Hello. Please help me answer some questions. Please refer to the attached image. Thanks!

1. What 1s the mass of the following particles when traveling at a speed of 0.86c: (a) electron, (b) proton, and () neutron? Hint: mass of electron = 9.11*107! kg; mass of proton = 1.67*10?7 kg and mass of neutron = 1.673%10 kg 2. A particle has a lifetime of 0.100 s when observed while it moves at a speed of 0.650 with respect to the laboratory. What 1s its lifetime in 1ts rest frame? 3. What 1s the length of a meterstick when it is measured by an observer moving at (a) v = 1610 km/hr = 1000 mph 4, a. InYoung's double-slit experiment, a screen is placed 5.00 m behind a double slit of 0.400-mm separation. If light of 589.0-nm wavelength shines on the slit, find the value of y on the screen corresponding to the first three bright fringes. b. A diffraction grating has 800 lines per mm. Find the distance between each slit. 5. a. Find the energy of a photon of light of 400.0-nm wavelength b. A radio station broadcasts at 92.4 MHz. What is the energy of a photon of this clectromagnetic wave? 6. A beam of light going through a medium with an index of refraction of 1.14 has an angle of incidence of 48 with another medium. If the light wave 1s at a new angle of 39, what 1s the index of refraction for the second medium