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Eddi Din [679]
2 years ago
7

The Earth's _____

Physics
2 answers:
-BARSIC- [3]2 years ago
5 0

Answer: 2nd option, Rotation

<em>I hope this helps, and Stay Safe! :)</em>

fenix001 [56]2 years ago
4 0

Answer:

rotation

Explanation:

............................

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Pls do question 1 part d). tysm
Aneli [31]

Answer:

c

Explanation:

cuz its informing the length of 5 and weight on 20N

5 0
3 years ago
A rocket ship is accelerating at 200 m/s2, its mas is 135,000,000 kg. What is the force generated by this acceleration?
Rina8888 [55]

Acceleration does NOT "generate" force.  Acceleration NEEDS force to make it happen.  Without force ... provided by something else ... acceleration can't happen.

The force NEEDED to accelerate a mass with a certain acceleration is

Force needed = (mass) times (acceleration)

For the rocket ship in the question,

Force = (135,000,000 kg) times (200 m/s²)

Force = (135,000,000 x 200) kg-m/s²

<em>Force = 27 Giga-Newtons  </em>(27,000,000,000 Newtons)


The gas-generator cycle F-1 rocket engine, developed in the US by Rocketdyne in the late 1950s, was used in the Saturn V rocket, the main launch vehicle of NASA's Apollo moon lander program .  Five F-1 engines were used in the first stage of each Saturn V.  

==> The thrust of each F-1 engine at full throttle is 7,770 kilo-Newtons.  

It would take <em>3,475 </em>of these F-1 rocket engines, running full-throttle, to provide the force calculated in the answer to this question.  If you didn't have 3,475 F-1 rocket engines, then you couldn't accelerate 135,000,000 kg at 200 m/s².

(And by the way ... the mass of each F-1 engine is 8,400 kg.  So 3,475 engines alone account for 22% of the mass you're trying to accelerate.  And don't even get me started about the mass of the FUEL you'd need to carry.)

5 0
3 years ago
Which law of motion accounts for the following statement? "A ball hit by a man travels faster than one hit by a boy."
kifflom [539]

A ball hit by a man is stronger than a ball hit by a man because the man uses more force when hitting the ball than the boy does.

5 0
3 years ago
Read 2 more answers
an experiment is designed to see if the shells of sea snails are weakened by exposure to sea water which is more acidic than nor
Naily [24]
Since the statement of the problem is to determine if levels of acidity in sea water affect the strength of a sea snail's shell, then the best statement of hypothesis should be:

"<span> if the shells are affected by the level of acidity, then they will be weaker.</span>"

That hypothesis refers directly to the theory being questions in the problem.

7 0
3 years ago
A hospital has a back-up generator to power the medical devices in case of a
creativ13 [48]

Answer:

C

Explanation:

5 0
3 years ago
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