The ping pong ball was stopped because it lost its kinetic energy as it was made of plastic. The wooden ball gained the kinetic energy from the desk as it was also made out of wood.
That's my reasoning, Hope it is correct!
Answer:
Explanation:
To calculate the force we need to use this equation
where L is the total length of the wire
So in this case the small element of current is
Because x is the direction of the current flow.
As is said in the problem B is such that
so to use the equation above we first calculate the following cross product:
so the force:
So here we use the fact that B=0 in any point of the x axis that is not , that means that we only need to do the integration between a very short distant behind the point and a very short distant after that point, meaning:
so is the same as evaluating at
that is:
Hi how has your day been going?
Answer: Musical theater is like acting in a musical.
Explanation: Other dance styles don't involve singing.
Answer:
Centripetal acceleration does not change speed but it changes direction as it is a single thing moving in a circular path. Most accelerations, like linear acceleration, cause things to move in a straight line. But, both centripetal and angular acceleration are vectors.