Answer: The box was moving with a velocity of 0.256m/s when it hit the spring
Explanation: Please see the attachments below
Answer:
Yes
Explanation:
Yes. The momentum is the same when the speed of the tennis ball is 18 times greater than the speed of the basketball and the velocities of both objects are in the same direction.
I totally agree but, in my opinion its because of the government and what the state has control over. Teacher have little control over it.
The most common metals used for permanent magnets are iron, nickel, cobalt and some alloys of rare earth metals
