lf Ray of light is incident from air at an angle of 40degrees to the surface of water find..1.angle of incidence 2.angle of refraction 3.angle of deviation ​

Aproton is projected toward a fixed nucleus of charge +ze with velocity vo. initially the two particles are very far apart. when the proton is a distance r from the nucleus its velocity has decreased to 1/2vo. how far from the nucleus will the proton be when its velocity has dropped to 1/4vo?

Match each scenario to the form of energy it represents

Convection occurs when thermal energy is transferred by the movement of