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lubasha [3.4K]
2 years ago
14

HELP ME PLEASE!!!!

Physics
1 answer:
Anna35 [415]2 years ago
7 0

Answer: B

Explanation:

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An 80-kg hiker climbs to the top of a tall hill and builds up 470,000 J of gravitational potential energy. How high did the hike
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Answer:

599 meters is the answer rounded to the nearest whole number and 599.489795918 meters is the complete answer

Explanation:

to find gravitational potential energy you multiply mass x acceleration due to gravity (always 9.8 on earth) x hight

since we know the gravitational potential energy and want to find out the hight, we take the gravitational potential energy (470,000) and divide it by the product of acceleration due to gravity x mass (9.8 x 80)

so how high the hiker climbed is equal to 470,000 divided by (9.8 x 80)

hight = 470,000 / (9.8 x 80)

hight = 470,000 / 784

hight = 599.489795918 meters

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A 1.0 kg rock is thrown straight upward with an initial speed of 8.0 m/s. What is its speed
Ronch [10]

Answer:5.7m/s

Explanation:

Mass=1kg

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v^2=8^2-2x9.8x1.6

v^2=8x8-2x9.8x1.6

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Speed at the height of 1.6m is 5.7m/s

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What is the gravitational relationship between two objects?
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