Answer:d
Explanation:
Probably becuase it is further than Saturn
It takes like 70 years to go around the sun
And it is bigger than the moon
Answer:
A perfectly elastic collision conserves momentum and kinetic energy..
You can usaly not feal it because the earth is moving and the plates aren't having any major change to the movement.
p = mv so this question pertains to conservation of momentum.
The momentum of the car is 1320*12 = 15840kgms^-1
For the sake of easiness and the fact negatives are annoying, I will assume east to be positive.
So we know 9.4m - 15840 = (1320+m)*1.5
9.4m - 15840 = 1980+1.5m
Rearranging to solve for m
7.9m = 17820
m = 2255.70 = 2300kg to 2sf
Answer:

Explanation:
Let assume that floor is horizontal. By definition, the force of friction is less or equal to the maximum static friction force. That is to say:

The maximum friction force is:


By applying Newton's law, the box has the following physical model:

Where:

Real friction is equal to 50 N, which is less than maximum friction force. Therefore, the static friction on the box is:
