A reconnaissance
plane flies 584 km away
from its base at 940 m/s, then flies back to its
base at 1410 m/s.
What is its average speed?
Answer in units of m/s.

Answer:

i guess if the a glass gets to cold it will bust

Explanation:

The correct realistic problem for the given equation is problem 1 in which the electric field strength of the disc is half its value at the center of the disk.

We know that,

Electric field of a charged disc at a distance along its axis is given by,

E = σ / 2 ε ( 1 - x / √ ( [tex]x^{2}[/tex] + [tex]r^{2}[/tex] ) )

Electric field at the centre of a charged disc is given by,

[tex]E_{c}[/tex] = σ / 2 ε ( Since at centre, x = 0 )

Distance along the axis of a charged disk, where electric field strength's value is half its value at the center of the disk.

[tex]E_{x}[/tex] = [tex]E_{c}[/tex] / 2

σ / 2 ε ( 1 - x / √ ( [tex]x^{2}[/tex] + [tex]r^{2}[/tex] ) ) =  ( σ / 2 ε ) / 2

x / √ ( [tex]x^{2}[/tex] + [tex]r^{2}[/tex] ) = 1 / 2

4 [tex]x^{2}[/tex] = [tex]x^{2}[/tex] + [tex]r^{2}[/tex]

3 [tex]x^{2}[/tex] = [tex]r^{2}[/tex]

x = r / √ 3 ,which is the correct distance, when magnitude is half its value from centre.

Electric field is a field that surrounds electrically charged particles that exerts force on other charged particles in the field.

Therefore, the given equation is suitable for Electric field of a charged disc at a distance along its axis where electric field strength's value is half its value at the center of the disk.

The given question is incomplete. The completed question is

You are given the following equation to solve a problem:

σ / 2 ε ( 1 - x / √ ( [tex]x^{2}[/tex] + [tex]r^{2}[/tex] ) ) = [tex]E_{c}[/tex] = σ / 2 ε

Choose the most realistic problem for which this could be the correct equation.

1 ) At what distance along the axis of a charged disk is the electric field strength half its value at the center of the disk? Give your answer in terms of the disk's radius R.

2 ) At what distance along the axis of a charged disk is the electric field strength double its value at the center of the disk? Give your answer in terms of the disk's radius R.

3 ) At what distance along the axis of a charged square is the electric field strength double its value at the center of the square? Give your answer in terms of the square's side R.

4 ) At what distance along the axis of a charged square is the electric field strength half its value at the center of the square? Give your answer in terms of the square's side R.

To know more about Electric field

https://brainly.com/question/8971780

#SPJ4

Answer:

Hazard

Explanation:

A hazard is a source or a situation with the potential for harm in terms of human injury or ill-health, damage to property, damage to the environment, or a combination of these.

675g/cm³ is the density of the liquid

Here we have given that

density of wood be ρ.

the volume of the block be V          

The volume of the block =1/4 v

The volume of the immersed block (v) =V-1/4V=3/4V

We know the weight of the block = the weight of the water displaced by the submerged part of the block.

i.e. V x ρ x g    

= 3/4 x900g/cm³                            

= 675g/cm³

Density is a measure of mass divided by the volume of an object. Defined as mass per unit volume. here from the above equation we have substituted the given value and  we got the answer as 675g/cm³

Learn more about Density here https://brainly.com/question/1354972

#SPJ9

Answer:

1.11111 century mother duck

As we know velocity is the rate of change of position with respect to time.

Mathematically  [tex]Velocity = \frac{Position}{Time}[/tex]

Also, in a position-time graph, the velocity of a moving object can be represented by the slope of the graph i.e. Tan[tex]\alpha[/tex].

[tex]\alpha[/tex] is the angle made by the slope by the horizontal X-axis.

Distance travelled by the object is recorded on the Y-axis and time taken to complete that particular distance is noted on X-axis.

[tex]Tan\alpha = \frac{Position}{Time}[/tex]

[tex]Tan\alpha = Velocity = \frac{x}{t}[/tex]

According to the graph

for x = 8m, t = 2s

[tex]Tan \alpha = \frac{8}{2}[/tex] = 4 m/s

for x = 12m, t = 3s

[tex]Tan\alpha = \frac{12}{3}[/tex] = 4 m/s

Therefore for every change in distance, the time changes linearly which gives constant velocity as 4m/s.

Option (d) 4 m/s

To know more about velocity,

https://brainly.com/question/28308958

#SPJ1

two or more atoms loss or gain electrons to form an ion

Explanation:

up above

The block of material with a density of 1020 kg/m³ when placed into pure water will sink.

The Density of an object is the ratio of the mass and volume of the object.

The density of an object measure how compact the particles of an object are.

Dense objects have particles that are tightly packed together whereas less dense objects have particles that are less tightly packed together.

A denser solid will sink in a less dense liquid.

A less dense solid will float in a denser liquid,

Comparing the densities of the solid object and the density of water.

The block of material has a greater density than water. Hence, the block of material will sink in water.

Learn more about density at: https://brainly.com/question/1354972

#SPJ1

The possible values lie between 0 to 10. The transformed numeric value can be 10.

The skewed features need to be transformed in order to make them regularly distributed. With square root, cube root, and logarithm transformation, right-skewed features can be made normal.

Choose the cells that have text-based numbers recorded in them. Then Click Paste > Paste Special on the Home tab. After selecting Multiply, select OK.

Excel multiplies each cell by 1, converting the text to numbers in the process.

To know more about transformed numeric value visit:

https://brainly.com/question/27614472

#SPJ4

An example where an object on Earth follows Newton's first law is a ball rolling on the ground.

Newton's first law of motion states that if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.

Examples of Newton's first law of motion;

Thus, an example where an object on Earth follows Newton's first law is a ball rolling on the ground.

Learn more about Newton's first law of motion here: https://brainly.com/question/10454047

#SPJ1

The size of the object is 200 micrometers.

Size of the object = (Diameter of the field of view) / Fit number

Field of view of high power magnification 400X = 0.40mm

Fit number = 2  (object fills ½ of the field of view )

Size of the object = 0.40 / 2 = 0.2mm = 200 micrometer.

Work is completed at a rate determined by power. The Watt is the common metric unit of power. A unit of power is adequate for one unit of work divided by one unit of time, as suggested by the facility equation. As a result, one Watt is adequate for one Joule/second. The term "horsepower" is occasionally wont to describe a machine's output of power for historical reasons. The equivalence of horsepower is roughly 750 Watts.  a person is a machine,  a bit like a machine with a power rating. Some people possess greater strength than others. In other words, some people have the power to accomplish the same amount of work in the same amount of time or in less time.

To learn more about power click on this link:

brainly.com/question/2289248

#SPJ4

Two oxygen atoms would share the negative charge.

There are some compounds in which a single structure is insufficient to explain the properties of the compound. In that case, we have to involve a number of other structures which contributes to the overall structure of the molecule to different extents.

The arrows are used to show the transformation of the structures of the compounds. Looking at the structures as it has been shown here, we know that the oxygen atoms that would be involved in the resonance are the oxygen atoms that are in the conjugated system.

There are two oxygen atoms in the conjugated system hence they will share the  negative charge.

Learn more about resonance structure:https://brainly.com/question/23287285

#SPJ1

Option B, the fact that the rubber band is made up of elastic material ensures that it possesses mechanical energy as mechanical energy is stored in the form of kinetic and potential energy.

Mechanical energy is one form of energy in which the total energy is conserved in the form of kinetic and potential energy. In mechanical energy kinetic energy changes into potential energy and vice-versa.

Elastic materials are types of materials that get back to their original shape after getting stretched by an external force. For example, rubber is an elastic material because it is stretched when force is applied to it but returns to its original shape once the forces are removed.

Now in the given question we have been asked why rubber band has mechanical energy.

The first option states because of mass but since  the meaning of mass does not insure that it is only mechanical energy it could also be electrostatic energy or any other form of energy.

Option B talks about the elastic nature of rubber band which is a correct answer to the question.

Elastic nature of the rubber band ensures that the total energy remains conserved in the form of mechanical energy.

In rubber band when it is stretched in the stressed position it stores energy in the form of potential energy.

While it is released from stretched position the energy gets converted into kinetic energy therefore conserving the total mechanical energy.

Therefore option B which states that the mechanical energy of the rubber band exist because of elastic nature of the material of the rubber band is the correct option.

Learn more about mechanical energy here:

https://brainly.com/question/13552918

#SPJ9

Answer:

SImple machine:A machine with few or no moving parts that is used to make work easier.

Example: Wedge, inclined plane, screw, etc.

Complex machine: A machine that is a combination of two or more simple machines.

Example: Car, refrigerator, sewing machine, etc.

Explanation:

Answer:

a simple machine is a machine with few or no moving parts that is used to make work easier, such as a wedge or screw. a complex machine is a combination of two or more simple machines, such as a car, sewing machine or refrigerator.

Explanation:

The observation is due to heat transfer from the stearic acid to the water, and as a result, the temperature of the stearic acid falls, and it solidifies whereas the temperature of the water rises.

Heat transfer is the process by which heat energy moves from one body or object to another.

Heat is transferred from a hotter to a colder object.

There are three major processes of heat transfer, they are:

Conduction is a for of heat transfer which occurs without actual movement of the molecules, but as result of the vibration of the particles thereby transferring energy from one molecule or particle to the next.

Considering the observation above:

A boiling tube containing liquid stearic acid which has a melting point of 69°C is placed into an insulated cup of water as the stearic acid solidifies the temperature of the water rises.

The given observation is because heat has been transferred from the stearic acid to water. Thus, the temperature of the stearic acid falls, and it solidifies whereas the temperature of the water rises.

Learn more about heat transfer at: https://brainly.com/question/16055406

#SPJ1

When t is 1.5 seconds displacement of the object is 0.41 m.

Displacement of an object is defined as the shortest path covered by an object. It can be represented in the units centimeters and meters.

The object's time of simple harmonic motion is T.

T = 2 seconds

The object's amplitude simple harmonic motion is a.

a = 0.5 m

Displacement of the object is maximum when t = 0.

The displacement of the object is y.

When t is 1.5 seconds displacement of the object is,

[tex]y = a \: sin( \frac{2\pi}{T} )t[/tex]

[tex]y = 0.5\: sin( \frac{2\pi}{2} ) \times 1.5[/tex]

[tex]y = a \: sin( \pi \: 1.5)[/tex]

y = 0.41 m

Therefore, when t is 1.5 seconds displacement of the object is 0.41 m.

To know more about displacement, refer to the below link:

https://brainly.com/question/16886780

#SPJ4

Using the equations of kinematics, we obtain the following results;

The maximum height is the height that was attained by the projectile. In this case, we have the fact that the projectile was fired vertically upwards with a speed of 34.0m/s. On the descent, the cannonball lands on top of a 30.0m tall building.

1) The maximum height could be obtained from;

v^2 = u^2 -2gh

v = final velocity ( 0 m/s at the maximum height)

u = initial velocity = 34.0m/s

g = acceleration due to gravity = 9.8 m/s^2

h = maximum height attained

Since v = 0 m/s

u^2 = 2gh

h = u^2/2g

h = (34)^2/ 2 * 9.8

h = 1156/19.6

h = 59 m

2) Given that the distance covered from the maximum height to the top of the building = 59 m - 30 m = 29 m

v^2 = u^2 + 2gh

In this case, the initial velocity is zero because the cannonballs dropped from a height

v^2 = 2gh

v = √2gh

v = √2 * 9.8 * 29

v = 24 m/s

Given that;

v = u - gt

v = 0 m/s when the cannon ball is projected upwards;

u = gt

t = u/g

t = 34.0m/s/9.8 m/s^2

t = 3.5 secs

The total time spent in air = 2(3.5 secs) = 7 secs

Learn more about kinematics:https://brainly.com/question/7590442

#SPJ1

Electrons, like all other matter, exhibit the dual behavior of both particles and waves. Since electrons travel like waves, their energy is restricted to a certain energy level, each of which is associated with a specific wavelength.

Wave-particle duality is the idea that matter and energy have characteristics that are typical of both waves and particles. Depending on the circumstances, the matter may be seen as a wave or a particle.

Objects with huge masses, like baseball, have such small wavelengths that they are best regarded as particles. On the other hand,  objects with small masses, like photons, have huge wavelengths and are best regarded as waves. However, objects with intermediate masses, like electrons, have characteristics of both particles and waves.

As a result, in 1924 de Broglie hypothesized that a particle like an electron may be characterized by a wave. Since electrons are waves, their energy is limited to specific energy levels, each of which corresponds to a given wavelength which is given by

[tex]\lambda =\dfrac{h}{mv}[/tex]

Where h ⇒Planck’s constant,

m  ⇒ mass of the particle

v  ⇒ velocity of the particle

Read more about Wave-particle Duality:

https://brainly.com/question/14270527

#SPJ4

Fill in the blank:

Electrons, like all other matter, exhibit the dual behavior of both         and                     Since electrons travel like waves, their energy is restricted to a certain energy        , each of which is associated with a specific wavelength.

Answer:

Choice C

Explanation:

In any programming language, the variable cannot be in quotes.

Many languages regard a string as literal if it is surrounded by a single quote rather than a double quote. Any computer language prohibits putting quotations around a variable. Thus, option C is correct.

Only letters (including uppercase and lowercase characters), numbers, and underscore are permitted in variable names.

A variable's first letter must either be a letter or an underscore. There is no restriction on the length of a variable name or identifier.

Usually, an experiment contains independent, dependent, and controlled variables.

Therefore, A variable in programming is a value that can change based on external factors or data that has been supplied to the program.

Learn more about variables here:

https://brainly.com/question/28592557

#SPJ2

If the fish is considered as the system, it is an open system

All living things are an open system, since there is a constant exchange of energy and matter with the environment. In this case the fish moves and breathes which will result in a work on the environment.

Thermodynamic analysis is used to study the nature's most diversified energy change. Some of the methods of Thermodynamic analysis are pinch analysis, exergy analysis, second law analysis, and equipartition principles.

Therefore,  if the fish is considered as the system, it is an open system

To know more about open systems

https://brainly.com/question/12349841

#SPJ4

Answer: A gram of gold is worth about $25, so 2 grams or better would be viewed as high-grade for bulk tonnage mining.

Explanation:

i looked it up.

The coefficient of kinetic friction between the box and the floor is 0.11.

Coefficient of friction is a measure of the amount of friction existing between two surfaces.

The coefficient of kinetic friction between the box and the floor is calculated as follows;

F - Ff = ma

where;

F - μmg = ma

at a constant velocity, acceleration, a = 0

F - μmg = 0

F = μmg

μ = F/mg

μ = (52) / (50 x 9.8)

μ = 0.11

Thus, the coefficient of kinetic friction between the box and the floor is 0.11.

Learn more about coefficient of kinetic friction here: https://brainly.com/question/20241845

#SPJ1

Through a 484-w room heater that operates on 110 v ac power, the peak current would be 6.22A

The maximum amount of current that an output is capable of sourcing for brief periods of time is known as the peak current.

When an electrical device or power supply is turned on for the first time, a large initial current known as the peak current flows into the load, starting at zero and increasing until it reaches a peak value.

Peak current is the highest current present at any particular moment. On the other side, RMS currents are the average currents.

Io =?

Power = Vrms x Irms = 484

⇒ 484 = 110v x Io/ [tex]\sqrt{2}[/tex]

Io = (484 x [tex]\sqrt{2}[/tex]) / 110

Io = 6.22A

Thus, the peak current is 6.22A

To know more about peak current, visit:

https://brainly.com/question/28169133

#SPJ4

A control is the standard by which test variables can be compared.

An experiment is a test under controlled conditions made to either demonstrate a known truth, examine the validity of a hypothesis, or determine the efficacy of something previously untried.

In an experiment, controlling an experiment means designing an experiment so that the effects of one or more variables are reduced or eliminated.

A control is a separate group or subject in an experiment against which the results are compared.

Therefore, it can be said that a control is the standard by which test variables can be compared.

Learn more about control at: https://brainly.com/question/4444046

#SPJ1

Answer: TRUE

Explanation:

Answer:

Explanation:

.

Answer:

Acceleration due to gravity = g = 9.8 m/s²

Time to reach ground = t = 6 sec

Initial Velocity of the Rock = Vi = 0 m/s (Because, the rock will be at rest, initially)

Hope this answer helps you out!

The correct answer is 441 N.

The force that pulls objects toward the centre of the Earth is known as earth gravity. The acceleration of all the bodies that are affected by gravity is almost equal to the strength of the gravitational field.

The force exerted on an object by gravity is known as the weight of a body.

As a result, we can state that weight is only a force.

Given that the mass of a person on earth is = 45 kg

and that gravity's acceleration on earth is = 9.8 ms^2.

Weight, then, is defined as mass multiplied by the gravitational acceleration, or W = m × g.

W = 45 × 9.8

W = 441 N

Hence, the total weight on Earth will be 441 Newton.

To learn more about acceleration due to gravity refer the link:
https://brainly.com/question/17331289

#SPJ9

The measure of a force is known as the magnitude of the force. When two or more forces act on a body, the total sum of the forces acting on it is known as the magnitude of the resultant force.

In simpler terms, the sum of the total force is the resultant force.

The magnitude of the resulting forces can be calculated by

[tex]R = \frac{Couple}{Position}[/tex] where R is the resultant force.

Forces at

(a)  A and B

AB = 0.45m

R * (0.45m) = 12 N-m

R = [tex]\frac{12}{0.45}[/tex]

R = 26.66 N

(b)  B and C

BC = 0.24m

R * (0.24m) = 12 N-m

R = [tex]\frac{12}{0.24}[/tex]

R = 50 N

(c) A and C

AC = [tex]\sqrt{AB^{2} +BC^{2} }[/tex]

AC = [tex]\sqrt{(0.45)^{2} + (0.24)^{2} }[/tex]

AC = 0.51m

R * (0.51m) = 12 N-m

R = [tex]\frac{12}{0.51}[/tex]

R = 23.9 N

To know more about magnitude of the force,

https://brainly.com/question/14504032

#SPJ4