Light
What is a particle of light carrying energy?
Photon
A mercury atom emits a photon when an electron in the atom moves from energy level f to energy level d. Determine the energy of the emitted photon, in electronvolts.
2.27eV
An antimuon neutrino is a: (1) lepton with a −1e charge; (2) lepton with 0 charge; (3) meson with a −1e charge; (4) meson with 0 charge
(2) lepton with 0 charge
If 0.001 kg of mass is converted entirely to energy, how much energy is released?
9.0×10^13 J
A 600.-newton student pushes on a vertical wall for 20.0 seconds with a constant force having a magnitude of 100. newtons. What is the magnitude of the force that the wall exerts on the student?
100. N
When light shines on a metal, electrons can be ejected from the surface. What is the name of this phenomenon?
Photoelectric Effect
Determine the amount of energy, in electronvolts, that must be absorbed by a hydrogen atom to excite the atom from the n = 1 energy level directly to the n = 4 energy level.
12.75eV
A neutron is made up of the following quarks.
up, down, down quark
A nuclear reactor produces 2.7*10^16 joules of energy per year. How much mass is converted to energy by the reactor in one year?
0.30 kg
How much energy is expended when a current of 5.00 amperes is in a 5.00 ohm resistor for 5.00 seconds?
625 J
What is the type of electromagnetic radiation which would contain photons each having an energy of 2.65 × 10^-20 joule?
Infrared radiation
The minimum amount of energy needed to ionize a mercurcy atom in the n = c state.
What is 5.52 eV?
What is the charge of a strange quark in coulombs.
-5.33 x 10^-20 C?
What is the energy equivalent of 2.5 x 10^-3 kilograms.
2.25 x 10^14 J?
A tuning fork is used to produce a sound wave having a frequency of 512 hertz. What is the wavelength of the sound wave in air at STP?
0.646 m
What is energy of a photon with a wavelength of 4.8 x 10^-7 meters.
4.14 x 10^-19 J
Determine the energy in joules of the emitted photon as an electron in a hydrogen atom drops from the n = 4 state to the ground level.
What is 2.04 x 10^-18 J?
What is the sign and magnitude of the net charge, in coulombs, of a particle that has a quark composition of bbb.
−1.60×10^-19 C?
What is the energy equivalent to the rest mass of an electron?
8.2 x 10^-14 J?
An amplified sound wave produced by an opera singer shatters a glass. Which phenomenon best explains this event?
Resonance
What determines the energy of a photon?
Frequency
Calculate the frequency of an absorbed photon that results in an electron in a mercury atom change from energy level d to e.
2.99 x 10^14 HZ
The force responsible to holding the nuclei of atoms together.
Strong force
A deuteron is formed by combining a proton and a neutron. The mass of a deuteron is 2.39 x 10^-3 universal mass unit less than the combined masses of a proton and a neutron. This mass difference is equivalent to
2.23 MeV
A particle with a charge of +3.0 nanocoulombs is placed in an electric field with a magnitude of 1500 newtons per coulomb. What is the magnitude of the electrostatic force exerted on the particle by the electric field?
4.5 * 10^-6 N