Physics

Questions and Answers

Why do some tiles sound hollow and others not on the same floor?

Questions and Answers

How does weak gravity affect the origin of life?

Questions and Answers

How come we can create a parallel laser beam?

Questions and Answers

Can one use Delta E.Delta t greater than or equal to h/4pi in quantum mechanics?

Questions and Answers

An electron has a -charge and a proton a +charge. What should I imagine with this?

Questions and Answers

Does information disappear or change when two photons collide?

Questions and Answers

What is the relationship between the velocity of a lead bullet fired by an air rifle and the energy of this bullet (in Joules)?

Questions and Answers

How do you calculate the amount of energy required to reach a certain speed?