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icang [17]
3 years ago
15

The force of gravity is an inverse square law. this means that, if you double the distance between two large masses, the gravita

tional force between them weakens by a factor of ___________.
Physics
1 answer:
Nadya [2.5K]3 years ago
4 0
F~1/r²
weakens by 1/4
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According to Faraday's law, voltage can be changed by moving magnets away from the coil of wire. True False
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The statement: “According to Faraday's law, voltage can be changed by moving magnets away from the coil of wire.”, is true. Any type of movements done (away, into or out, toward, rotation, etc.) on the magnetic environment would always generate a voltage. In Faraday’s law, it is clear that there are different ways on how to generate a voltage.
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Which of the following statements about atoms is true?
anastassius [24]
<span>The atoms are grouped thus forming molecules. Each type of molecule is the combination of a certain number of atoms linked between them and in a specific way, whenever a molecule can contain atoms of different elements or of the same. And that in turn, Each atom retains its structural characteristics, beyond that they are part of different molecules because during the chemical reactions the atoms cannot be created or destroyed, but they are organized in a different way creating links between an atom and another.</span>
6 0
3 years ago
If the speed of sound is approximately 671 mi/hr, about how many meters per second is it? (1mile=1609m)
zzz [600]
671mi/hr

= 671/60min (calculates miles/min)
= (671/60) ÷ 60seconds (calculates miles/sec)

((671/60) ÷ 60)× 1609m
= 299.899 meters/sec
= 299.90m (round off to 2 decimals )
3 0
3 years ago
A powerful missile reaches a speed of 5 kilometers per second in 10 seconds after its launch. What is the average acceleration o
AveGali [126]

Average acceleration  =  (change in speed)  /  (time for the change)

The missile's change in speed is  (5,000 - 0)  =  5,000 m/s

Average acceleration  =  (5,000 m/s)  /  (10 sec)

                                 =      500 m/s²       (about  51 Gs)

Inconveniently, this isn't one of the choices on the list. Is there something wrong, either with the choices or with my solution ?

No. Relax. Everything is OK.

500 meters is the same thing as 0.5 kilometer.  So my answer can also be written as  0.5 km/s² .  That doesn't change anything, and it IS one of the listed choices.

The average acceleration is <em>0.5 km/sec²  (d)</em> .

4 0
3 years ago
Read 2 more answers
The diagram shows a ramp with a toy car at the bottom. A string attached to the front of the car and the string goes over a pull
Annette [7]

The answer would be Gravity.

Gravity is pulling the weight down, which is pulling the car up the ramp.

3 0
3 years ago
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