The number of protons that strike the tumor each second is [tex]1.7*10^8[/tex] protons.
What is proton beam therapy?Since it do not produce proper outcomes, proton beam therapy is only appropriate for certain types of cancer, such as highly complex brain, head and neck cancers, and sarcomas.
Here, it is mentioned that
Energy of proton = [tex]2.8*10^{-11}[/tex] Joules.
Current = 84 nA = [tex]84*10^{-9}[/tex] Ampere.
As well as
Energy of total dose = [tex]3.4*10^{-3}[/tex]
The quantity of charge per unit time is mentioned as:
Q = It = Ne
Number of proton (N) = Q/e
[tex]N=\frac{2.8*10^{-11}}{1.602*10^{-19}}[/tex]
[tex]N=1.75*10^8[/tex]
Thus, this is the number of proton in the given scenario.
For more details regarding proton beam therapy, visit:
https://brainly.com/question/26591632
#SPJ1
There is one exception to the rule that waves don't move matter. What is it?
A
When ocean waves push water onto the shore.
B
When a fish swims through a lake or pond.
C
When a seagull is floating on the ocean's water.
D
When lightning makes the sound of thunder move.
Answer:
Sound waves/vibrations move matter in the form of air particles
Explanation:
Sound waves/vibrations move matter in the form of air particles which is how sound propagates, so that could be an exception to the rule. However, you could say water waves move matter too.
A merry-go-round of radius 2.00m is rotating about a frictionless pivot. it makes one revolution every 5.00s. the moment of inertia of the merry-go-round (about an axis through its center) is 500kgm2. A child of mass 25.0kg, originally standing at the rim, walks in to the exact center. What is the new angular speed of the merry-go-round?
The new angular speed of the merry-go-round is 1.05 rad/s.
What is the principle of conservation of angular momentum?
The law of conservation of angular momentum states that when the net external torque acting on a system about a given axis is zero, the total angular momentum of the system about that axis remains constant.
I₁ω₁ = I₂ω₂
where;
I₁ is the initial moment of inertiaI₂ is the final moment of inertiaω₁ is the initial angular velocityω₂ is the final angular velocityInitial angular velocity of the merry go round is calculated as follows;
ω₁ = 2π rad / (5 s) = 1.257 rad/s
Moment of inertia of the child = MR² = 25 x 2² = 100 kgm²
New angular speed of the merry go roundω₂ = I₁ω₁/I₂
ω₂ = (500 x 1.257) / (500 + 100)
ω₂ = 1.05 rad/s
Thus, the new angular speed of the merry-go-round is 1.05 rad/s.
Learn more about angular speed here: https://brainly.com/question/6860269
#SPJ1
-a. Find the speed required to throw a ball
straight up and have it return 6 seconds later.
Neglect air resistance.
b. How high does the ball go?
The speed required would be 60 m/s to throw a ball straight up and the ball goes 180 meters high.
What is the velocity?Velocity is defined as the displacement of the object in a given amount of time and is referred to as velocity.
t = 6 sec for the first path, which is when the ball is elevated to its highest point.
Neglect air resistance.
So, v = u + at
Here, v = 0
⇒ u - 10 × 6 = 0
Hence, u = 60 m/s
Now, s = ut + 1/2×a×t²
So, s = 60× 6 - 0.5 × 10 × 36 = 360 – 180 = 180 m
Therefore, the speed required would be 60 m/s to throw a ball straight up and the ball goes 180 meters high.
Learn more about Velocity here:
https://brainly.com/question/12904979
#SPJ1
Picture is question i need help as soon as possible
Answer:
32.7 m
Explanation:
If it is in the air for 5.16 s the highest point is at one-half of this time
= 5.16/2 = 2.58 s <====== at this point velocity = zero
vf = vi + at
0 = vi - 9.8 (2.58) shows vi = 25.3 m/s
d = vi t + 1/2 at^2
= 25.3 (2.58) - 1/2 (9.8) (2.58^2 ) = max height = 32.7 meters
in object in motion tend to stay in motion in object in rest tends to stay in rest. "many years before newton wrote this law,__________stated the same idea as the principal of _______.
An object in motion tends to stay in motion in an object in rest tends to stay in rest. "many years before newton wrote this law, Galileo's the same idea as the principle of inertia.
This is further explained below.
What is inertia?Generally, When an item experiences inertia, it keeps moving in the same direction or at the same pace until another force changes it.
The phrase "the principle of inertia" as it is used in Newton's first rule of motion is correctly interpreted as the word "inertia."
In conclusion, The concept of inertia was first proposed by Galileo many years before Newton codified it as "an object in motion tends to remain in motion whereas an object in rest tends to stay in rest."
Read more about inertia
https://brainly.com/question/3268780
#SPJ1
please help me with this test i’ll give you brainlist
Answer: D? nutrients?
Explanation:
Answer:
B. Fish feed
Explanation:
five main inputs to the system are:
water
oxygen
light
feed
electricity
acquaponic system is:
fish make waste->
worms make waste into fertilizer->
fertilizer is for plants->
plants filter the water for the fish
wikipedia
teslas for sustainable society
A feather and a coin are dropped from the same height at the same time in outer space. Which lands first?
Answer:
They will land at the same time
Explanation:
Because of no air resistance in space, The feather and coin both have a will drop and land at the same time. This was proven when the feather and hammer test was conducted on the moon by the first astronauts on the moon.
Electric and magnetic fields are mathematical representations of
forces that influence massless particles.
forces that influence particles with electric charges
Maxwell's equations.
forces that influence massive particles
Electric and magnetic fields are mathematical representations of Maxwell's equations
Maxwell's equations, in their broadest sense, can be expressed as
∇ · E = ρ (gauss law)
∇ · B = 0 (Gauss' law of magnetism)
∇ x E = -(∂B/∂t) (Faraday's law of induction)
∇ x H = J + ∂D/∂t (Ampère's law)
The free electric charge density is denoted by in the first equation. J is the free current density in the final equation.
The four equations that make up Maxwell's equations explain how magnetic and electric fields behave and interact. They ultimately show that magnetic and electric fields are only two different expressions of the same event
To learn more with Maxwell's equation:
https://brainly.com/question/17053846
#SPJ9
Electric and magnetic fields are mathematical representations of Maxwell's equations
A mathematical representation of electromagnetic wave is given by the two equations E = E cos (kx - wt) and B=B cos(kx-ot), where is the amplitude of the electric field and B is the amplitude of Othe magnetic field
Maxwell's equations, in their broadest sense, can be expressed as
∇ · E = ρ (gauss law)
∇ · B = 0 (Gauss' law of magnetism)
∇ x E = -(∂B/∂t) (Faraday's law of induction)
∇ x H = J + ∂D/∂t (Ampère's law)
The free electric charge density is denoted in the first equation. J is the free current density in the final equation.
The four equations that makeup Maxwell's equations explain how magnetic and electric fields behave and interact. They ultimately show that magnetic and electric fields are only two different expressions of the same event
To learn more about Maxwell's equation:
brainly.com/question/17053846
#SPJ4
What is the motional kinetic energy of a 25 kg object moving at a speed of 10 m/s?
1250kgm²/s is the motional kinetic energy of a 25kg object moving at a speed of 10m/s
Kinetic energy of an object is defined as the energy which is possessed when that is in motion. It is the energy of the kinetic mass of an object. Kinetic energy is never negative and is a scalar quantity. That is, it shows only size, not orientation.
Given to us
Mass of the object, m=25kg
Velocity of the object, v=10m/s
K.E=1/2x25x10²
=1250
Kinetic energy is directly proportional to the mass and velocity squared (K.E.) of an object. =1/2xMxV². If the mass is in kilograms and the velocity is in meters/second, then the kinetic energy is in kilograms - meters squared/second.
Learn ore about Kinetic energy here https://brainly.com/question/25959744
#SPJ9
According to the conservation of momentum, if a smaller football player collides with a
much larger football player, what can be said about the movement of each player after
the collision?
Although the bigger football player will still move, his speed will be substantially slower than the smaller players due to his greater mass.
Two equal and opposing forces are generated at the place of collision when the collision occurs. The more enormous mass will be forced to accelerate by force applied to it, and the smaller group will be forced to slow down by force applied to it.Larger masses will experience less acceleration due to their lower acceleration, which will result in a lower velocity.Momentum happens whenever a person or item moves, but it is especially crucial in sports and situations where collisions happen. A simple method to understand momentum is to see it as a tool that a sportsperson can use to affect a different object or an opponent. A hockey player's high-velocity puck hit can have enough momentum to push the goalie backward. Even though a puck is light and has little mass, National Hockey League players may hit it at speeds of over 100 mph (160 km/h) because momentum is a function of mass and velocity. The puck and the goaltender, along with the goalie's pads, mask, gloves, skates, and stick, briefly unite as the puck strikes the goalie.Complete question: According to the conservation of momentum, if a more minor football player collides with a much larger football player, what can be said about each player's movement after the collision?
A. The larger football player will move, but because of his larger mass, his velocity will be much slower than the smaller player
B. The smaller football player will be stopped completely, his mass being not enough to move the larger one
C. The larger football player will have to start moving towards the smaller one as it collides if there is to be any effect
D. The smaller football player will experience a larger force than the larger football player
To learn more about the conservation of momentum
https://brainly.com/question/3920210
#SPJ1
Critical Thinking 1. One day, a group of neighbourhood degs Started barking on their own. The residents living in that area are left wondering what provoked the dogs to bark. What could be the reason?
The reason behind the barking of the group of neighborhood dogs could be Territorial/Protective or Alarm/Fear.
What is bark or barking?
Dogs are known for making the most prevalent barking noises. Wolves, coyotes, foxes, seals, and barking owls are a few other creatures that make this sounds. The most typical onomatopoeia for this sound in English, particularly for large dogs, is "woof." The word "bark" can also be used to describe the sound made by numerous canids. A bark is a brief vocalization, as per the researchers at the University of Massachusetts Amherst.
Territorial/Protective: When a person or another animal enters their perceived area, your dog may bark excessively, depending on the breed. The barking frequently gets louder as the threat draws closer. When your dog barks in this manner, he will appear vigilant and sometimes even hostile.
Alarm/Fear: Some dogs will bark in alarm or fear at any sound or item that draws their attention or alarmed them. It's not just in their home country where this can occur. When they are afraid, their tails will be tucked and their ears will be pulled back.
To know more about bark, go to link
https://brainly.com/question/5082728
#SPJ9
A box slides across a frictionless horizontal surface with constant acceleration 4.70 m/s2 and over a time interval reaches a final velocity of 13.0 m/s. (a) If its initial velocity is 6.50 m/s, what is its displacement (in m) during the time interval?
The displacement of the box is obtained as 13.48 m along the horizontal surface.
What is the displacement?Let us recall that the displacement is the distance covered in a specific direction. The displacement is a vector quantity because it has both magnitude and direction.
In this case, we want to obtain the displacement of the box when;
Initial velocity u = 6.50 m/s
final velocity v = 13.0 m/s
Acceleration a = 4.70 m/s2
Now;
v^2 = u^2 + 2as
s = v^2 - u^2 /2a
s = (13)^2 - (6.5)^2/ 2 (4.70)
s = 126.75/9.4
s = 13.48 m along the horizontal surface
Learn ore about displacement:https://brainly.com/question/11934397
#SPJ1
What organisms serves as the pollinator of traveler’s palm? Describe how the pollinator and the traveler’s palm are suited to each other.
The main pollinators of the traveler's palm is the black-and-white ruffed lemurs.
They are suited for pollination as the lemurs possesses long nuzzles to access the nectar whereas the traveler's palm possess anthers that easily attach to the lemurs.
What are pollinators?Pollinators are agents which carry out the function of the pollination of plants flowers.
Pollination is the process by which pollen grains are transferred from the anther to the stigma of the flowers of the same plant or different plants.
The agents of pollination in plants are usually insects such as bees and butterflies, humans, animals, and even wind.
The traveler's palm is a native plant specie endemic to the Island of Madagascar. The main pollinators of this plan is another animal specie endemic tp Madagascar as well, the black-and-white ruffed lemurs.
The lemurs and the traveler's palm are suited for each other in the process of pollination in that long muzzles of the black-and-white ruffed lemur are modified to access the energy-rich nectar and the anthers of the flower are easily dispersed on the body of the lemur once it opens the flower petals.
Learn more about pollination at: https://brainly.com/question/3431390
#SPJ1
A person holds a 0.300 kg pomegranate at the top of a tower that is 96 m high. Another person holds a 0.800 kg melon next to an open window 32 m up the tower.
Calculate the gravitational potential energies of the melon and the pomegranate. Which one has more potential energy?
1. The potential energy of the pomegranate is 282.24 J
2. The potential energy of the melon is 250.88 J
3. The pomegranate has more potential energy
What is potential energy?This is the energy possesed by an object by virtue of it's position. It is expressed mathematically as
Potential energy (PE) = mass (m) × acceleration due to gravity (g) × height (h)
PE = mgh
With above formula, we can determine the potential energy as follow:
1. How to determine the potential energy of the pomegranate
Mass (m) = 0.3 kgHeight (h) = 96 mAcceleration due to gravity (g) = 9.8 m/s² Potential energy (PE) = ?PE = mgh
PE = 0.3 × 9.8 × 96
PE = 282.24 J
2. How to determine the potential energy of the melon
Mass (m) = 0.8 kgHeight (h) = 32 mAcceleration due to gravity (g) = 9.8 m/s² Potential energy (PE) = ?PE = mgh
PE = 0.8 × 9.8 × 32
PE = 250.88 J
From the calculations made above, the pomegranate has more potential energy.
Learn more about potential energy:
https://brainly.com/question/22274239
#SPJ1
Writing in Science
5. Identify all the different forms of energy
and all the energy transformations that you
see in the picture below. Write your
response in your Science Journal. sc.7.P.11.2
The different forms of energy involved here are sound energy, potential energy, kinetic energy and heat energy, potential energy changes into heat energy and sound energy to kinetic energy.
What is energy transformation?Energy conserved in nature and their soul cannot be created nor destroyed in an isolated system there is always a change of energy from one form of energy to another.
What is conservation of energy?Conservation of energy states that in an associated system we cannot create and destroy energy it always transforms one form of energy to another.
According to the question:
A person hits a ball with a golf stick.
Here first the person stretches his arm generating potential energy as it hits the ball this potential energy gets converted into three types of energy simultaneously.
First it will convert into heat energy some part of potential energy will also convert into sound energy and finally the large part of the potential energy will get converted into kinetic energy.
Therefore, The different forms of energy involved here are sound energy potential energy kinetic energy and heat energy, potential energy changes into heat energy and sound energy to kinetic energy.
Learn more about energy conversion here:
https://brainly.com/question/11234965
#SPJ9
What real-world applications depend on the relationship between distance, average speed, and time?
One real-world application of the relationship between distance, average speed and time is calculating the mileage of a car.
How do you use speed in daily life?Depending on your goals, you may walk more quickly or slowly when you are moving. Depending on the amount of traffic, you might drive your car at 50, 65, or even 5 miles per hour. Your instantaneous speed, or speed at that precise moment or location, is what you can see on the speedometer.
How is distance used in real life?It can be used in many different ways in daily life. In navigation, it is utilized. The distance formula is used by a pilot to determine how far apart their plane is from the other plane. They locate the plane's coordinate before using the distance formula to calculate the distance.
To know more about navigation :
https://brainly.com/question/2665741
#SPJ9
As the masses grow when the distance stays the same, what happens to the force?
Answer:
The force of gravity depends directly upon the masses of the two objects, and inversely on the square of the distance between them. This means that the force of gravity increases with mass, but decreases with increasing distance between objects.
Explanation:
In the movie Polar Express the hero boy character walks across the top of the train in order to return a lost ticket to another child. Instead he encounters a man.
Assume the train is traveling in a perfectly straight line, and both the train and boy maintain constant speeds. The boy's initial position is 1.5 m and the man's initial position is 17.2 m. If the train/man are moving at a constant velocity of 72 m/s, and the boy is walking at a constant velocity of 0.5 m/s, what position will they all have when the boy reaches the man? Round your answer to the nearest 1 m.
This issue is best answered using a calculator and trigonometric concepts to provide the most accurate answer. Finding the total of all horizontal (east-west) and total of all vertical (north-south) displacements is the first stage.
Applying the Pythagorean theorem leads to the magnitude of the resultant (R).
R2 = (30.0 m)2 + (4.0 m)2 = 916 m2
R = Sqrt(916 m2)
R = 30.3 meters
This angle theta is the angle between west and the resultant. Directions of vectors are expressed as the counterclockwise angle of rotation relative to east. So the direction is 7.59 degrees short of 180 degrees. That is, the direction is ~172 degrees.
Learn More about velocity here
https://brainly.com/question/80295
#SPJ9
A fighter pilot is exposed to an acceleration of 3g in the horizontal direction during takeoff. Knowing that 1g-9.8 m/s² and that the mass of the fighter pilot is 51.7 kg. what force (in
Newtons) does the fighter pilot experience in the horizontal direction? This is the force that she feels "pressing her into the back of the seat."
1520 N Force she feels "pressing her into the back of the seat."
We have given in the statement :
In horizontal direction,
a = 3 g
a= 3×9.8 m/s^2
a= 29.4 m/s^2
Now using force formula to find the magnitude
F = m×a
F= 51.7 Kg × 29.4 m/s^2
F= 1520 N
A push or pull that an object experiences as a result of interacting with another item is known as a force. Every time two items interact, a force is exerted on each of the objects. The force is no longer felt by the two objects after the interaction ends. Only when there is interaction do forces actually exist.The standard metric unit known as the Newton is used to quantify force. "N" stands for Newton in abbreviation.To know more about Force visit : https://brainly.com/question/19734564
#SPJ1
A child weighs 326 N. What is the child's mass?
Please help!!
The mass of the child is 33.26 kg.
What is mass?Mass can be defined the quantity of matter a body contained.
The S.I unit of mass is kilogram (kg)
To calculate the mass of the child, we use the formula below.
Formula:
W = mg............. Equation 1Where:
W = Weight of the childm = mass of the childg = acceleration due to gravityMake m the subject of the equation
m = W/g.............. Equation 2From the question,
Given:
W = 326 Ng = 9.8 m/s²Substitute these values into equation 2
m = 326/9.8m = 33.26 kgHence, the mass of the child is 33.26 kg.
Learn more about mass here: https://brainly.com/question/19385703
#SPJ1
A sample contains 10 g of a radioactive isotope. How much radioactive
isotope will remain in the sample after half-life?
• A. 5.0 g
• B. 7.5 g
O c. 2.5 g
O D. 10.0 g
c. 2.5 g radioactive isotope will remain in the sample after half-life
The sample will degrade from 10 g to 5 g over the first half-life. The isotope's second half-life will see a 5 g to 2.5 g decay.
What exactly are radioactive isotopes used for?There are several uses for radioactive isotopes. Cobalt-60, for instance, is frequently used as a radiation source in medicine to halt the spread of cancer. For diagnostic reasons and in studies on metabolic processes, other radioactive isotopes are utilised as tracers.
used in oil well research and to find leaks in industrial pipe networks. used in nuclear medicine for cancer diagnosis and nuclear cardiology. used to examine the metabolism and development of bones.
By neutron activation in a nuclear reactor, which is the most typical technique of creating radioisotopes
learn more about radioactive isotopes refer
https://brainly.com/question/18640165
#SPJ9
What is work? What is energy? How is energy related to work?
The amount of energy transferred by the force for the movement of an object is called work or work done.
What is work? What is energy? How is energy related to work?
Work:
Work is the force applied due to which it can travel distance. In physics the work done is defined as if a body exerts a force on an object and the objects travel some distance due to this force then it is called work. However in our daily life if we take a book while standing, so we think that we done a work but it can not be work in physics.
The formula of the work is;
W=Fs
Energy:
Energy is defined as the ability of the body to do work is known as energy. Its meaning is very simple and easy energy is just like the force that causes things to move.
Further the energy is divided into two parts kinetic energy and potential energy.
The formula of energy is E = mc2, which is developed by the Albert Einstein.
Relation Between Work And Energy:
We can transferred the energy to an object for moving it. The transferring energy maybe in the form of force. This amount of energy transferred by the force to move an object is called work or work done.
So we can conclude that the amount of energy transferred by the force for the movement of an object is called work or work done.
Learn more about Energy here: https://brainly.com/question/13881533
#SPJ1
A 150.0 g pot of water at room temperature (22.0°C) is placed on a stove. How much heat is required to change this water to steam at 100.0°C?
The amount of heat required to change this water to steam at 100.0°C is 48,976.2 J.
Heat required to change the state of the waterThe amount of heat required to change the temperature of the water at 22 degrees Celsius to 100 degrees Celsius is calculated as follows;
Q = mcΔθ
where;
m is mass of the waterc is specific heat capacity of water = 4.186 J/gCΔθ is change in temperature of the waterSubstitute the given parameters and solve for the energy required to change the phase of the water.
Q = (150g)(4.186 J/gC)(100C - 22C)
Q = 48,976.2 J
Thus, the amount of heat required to change this water to steam at 100.0°C is 48,976.2 J.
Learn more about heat capacity of water here: https://brainly.com/question/16559442
#SPJ1
a car initially traveling at 15m/s accelerates at a constant rate of 4.5 m/s^2 over a distance of 45m. How long does it take the car to cover this distance?
The time it takes the car to cover the distance is 0.45 seconds
What is time?Time is the continued sequence of existence and events that occurs in an apparently irreversible succession from the past, through the present, into the future.
To calculate the time it takes the car to cover the distance, we need to find the final velocity first using the formula below
Formula:
v² = u²+2as.......... Equation 1Where:
v = Final velocityu = Initial velocitys = Distancea = Acceleration.From the question,
Given:
u = 15 m/sa = 4.5 m/s²s = 45 mSubstitute these values into equation 2
v² = 15²+2×45×4.5v² = 225+405v² = 630v = 25.1 m/s.Finally, to calculate the time, we use the formula below.
t = (v+u)/2s........ Equation 2t = (15+25.1)/(2×45)t = 40.1/90t = 0.45 secondsHence, the time it takes the car to cover the distance is 0.45 seconds.
Learn more about time here: https://brainly.com/question/17146782
#SPJ1
Which of the following was NOT a part of the arrival process for Jews at the concentration camps?
A. Defense training
B. Losing all possessions
C. Hair shaving
D. Strength test for work
Answer:
a
Explanation:
A spring-loaded gun shoots a 0.0050-kg bullet vertically upward with an initial velocity of 21 m/s, What is the height of the bullet 4.0 s after firing
The height of the 0.0050 Kg bullet 4 s after firing is 78.4 m
We'll begin by listing the given parameters from the question. This is given below:
Mass of bullet (m) = 0.0050 KgInitial velocity (u) = 30 m/sAcceleration due to gravity (g) = 9.8 m/s²Time (t) = 4 sHeight (h) =? How do I determine the height after 4 s?The height of the bullet after 4 s can be obtained as follow:
h = ½gt²
h = ½ × 9.8 × 4²
h = ½ × 9.8 × 16
h = 4.9 × 16
h = 78.4 m
From the calculation made above, we can conclude that the the height of the bullet after 4 s of firing is 78.4 m
Learn more about motion under gravity:
https://brainly.com/question/20385439
#SPJ1
The earth has a radius of 6.38×10^6 meters. Assume a perfectly smooth spherical earth. Calculate the minimum horizontal velocity required for an object to orbit the earth just above the surface.
The minimum horizontal velocity required for an object to orbit the earth just above the surface is 5.04 x 10¹⁰ m/s.
What is orbital speed of earth?The orbital speed of Earth or a natural satellite is the speed at which it orbits around the center of the system.
The minimum horizontal velocity required for an object to orbit the earth just above the surface is calculated as follows;
V(min) = √GMR
where;
G is universal gravitation constant = 6.67 x 10⁻¹¹Nm²/kg²M is mass of earth = 5.97 x 10²⁴ kgR is the radius of the earth = 6.38 x 10⁶ mSubstitute the given parameters and solve for the minimum orbital speed of the earth.
V(min) = √(6.67 x 10⁻¹¹ x 5.97 x 10²⁴ x 6.38 x 10⁶)
V(min) = 5.04 x 10¹⁰ m/s
Thus, the minimum horizontal velocity required for an object to orbit the earth just above the surface is 5.04 x 10¹⁰ m/s.
Learn more about orbital speed here: https://brainly.com/question/22247460
#SPJ1
During the 2014 Olympic games, a snowboarder rose 6.2 m vertically above the rim of the half-pipe. With what speed did he launch from the rim?
During the 2014 Olympic games, the speed of launch of the rim v = 11.024m/s.
Equation :To find the speed we can use straight line motion equations,
So,
v = u + at
v² = u² + 2as
s = ut + ½at²
v =?
u = 0
distance, s = 6.2m
t is not known
a is acceleration due to gravity
So,
v² = u² + 2as
v² = u² + 2 (9.8m/s²) 6.2m
v² = 0² + 121.52
v = √121.52
v = 11.024 m/s
Therefore, the speed of launch is 11.024m/s.
What is Motion in a Straight Line?An object is said to be in motion if its position in relation to its surroundings changes over time. It is a shift in an object's position over time. Linear motion is the only type of motion that exists.
To know more about Olympic games :
https://brainly.com/question/11781126
#SPJ9
A common practice used by IT professionals to ensure web safety is to conduct
regular training sessions with users to remind them of the threats that exist on the
web.
True
False
This is true, A common practice used by IT professionals to ensure web safety is to conduct regular training sessions with users to remind them of the threats that exist on the web.
What is information technology?
Information technology (IT) is the activity of using computers to generate, process, store, retrieve, and exchange different kinds of data and information. IT is typically employed in the context of business activities, as opposed to personal or recreational technology. IT is a component of information and communications technology (ICT). An information technology system (IT system) is often an information system, a communications system, or—to be more precise—a computer system, replete with all add-on hardware, software, and peripherals, that is used by a sparsely populated IT user base.
Internet safety is the activity of adhering to practical standards, comprehending contemporary technology, and safeguarding your electronic gadgets so you can fight off the bad elements of the online world. the sessions about internet safety or web safety is commonly taken by IT professional for the users.
To know more about information technology, go to link
https://brainly.com/question/4903788
#SPJ9
A truck accelerates from rest at a rate of 2.3 m/s2 for 12 seconds and then the driver hits the brakes and the truck accelerates at a rate of -1.6 m/s2 for 9 seconds. What is the A) final velocity and B) final displacement?
The final velocity of the truck is determined as 13.2 m/s.
The final displacement of the truck is determined as 183.6 m.
Velocity of the truck after 12 seconds
The velocity of the truck after 12 seconds is calculated as follows;
v = u + at
where;
v is the final velocity of the truck after 12 seconds
u is the initial velocity of the truck
t is the time of motion
a is the acceleration of the truck
v = 0 + 2.3(12)
v = 27.6 m/s
Final velocity of the truckThe velocity of the truck after 9 seconds is calculated as follows;
v = u + at
where;
v is the final velocity of the truck after 9 secondsu is the velocity of the truck after 12 secondst is the time of motiona is the deceleration of the truckv = 27.6 m/s + (-1.6)(9)
v = 13.2 m/s
Final displacement of the truckv² = u² + 2as
13.2² = 27.6² + 2(-1.6)s
174.24 = 761.76 - 3.2s
3.2s = 761.76 - 174.24
3.2s = 587.52
s = 587.52/3.2
s = 183.6 m
Learn more about final velocity here: https://brainly.com/question/25905661
#SPJ1