3 years ago

What causes the weight of an object to change depending on if it is on Earth or the Moon?

Physics

1 answer:

Gnoma [55]3 years ago

7 0

The acceleration due to gravity

Brainliest please

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A car acquires a velocity of 72km/h in 10sec starting from rest .find it's

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Distance travelled.

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4 years ago

Suppose a vacuum cleaner uses 120 J of electrical energy is 45 J are used to pull air into the vacuum cleaner how efficient is t

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Very efficient because it uses less then half to do the action then the vacuum actually stores.

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4 years ago

A ball is droped from a height of 16m how much time will pass before the ball hits the ground

sergey [27]

Answer:

The time is 1.8s

Explanation:

The ball droped, will freely fall under gravity.

Hence we use free fall formula to calculate the time by the ball to hit the ground

$h= \frac{1}{2}g{t}^{2}$

Where h is the height from which the ball is droped, g is the acceleration due to gravity that acted on the ball, and t is the time taken by the ball to hit the ground.

From the question,

h=16m

Also, let take

$g = 9.8m{s}^{-2}$

By substitution we obtain,

$16= \frac{1}{2}\times 9.8{t}^{2}$

$\implies32=9.8{t}^{2}$

Diving through by 9.8

$\frac{32}{9.8}= \frac{ 9.8{t}^{2} }{9.8}$

$\implies{t}^{2} =3.265$

square root both sides, we obtain

$\implies t= \sqrt{3.265}$

$t=1.8s$

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4 years ago

Which is an advantage of conducting an experiment in a laboratory?

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Answer is a hope this helps

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3 years ago

Thermal effects refers to the:

lesya [120]

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removal of heat by cooling towers

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