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AlexFokin [52]
3 years ago
7

Evaluate the gravitational potential energy between two 5.00-kg spherical steel balls separated by a center-tocenter distance of

15.0 cm. (b) Assuming that they are both initially at rest relative to each other in deep space, use conservation of energy to find how fast will they be traveling upon impact. Each sphere has a radius of 5.10 cm.
Physics
1 answer:
navik [9.2K]3 years ago
7 0

Answer:

U = 8.30×10-⁹J

Explanation:

m1 = m2 = 5.00kg masses of the spheres

d = 15.0cm = 15×10-²m

r = 5.10cm = 5.10×10-²m

R = d + r = 15×10-² + 5.10×10-²

R = 20.10 ×10-²m = 0.201m

G = 6.67×10-¹¹Nm²/kg²

U = Gm1×m2/R = potential energybetween the spheres

U = 6.67×10-¹¹×5.00×5.00/0.201

U = 8.30×10-⁹J

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Answer:

The speed of the stone just before it hits the ground is 18.54 m/s

Explanation:

Given that,

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v = 18.54 m/s

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During a phase change, the temperature remains constant. obviously all the heat is used in phase transformation.
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What is latent heat? Group of answer choices Energy released when water evaporates. Energy hidden in water vapor in the air. Ene
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Answer:

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When changing from liquid to gas (for example when water evaporates), the heat necessary for this to happen is called latent heat of vaporization. The word latent means hidden, because a change in temperature is not perceived during the phase change, even when heat is being added, thus it is said that the heat is hidden or latent.

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