The farther apart the two objects, the weaker the gravitational attraction between them.
Honed I don’t know where the question is
Answer:
Induced emf, 
Explanation:
We have,
Number of turns in the coil, N = 40
Radius of coil, r = 3 cm = 0.03 m
The field increases from 0 to 0.75 T at a constant rate in a time interval of 225 s.
It is required to find the magnitude of the induced emf in the coil if the field is perpendicular to the plane of the coil. The induced emf is given by :

, is magnetic flux

So, the magnitude of induced emf is
.
Answer:
480N
Explanation:
A ball is moving a speed of 8 there fore it had to be add force opposite direction to the ball if it takes to rest. There for ball is subjected to deceleration. First we can find the deceleration
V = U + at
0 = 8 + a×10
a= 0.8 m /s²
Then we can apply newton's 2nd law to determine the force acted by legatos
F= ma
F= 600×0.8
= 480 N