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MAVERICK [17]
3 years ago
7

Can you please help me?

Physics
1 answer:
marusya05 [52]3 years ago
5 0

Answer:

1,960 J

Explanation:

PE = mgh

PE = (1)(-9.8)(-200)

PE = 1,960

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1
Darina [25.2K]

Answer:

7.5 x 10⁻⁸N

Explanation:

Given parameters:

Mass 1  = 60kg

Mass 2  = 75kg

Distance between the bodies  = 2m

Unknown:

Gravitational fore  = ?

Solution:

The gravitational force between the two bodies can be derived using;

  F  = \frac{G mass 1 x mass 2}{distance^{2} }  

    G is the universal gravitation constant  = 6.67 x 10⁻¹¹m³kg⁻¹s⁻²

Insert the parameters and solve;

  F  = \frac{6.67 x 10^{-11}  x 60 x 75}{2^{2} }   = 7.5 x 10⁻⁸N

3 0
3 years ago
A ball starts from rest and undergoes uniform acceleration of 2.50m/s^2. What is the velocity of the ball 4s later?
erica [24]

Explanation:

Given:

v₀ = 0 m/s

a = 2.50 m/s²

t = 4 s

Find: v

v = at + v₀

v = (2.50 m/s²) (4 s) + 0 m/s

v = 10 m/s

4 0
3 years ago
Read 2 more answers
If a swimmer pushes off a pool wall with a force of 250n, what is her acceleration.
grigory [225]

Her acceleration is

           (250) divided by (the swimmer's mass, in kilograms).

The unit is " meters per second² " .

3 0
3 years ago
You are given the speed of a wave and it's period. What kind of information can you also find out about this wave?
ozzi
Its frequency because you already found out its speed & period 
5 0
4 years ago
How does light interact with the fur of a black cat?
Rina8888 [55]

The answer is C

The colour that you see is what is being reflected and the colour that you don't see is what is being absorbed. In this case, you don't see any colour, so all wavelengths are being absorbed.

6 0
3 years ago
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