A bullet travelling at 300m/s strikes a block and it penetrates to a depth 0.11m. If the mass of the bullet is 1.8g. (a) in what time does the the bullet comes to rest? (b) what is force does the wood exert n the bullet?​

The human body stores chemical energy from digested food. some of the chemical energy is converted into mechanical energy when the body moves. which statement best supported by this information

An isotope undergoes radioactive decay by emitting radiation that has a –1 charge. what other characteristic does the radiation have?

Two 2.0-cm-diameter disks face each other, 1.0 mm apart. they are charged to ±10 nc. what is the electric field strength between the disks? a proton is shot from the negative disk toward the positive disk. what launch speed must the proton have to just barely reach the positive disk?