2 years ago

Suppose the initial kinetic energy and final potential energy in an experiment are both zero. What can you conclude?

1 answer:

5 0

Initially, the experiment has only potential energy (since total energy is the sum of kinetic and potential energy). And at the end, the experment has only kinetic energy.

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How many joules of work are done on a box when a force of 25 N pushes it 3 m?

Anika [276]

Answer:

75joules

Explanation:

Workdone = force x distance

workdone = 25 x 3

workdone = 75joules

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2 years ago

Consider horizontal parallel plates with a fixed potential difference. The upper plate has a voltage difference of 30 V with the

BlackZzzverrR [31]

relation between potential difference and electric field is given as

$E . d = \Delta V$

so here we know that

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So now when plates are separated to 4 cm distance carefully

the potential difference between them will change but the electric field between them will remain constant

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2 years ago

Why a body in uniform velocity is zero acceleration ?

seropon [69]

Uniform velocity means no Net force and therefore no acceleration. Acceleration only happens when the velocity changes.

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3 years ago

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ZanzabumX [31]

Answer:

Explanation:

There is no friction to stop you from moving BC you are in space, however you have a larger mass than the ball, so it takes more force to get you up to the same speed as the baseball. You will move in the opposite direction of the ball because you exerted force on the ball in one direction and therefore yourself in the opposing direction.

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2 years ago

What is one way you could reduce the friction between two surfaces

Vlad [161]

You could put ice, put it on wheels!

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3 years ago