Asled is at rest at the top of a 2 m high slope. the sled has a mass of 45 kg. the sled's potential energy is j. (formula: pe = mgh)

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You gave us just about everything we need, including the formula.

mass (m) = 45 kg

gravity (g) = 9.8 m/s²

height (h) = 2 meters

PE = m · g · h

PE = (45 kg) · (9.8 m/s²) · (2 meters)

PE = (45 · 9.8 · 2) kg · m² /s²

PE = 882 Joules

882 J

Explanation:

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.

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explanation:

physics means: "the branch of science concerned with the nature and properties of matter and energy. the subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms."