Which of these does not have an electric charge?

neutron

proton

electron

atom

Given the potential on a spherical shell of radius R to be V (R, θ) = V0 cos θ, calculate V (r, θ) both inside and outside the shell.

When a mass is placed on a spring with a spring constant of 15 newtons per meter, the spring is compressed 0.25 meter. How much elastic potential energy is stored in the spring?

In soccer, When throwing in the ball for a throw-in a player may use one hand like a baseball throw? true or false

How does convection move the plates

The length covered by a body is found to be directly proportional to the square of time. What is the nature of acceleration?

What resultant force is needed to accelerate a train of mass 3.41000000 kg from rest to 15.0ms in exactly 20s

I to fall in love with someone or to at least get a boyfriend

Is rain falling a contact or noncontact force

How does a concave lens differ from a convex lens?

Which object has the greatest gravitational attraction?