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Dimas [21]
2 years ago
12

An elephant kicks a 2.5 kg rock that is initially at rest. The

Physics
1 answer:
erma4kov [3.2K]2 years ago
6 0

0.20Answer:

Explanation:

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An object moving at a velocity of 32 m/s slows to a stop in 4 seconds. What was its acceleration
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Answer:

8

Explanation:

Because you divide 32/4 which gives you 8.

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3 years ago
Which of the following units are the Standard International units for
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The answer is A. meters (m)
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2 years ago
What is the meaning of physics​
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3 years ago
Halley's comet orbits the sun roughly once every 76 years. It comes very close to the surface of the Sun on its closest approach
Licemer1 [7]

Answer:

r1 = 5*10^10 m , r2 = 6*10^12 m

v1 = 9*10^4 m/s

From conservation of energy

K1 +U1 = K2 +U2

0.5mv1^2 - GMm/r1 = 0.5mv2^2 - GMm/r2

0.5v1^2 - GM/r1 = 0.5v2^2 - GM/r2

M is mass of sun = 1.98*10^30 kg

G = 6.67*10^-11 N.m^2/kg^2

0.5*(9*10^4)^2 - (6.67*10^-11*1.98*10^30/(5*10^10)) = 0.5v2^2 - (6.67*10^-11*1.98*10^30/(6*10^12))

v2 = 5.35*10^4 m/s

3 0
3 years ago
Urgent need help 100 points
Sati [7]

Answer: The velocity with which the sand throw is 24.2 m/s.

Explanation:

Explanation:

acceleration due to gravity, a =  3.9 m/s2

height, h = 75 m

final velocity, v = 0

Let the initial  velocity at the time of throw is u.

Use third equation of motion

The velocity with which the sand throw is 24.2 m/s.

7 0
2 years ago
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