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2 years ago

Which characteristics describe a point charge

Physics

1 answer:

vazorg [7]2 years ago

5 0

Answer:

Explanation:

It takes up no space and acts uniformly on its surroundings.

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Simple level physics equation

goblinko [34]

deriiiiicccccckkkkkkkk mdddddds

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3 years ago

If the pressure of gas is doubled and its absolute temperature is quadrupled, the volume is what factor times the original?

Lapatulllka [165]

Answer:

Volume will increase by factor 2

So option (A) will be correct answer

Explanation:

Let initially the volume is V pressure is P and temperature is T

According to ideal gas equation $PV=nRT$ , here n is number of moles and R is gas constant

So $V=\frac{nRT}{P}$ ....................eqn 1

Now pressure is doubled and temperature is quadrupled

So new volume $V_{new}=\frac{nR4T}{2P}=\frac{2nRT}{P}$ ........eqn 2

Now comparing eqn 1 nad eqn 2

$V_{new}=2V$

So volume will increase by factor 2

So option (A) will be correct answer

8 0

3 years ago

Which quantities appear in the equation for the magnetic field component of an electromagnetic wave?

tankabanditka [31]

Answer:

The speed of light (c)

Explanation:

The equation that relates the magnetic field component of an electromagnetic wave the the electric field component of the wave is:

$E=cB$

where

E is the magnitude of the electric field component

B is the magnitude of the magnetic field component

c is the speed of light in a vacuum, whose value is

$c=3.0 \cdot 10^8 m/s$

Re-arranging the equation to solve for B, we find:

$B=\frac{E}{c}$

5 0

3 years ago

A 2 300-kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 3.00 m before coming into contact

Mashcka [7]

Answer:

433903.8 N

Explanation:

From work energy theorem, the total work done is equivalent to change in kinetic energy. Kinetic energy is depedant on speed and since pile drive finally comes to rest, then final velocity is zero. Also, its initial velocity is not given. Therefore, the sum of work due to gravity and beam equals to zero. Work due to gravity is product of mass of pile driver, acceleration due to gravity and height while work due to beam is a product of force and distance. Substituting the given values then

2300*9.81*3+(F*0.156)=0

F=-433903.84615384615384615384615384615384615 N

Approximately, the magnitude of force is 433903.8 N and it acts upwards

6 0

3 years ago

Once you have picked a standard by the very meaning of atandard it is invariable.

Dominik [7]

Answer:

düz devam sağa dön bı tane Kabe var

7 0

3 years ago