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Vladimir79 [104]
3 years ago
6

How do we know gravity is a field force?

Physics
1 answer:
Papessa [141]3 years ago
7 0

Answer:

NOME  DEJACRESIBIR A QIU

Explanation:

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The force between charged objects decreases when their separation ..... A)increase<br> B)decrease
weqwewe [10]
Answer A: When their separation increases.

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6 0
2 years ago
A magnetic field is decreasing in strength. According to Lenz's law, what prediction can be made about the magnetic field it ind
lesya692 [45]

Answer:

Did you ever get the answer?

Explanation:

8 0
3 years ago
If a 5kg ball is rolling to the left and has a momentum of -25kg*m/s what is the velocity (not just speed) of the ball
Anna71 [15]

Answer:

The velocity of the ball is 5 m/s to the left.

Explanation:

-25kg*m/s divided by 5 kg gives

speed of -5 m/s

The velocity of the ball is 5 m/s to the left.

5 0
3 years ago
Use newton's laws to find an expression for the net external force acting on the car. ignore air resistance.
alexira [117]
Hi, thank you for posting your question here at Brainly.

Newton's second law of motion can be expressed as Fnet = ma. The next external for acting on, say for example, a moving car are the following:

*weight due to gravity (force down)
*friction force between he road and the car's tires (force opposite the car's direction)

4 0
3 years ago
The half-life of a certain isotope is 15 minutes. How much of a 400 g sample will remain after 90 minutes?12.5 g6.25 g26.7 g66.7
Virty [35]

There is a total of 6 half lives that need to take place.


ONE HALF LIFE = 200

TWO HALF LIFES = 100

THREE HALF LIFES  = 50

FOUR HALF LIFES = 25

FIVE HALF LIFES = 12.5

SIX HALF LIFES = 6.25


The answer is 6.25g



4 0
3 years ago
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