What items are inside the nucleus?

Protons

Protons and Electrons

Electrons and Neutrons

Protons and Neutrons

What happens to the light rays when they hit the specimen?

Curious carl calculated the density of a cube to be 4.50 g/cm3. what is the density of the cube in g/l?

Two cannon balls weighing 18 kg and 24 kg are chained together and fired horizontally with a velocity of 165 m/s from the top of a 21-m wall. the chain breaks during the flight of the cannonballs and the 18-kg cannonball strikes the ground at t = 1.5 s, at a distance of 240 m from the foot of the wall, and 7 m to the right of the line of fire. determine the position of the other cannonball at that instant. neglect the resistance of the air.