Answer: a centripetal force is toward the center of curvature, the same as the direction of centripetal acceleration. According to Newton's second law of motion, net force is mass times acceleration: net . For uniform circular motion, the acceleration is the centripetal acceleration
Explanation:
Centripetal force is the force which causes the change in direction of velocity towards the center of the circular motion of an object.
What is Centripetal Force?Centripetal force is any kind of force which causes a change in the direction of velocity of an object which is moving towards the center of the circular motion. The component of this force which is perpendicular to the velocity of the object is the part which results in the centripetal force.
The force of gravity which acts up on a satellite in the orbit is an example of a centripetal force. The friction of the tires of a car which makes a turn that is similarly provides centripetal force on the car.
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Which of the following objects have gravitational potential energy?
A) a diver standing on a diving platform.
B) A hockey puck gliding across the ice.
C) an archers bow that is drawn back.
D) A runner waiting on the starting blocks.
Answer:
An archers bow that is drawn back
Answer:
A)a diver standing on a diving platform.
REQUESTS/REQUIERMENTS:
BRAINLIEST PLEASE
. Calculate the weight of a 7 kg object.
Answer:
68.6N
Explanation:
Given parameters:
Mass of object = 7kg
Unknown:
Weight = ?
Solution:
The weight is the downward force of gravity on a body;
Weight = mass x acceleration due to gravity
Weight = 7 x 9.8 = 68.6N
PLEASE PLEASE
HELP!!!!!!!!
Answer:
b 8W
Explanation:
i dont know u find out
Answer:
B. 8 I believe that this is the answer
How could the speed of a car be determined?
Answer:
try the formula v=s/t
v= velocity
s= speed
t=time
Explanation:
A force of 540 N is exerted on a 8 kg mass through 11 m. How much work was done?
• 4320 J
• 5940
• 742.5 J
• 47520 J
HELP PLEASE
A student is using graphs to model the relationship between frequency and wavelength in light waves produced by a source that is changing color over time. The student had completed the graph for frequency shown below. Which graph should the student use for wavelength change during this same period?
A 136 kg defensive lineman is about to tackle a 100 kg quarterback. Right before
impact, the lineman is moving north at 6.0 m/s and the quarterback is moving
north at 1.0 m/s. Determine the speed and direction of the two players
immediately after the tackle.
Answer:
3.88 m/s North
Explanation:
We are given that
[tex]m_1=136kg[/tex]
[tex]m_2=100 kg[/tex]
[tex]v_1=6 m/s[/tex]
[tex]v_2=1m/s[/tex]
We have to find the speed and direction of the two players
immediately after the tackle.
Using linear conservation of momentum
[tex]m_1v_1+m_2v_2=(m_1+m_2)v[/tex]
Substitute the values
[tex]136\times 6+100\times 1=(136+100)v[/tex]
[tex]916=236v[/tex]
[tex]v=\frac{916}{236}[/tex]
[tex]v=3.88m/s[/tex]
Direction of the two players immediately after the tackle is North.
Help
Why do you think that if you drop two balls, exactly two balls rise on the other side at a
similar speed?
Answer:
It conserves both energy and momentum in the collision at the same time. By design, when the balls collide the strings that hold them up are vertical (assuming balls are only swung from one side).
Explanation:
Hope This Helps!!
Ep = mxgx h. Re-arrange to give an equation for:
a) The mass m.
b) The gravitational field strength g.
c) The height h.
Answer:
Ep=mxgxh.
a) m=ep/gxh
b) g=ep/m/h
c)h=ep/mxg
Answer:
Ep=mgh
Ep/gh=mgh/gh
Ep/gh=m
A ball with a mass of 5 kg is accelerating at 5 m/s/s. What is the force acting on the ball?
What is the relationship between distance and sound wave return time?
Which of the boxes on the electromagnetic spectra shown below contains all
the frequencies within the visible range?
Answer:
C.
Explanation:
C. has the box on the colors, which is the rainbow because it is the visible light we are able to see.
Answer:C
Explanation:
A rocket has a mass of 80,000 kg and accelerates at a rate of 35 m/s2. Calculate the force that provides this acceleration,
Explanation:
Given
Mass(M) = 80,000 kg
Acceleration (a) = 35 m/s²
Force (F) = ?
We know we have the formula
F = m * a
= 80000 * 35
= 2800000
= 2.8 * 10 ^ 6 N
The force is 2.8 * 10 ^ 6 N.
Hope it will help :)❤
If a rocket has a mass of 80,000 kg and accelerates at a rate of 35 m/s2. then the force that provides this acceleration would be 2800000 Newtons.
What is Newton's second law?Newton's Second Law states that The resultant force acting on an object is proportional to the rate of change of momentum.
The mathematical expression for Newton's second law is as follows,
F = m*a
As given in the problem we have to find the force that provides the acceleration of 35 meters / second², if the rocket has a mass of 80,000 kg,
The force acting on the rocket = 80,000 × 35
= 2800000 Newtons
Thus, the force acting on the rocket would be 2800000 Newtons.
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A 3kg ball has an initial velocity of 6m/s. How much energy will be transformed into Gravitational
Energy?
Amy has a mass of 50 kg, and she is riding a skateboard traveling 10 m/s. What is her momentum?
The section of the lever to the right of the fulcrum could be described as the?
Answer:
Input Force
Explanation:
Answer:
resistance distance.
Explanation:
A photovoltaic cell produces electricity when the sun shines. What energy conversion is going here?
Answer:
light potential energy is converted into electrical potential energy.
Explanation:
A solar heat absorbs the light that creates pairs of electron - holes, these free charges when moving create a current, the light energy stored in the radiation is converted into electrical energy within the n-p junctions.
In summary, light potential energy is converted into electrical potential energy.
10. If a wave has a frequency of 12 Hz and a wavelength of 3 meters,
what is its wave speed?
Answer: 36 m/s
Explanation:
Wave speed = Wavelength * Frequency
12 * 3 = 36 m/s
Answer: 36 m/s
Explanation:
hii please help i’ll give brainliest if you give a correct answer please please hurry it’s timed
Answer:
A
Explanation:
You can rule out c and d since they make no sense but i would say a makes more since than b since your sitting on the chair your putting force on it
in what way is Speed related to Kinetic Energy?
Answer:
It turns out that an object's kinetic energy increases as the square of its speed
Explanation:
A car moving 40 mph has four times as much kinetic energy as one moving 20 mph, while at 60 mph a car carries nine times as much kinetic energy as at 20 mph.
basiclly the faster the more impact it has when it suddenly stops or hit somthing
What type of electromagnetic radiation is used by mobile phones?
Cell phones emit radiofrequency radiation ( radio waves ), a form of non-ionizing radiation, from their antennas
Brainiest if correct? I'd appreciate it SM :D
Answer:
radio frequency (RF)
The type of radiation emitted by cell phones is also referred to as radio frequency (RF) energy
Explanation:
hope this helps have a good rest of your night :) ❤
A horizontal net force F is exerted on a 2.0 kg object at rest. The object starts at I = 0 m and travels
4.0 m along a horizontal frictionless surface. The net force F as a function of the object's position is
shown below.
Force (N)
40+
30
20-
10+
Position (m)
2
3
4
5
6
7
What is the velocity of the object?
Answer:
It’s 12 m/s
Explanation:
Khan approved
A horizontal net force F is exerted on a 2.0 kg object at rest. The object starts at x = 0 m and travels 4.0 m along a horizontal frictionless surface. The net force F as a function of the object's position x is shown below.
What is the velocity of the object?
Answer: 12 m/s
help plss .. Two bicyclists are accelerating forward in a straight line, and Biker 1 has less
mass than Biker 2. If the net force on the bikers is the same, which statement
describes their acceleration?
Explanation:
Remember Newton's Second Law.
[tex]F=ma[/tex]
If the force acting on both bikers is the same, we can look at the relationship between acceleration and mass.
If Biker 1 has a mass of 10kg and Biker 2 has a mass of 20kg, and both are being acted upon by a force of 100 N, let's see what that looks like. [tex]100 = 10*a_1 \rightarrow a_1 = 100/10 = 10[/tex]
[tex]100 = 20 *a_2 \rightarrow a_2 = 100/20 = 5[/tex]
So, given the same force, an object with GREATER mass will have less acceleration.
What does AS>0 mean?|
I
Answer:
Significant Other
Explanation:
that comes to mind when I see that
9. A 12 v battery is connected to four 5 ohm light bulbs. What is the equivalent
resistance for the bulbs in series? In parallel?
10. What would be the current through each light of problem 9?
For parallel circuit?
For series circuit?
-no bs answers
The law of universal gravitation offers a mathematical explanation for the attraction between the moon and Earth.
Answer:
True.
Explanation:
The given statement is true that the law of universal gravitation offers a mathematical explanation for the attraction between the moon and Earth.
According to this law, the forces between two masses can be calculated by the product of their masses and divided by the square of the distance between them. Mathematically, it can be written as :
[tex]F=\dfrac{Gm_1m_2}{r^2}[/tex]
G is universal gravitational constant
Hence, the given statement is true.
A 0.20 kg baseball is traveling at 40 m/s toward the batter. The ball is hit by the bat with a force of 200N, and is
now headed toward the pitcher at 25 m/s. How long was the bat in contact with the ball?
Answer:
Time, t = 0.015 seconds.
Explanation:
Given the following data;
Mass, m = 0.2kg
Force, F = 200N
Initial velocity, u = 40m/s
Final velocity, v = 25m/s
To find the time;
Ft = m(v - u)
Time, t = m(v - u)/f
Substituting into the equation, we have;
Time, t = 0.2(25 - 40)/200
Time, t = 0.2(-15)/200
Time, t = 3/200
Time, t = 0.015 seconds.
Note: We ignored the negative sign because time can't be negative.
Can someone help me with this question
Answer:
extrusive igneous rock
How does information travel during transcription?
a) RNA to amino acid
b) DNA to amino acid
c) DNA to RNA
d) RNA to DNA
How much is the pressure exerted at a point where a ball- pointed pen of area 1mm 2 is pushed against the paper with a force of 24 N
Answer:
Please find the attached pdf
Explanation: