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krok68 [10]
3 years ago
11

A ball is dropped from a 150-m tall building. Neglecting air resistance, what will the speed of the ball be when it reaches the

ground 5.5 seconds later?
Physics
1 answer:
Lerok [7]3 years ago
7 0
54 m/s is the answer
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The Law of Universal Gravitation states that gravity is___ proportional to the product of the two
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The Astronomer Carl Sagan is famous. Why?
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Mainly because he was Johnny Carson's advisor and consultant
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What is the kinetic energy of a 2,000-kg boat moving at 5.0 m/s?
vlada-n [284]

Answer:

25kJ

Explanation:

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3 years ago
The most energy-efficient way to send a spacecraft to the Moon is to boost its speed while it is in circular orbit about the Ear
jeyben [28]

Answer:

98.33 %

Explanation:

On an elliptical orbit, angular momentum will be conserved .

Angular momentum = I ω = mvR

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v₁ /v₂ = R₂ / R₁  = 60

v₂ / v₁ = 1 / 60

1 - (v₂ / v₁ ) = 1 -( 1 / 60)

(v₁ -v₂)/v₁ = ( 60-1 )/60

(v₁ -v₂)/v₁ x 100 = 5900/60 = 98.33 %

5 0
4 years ago
고체와 액체 사이의 회색 영역에서는 어떤 일이 발생합니까?
Marianna [84]

Answer:

From liquid to solid or to solid or liquid the transition has to cross the grey zone.

Explanation:

hope it helps<

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