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Lorax
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Last Homework questions of the year! whoo! I'm having troubles with these so if you could help me out. I'm working on the bottom to the top, so if you want to help, help with 116 and down.
116. A proton travels through a magnetic field at the speed of 6.3 x 10^4 m/s perpendicular to the field. If the radius of the arc pf the deflected proton is 7.20x10^-3, what is the magnetic field strength?
122. A proton moves through a 0.06 T magnetic field in a circle with aradius of 0.30 m. What is the momentum of this proton?
124. What is the wavelength of a photon that has energy of 2.10eV
128. Electrons are ejected from a photoelectric surface with a maximum speed of 3.8 x 10^5 m/s. If the work function of this surface is 2.55 eV, what is the wavelength of the incident light?
130. What is the operating potential of an x-ray tube if photons with a maximum energy of 6.43x10^-15 J are produced?
140. An Electron endergoes a transition from the 6th energy level to the 2nd energy level in a hydrogen atom. What is the frequency of the light emitted?
145. What orbit (n value) in a hydrogen atom has a radius of 1.90 x 10^-19
146. If the momentum of a photon is 8.6 x 10 ^ -22 kg m/s what is its speed?
148. Calculate the wavelength of an electron that has kinetic energy of 6.25x10^-3 MeV.
164. Write the nuclear reaction for the alpha decay of uranium - 238.
165. Write the nuclear reaction for the beta decay (emission of an electron by the nucleus) of cobalt 60.
180. If the binding energy of lithium -6 (6/3Li) nucleus is 4.9118 x 10 ^-12 J, what is the mass of the nucleus? (mass of proton = 1.6726 x 10^-27 kg, mass of a neutron = 1.6749 x 10 ^-27 kg)
116. A proton travels through a magnetic field at the speed of 6.3 x 10^4 m/s perpendicular to the field. If the radius of the arc pf the deflected proton is 7.20x10^-3, what is the magnetic field strength?
122. A proton moves through a 0.06 T magnetic field in a circle with aradius of 0.30 m. What is the momentum of this proton?
124. What is the wavelength of a photon that has energy of 2.10eV
128. Electrons are ejected from a photoelectric surface with a maximum speed of 3.8 x 10^5 m/s. If the work function of this surface is 2.55 eV, what is the wavelength of the incident light?
130. What is the operating potential of an x-ray tube if photons with a maximum energy of 6.43x10^-15 J are produced?
140. An Electron endergoes a transition from the 6th energy level to the 2nd energy level in a hydrogen atom. What is the frequency of the light emitted?
145. What orbit (n value) in a hydrogen atom has a radius of 1.90 x 10^-19
146. If the momentum of a photon is 8.6 x 10 ^ -22 kg m/s what is its speed?
148. Calculate the wavelength of an electron that has kinetic energy of 6.25x10^-3 MeV.
164. Write the nuclear reaction for the alpha decay of uranium - 238.
165. Write the nuclear reaction for the beta decay (emission of an electron by the nucleus) of cobalt 60.
180. If the binding energy of lithium -6 (6/3Li) nucleus is 4.9118 x 10 ^-12 J, what is the mass of the nucleus? (mass of proton = 1.6726 x 10^-27 kg, mass of a neutron = 1.6749 x 10 ^-27 kg)