We Know, F = Gm₁m₂ / r²
When, distance is doubled, it would be:
F' = Gm₁m₂ / (2r)²
F' = Gm₁m₂ / 4r
So, we can see, Force has decreased by 4 times.
Hope this helps!
If i thought about this properly the answer is b
Answer:
F= 1.6
Explanation:
Given:
m =0.1 gram = 0.1 / 1000 Kg = 0.0001 kg
a = 15.8 m/s²
To Find: Force F = m a
F= 0.0001 kg × 15.8 m/s²
F= 0.00158 N
F= 1.58 × 10 ⁻³ N
F= 1.6 mN
If I am correct a <span>child holds a toy above her head and then lets it fall to the ground. </span>
Answer:

Explanation:
= Refractive index of glass = 1.5
= Speed of light in vacuum = 
Refractive index is given by

The speed of light in the glass is
.