A neutron has a mass of 2.92 × 10^-27

kg. Its de Broglie

wavelength is 1.3

A 1114-kg automobile moving with a speed of 27 m/s relative to the road collides with a 533-kg automobile initially at rest. If the two stick together, what is the velocity in m/s of the two cars after the collision according to an observer in a truck moving 10 m/s in the same direction as the moving cars?

The threshold wavelength

for photoelectric emission of a particular substance is 711 nm. What is the

work function (in eV)?

A fancy sports car passes

Big Ben at a speed of 0.92

A photon whose energy is 10.1 × 10^-15

J is scattered off an

electron at a 62

The light intensity

incident on a metallic surface with a work function of 7.1 eV produces

photoelectrons with a maximum kinetic energy of 1.7 eV. The frequency of the

light is doubled. Determine the maximum kinetic energy (in eV).

A spaceship moves at a

speed of 0.95

What is the maximum kinetic energy (in eV)

of a photoelectron emitted from a surface whose work function is 4.66 eV when

illuminated by a light whose wavelength is 210 nm?

The half-life of a muon is 1.8 μ

s. How fast is it moving relative to an observer who says its half-life

is 6.8

Two fireworks explode at

the same position on the 4th of July. A stationary observer notices that the

time interval between the two events was 2 seconds. A second observer flies

past the fireworks at a speed of 0.74