2 years ago

Which one of the following accurately describes the force of gravity?

Physics

1 answer:

Aloiza [94]2 years ago

4 0

B. The gravity acceleration is in the same direction as the force of gravity, and thus towards the centre of the earth

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Which of the following did not occur during the collapse of the solar nebula?

vaieri [72.5K]

If this is one of the following, it's correct
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2 years ago

A bowling ball with a mass of 8 kg is moving at a speed of 5 m/s. What is its<br> kinetic energy?

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Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 1.60×106 N, one at an angle 13.0 west of north, an

Juliette [100K]

Answer: $W=1.93\times 10^9 J$

Explanation:

Given

Force $F=1.6\times 10^{6} N$

one at an angle of $13^{\circ}$ East of North and another at $13^{\circ}$ West of North

Net Force is in North Direction

$F_{net}=2F\cos 13$

Forces in horizontal direction will cancel out each other

thus Work done will be by north direction forces

$W=2F\cdot \cos 30\cdot s$

here $s=0.7 km$

$W=2\times 1.6\times 10^{6}\cdot \cos 30\cdot 700$

$W=1.93\times 10^9 J$

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3 years ago