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Molodets [167]
3 years ago
6

a 15 kg television sits on a shelf at a height of 0.3 m how much graviitional potential energy is added to the television when i

t is lifted to a shelf of height 1.0m
Physics
1 answer:
Readme [11.4K]3 years ago
5 0
15x 9.8 x .3 = 44.1
15 x 9.8 x 1 = 147
147 - 44.1 = 102.9J
102.9 J
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now we have

\omega^2 R = 34.1

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so the ratationa frequency is given by

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7 0
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earnstyle [38]
<span>A portion of the atmosphere that becomes warmer than surrounding air will expand and rise. The warmer atmosphere the more space between the molecules. Therefore, warmer atmosphere </span><span>expands to allow more space for the molecules. Cool air on the other hand, contracts because the molecules in cool air need less space.</span>
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When an athlete holds a barbell overhead, the reaction force is the weight of the barbell on his hand. how does this force vary
Sonja [21]
The force applied by the competitor is littler than the heaviness of the barbell. At the point when the barbell quickens upward, the power applied by the competitor is more prominent than the heaviness of the barbell. When it decelerates upward, the power applied by the competitor is littler than the heaviness of the barbell.
3 0
3 years ago
A car was moving at 14 m/s After 30 s, its speed increased to 20 m/s. What was the acceleration during this time ( need help fas
Arada [10]

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Explanation:

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Answer:

Explanation:

Its definitely an Attractive force since the two charges are Unlike.

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6 0
2 years ago
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