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Degger [83]
3 years ago
7

Gravitational potential energy is due to....

Physics
1 answer:
mote1985 [20]3 years ago
5 0

Answer:

A

Explanation:

I only think its A because of the gravity part...sorry im not good at explaining

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A motion sensor emits sound, and detects an echo 0.0115 s after. A short time later, it again emits a sound, and hears an echo a
Mekhanik [1.2K]

Answer:

1.17 m

Explanation:

From the question,

s₁ = vt₁/2................ Equation 1

Where s₁ = distance of the reflecting object for the first echo, v = speed of the sound in air, t₁ = time to dectect the first echo.

Given: v = 343 m/s, t = 0.0115 s

Substitute into equation 1

s₁ = (343×0.0115)/2

s₁ = 1.97 m.

Similarly,

s₂ = vt₂/2.................. Equation 2

Where s₂ = distance of the reflecting object for the second echo, t₂ = Time taken to detect the second echo

Given: v = 343 m/s, t₂ = 0.0183 s

Substitute into equation 2

s₂ = (343×0.0183)/2

s₂ = 3.14 m

The distance moved by the reflecting object from s₁ to s₂ = s₂-s₁

s₂-s₁ =  (3.14-1.97) m = 1.17 m

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3 years ago
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What three factors control the path of a surface current
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Answer:

Surface currents are controlled by three factors: global winds, the Coriolis effect, and continental deflections. surface create surface currents in the ocean. Different winds cause currents to flow in different directions. objects from a straight path due to the Earth's rotation.

Explanation:

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To boil water it requires heat , what happens to the heat when the water cools down as energy can neither be destroyed nor be cr
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Answer:

Explanation:

The water particles just flow through each other. They cannot be destroyed nor created.

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In facts about Plastics, Explorer how the economy (the way materials are made, sold, and bought) is affected by using and produc
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