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Masja [62]
4 years ago
7

Why earth have gravity?

Physics
1 answer:
Yuki888 [10]4 years ago
4 0

On earth there is a force within the planet. This force creates a sort of magnet to keep the planet's being and thing on it together. This force also has a role in the solar system as it helps it move.

The source: https://spaceplace.nasa.gov/what-is-gravity/en/

Hope i helped

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What is the velocity of a motercycle traveling 13 km west in 3 hours
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Read 2 more answers
PLS HELP ASAP WILL MARK BRAIN and pls explain your answer....
lora16 [44]

Answer:

it is sublimation because There are three ways heat is transferred into and through the atmosphere:

radiation.

conduction.

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Explanation:

please mark me as brainliest as you wrote over there

5 0
3 years ago
Chris and Sue are wearing harnesses and are hanging from the ceiling by means of ropes attached to them. They are face to face a
Setler [38]

Answer:

h = 0.288m

Explanation:

Assume

v_1 = Speed of Sue

v_2 = Speed of Chris immediately after the push

Sue's KE = \frac{1}{2} mv_1\ ^2 = 26 v_1 \ ^2

now she swings this is converted into gravitation at PE of

mg n = 52 × 9.8 × 0.65  

= 331.24

26v_{1}\ ^2 = 331.24

So, v_1 = 3.569

They started at rest by conservation of momentum in case of push off the magnitude of sue momentum and it is equal to the magnitude of Chris momentum in the opposite or inverse direction

m_1v_1 = m_2v_2

52 \times 3.569  = 78 \times v_2

v_2 = 2.380

Chris kt = \frac{1}{2} \times 78 \times 2.380^2

= 220.827

220.827 = mgh

So, h = 0.288m

3 0
3 years ago
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