C. A copper atom has 29 protons and 31 electrons, what is the overall charge of the copper atom?

Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied. true or false

Asmall grinding wheel has a moment of inertia of 4.0×10−5 kg⋅m2 . what net torque must be applied to the wheel for its angular acceleration to be 150 rad/s2 ?

Which of the the following are examples of projectile motion of both projectile motion and two dimensional motion