Two shuffleboard disks of equal mass, one orange and
the other yellow, are involved in an elastic collision.
The yellow disk is initially at rest and is struck by the
orange disk moving initially to the right at 5.00 m/s.
After the collision, the orange disk is at rest. What is
the velocity of the yellow disk after the collision?

Asun-sized star will spend most of its lifetime as a: white dwarf red giant protostar main-sequence star

Amodel rocket with a mass of 0.212 kg is launched into the air with an initial speed of 84 m/s. how much kinetic energy will the rocket have at a height of 214 m? assume there is no wind resistance. 634 j 303 j

The nuclear potential that binds protons and neutrons in the nucleus of an atom is often approximated by a square well. imagine a proton conned in an innite square well of length 105 nm, a typical nuclear diameter. calculate the wavelength and energy associated with the photon that is emitted when the proton undergoes a transition from the rst excited state (n 2) to the ground state (n 1). in what region of the electromagnetic spectrum does this wavelength belong?