Physics

Questions and Answers

How can you show that Newton’s third law holds in all inertial frames?

Questions and Answers

Does a human body weigh less after death (since the blood no longer flows)?

Questions and Answers

Does an empty diver’s cylinder weigh as much as one filled with compressed air?

Questions and Answers

Why is a piece of wood of -20 degrees not a problem to tackle and a piece of iron of -20 a problem, because...

Questions and Answers

Where does a rope get its strength from?

Questions and Answers

What is the relationship between work and energy?

Questions and Answers

Can energy be converted into matter as matter can be converted into energy, and how?

Questions and Answers

In cycling races in which two (or more) riders pass the finish line almost simultaneously, you see these riders ‘push forward’ at the very...