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vivado [14]
3 years ago
5

How much work is done by moving a 20kg object 20m using a force of 100 newtons parallel to the direction of motion?

Physics
1 answer:
ss7ja [257]3 years ago
5 0

Answer:2000J

Explanation: just a formula

W =Fdcos(a)= 100*20*cos(0°)= 2000J

remember that the angle is 0° that is force acting along the movement

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3 years ago
What is the distance between a 900 kg compact car and a 1600 kg pickup truck if the gravitational force between them is about 0.
elena-14-01-66 [18.8K]

Answer:

The distance is 0.96m

Explanation:

Given

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Required

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Step two:

the formula for the force is given as

F = Gm1m2/r2

make r subject of the formula

r= \sqrt{\frac{Gm1m2}{F} }

r= \sqrt{\frac{6.67430*10^-11*900*1600}{0.0001} }\\\\r= 0.00009610992/0.0001`}\\\\r= 0.96m

Answer:

The distance is 0.96m

Explanation:

Given

m1= 900kg

m2= 1600kg

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G=6.67430*10^-11 Nm^2/kg^2

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Step two:

the formula for the force is given as

F = Gm1m2/r2

make r subject of the formula

r= \sqrt{\frac{Gm1m2}{F} }

r= \sqrt{\frac{6.67430*10^-11*900*1600}{0.0001} }\\\\r= 0.00009610992/0.0001`}\\\\r= 0.96m

3 0
3 years ago
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<h3>Where is the Earth's and the moon's gravitational centre?</h3>

It is around 1700 kilometres below Earth's surface.

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6 0
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It expands due to heat and makes it easier to open the jar.<span />
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