The mass of a particle is frequently expressed in units of MeVie. You cle is frequently expressed in units of Meyle You can do this for the cases above by just converting Joules to MeV to get the energy in Mey. The mass is just stated as that over e-squared rather than actually doing the division by (3x10'). a) Rest mass for an electron in MeV/c. b) Find the relativistic mass of the muon from the previous section in units of MeVic 4) A photon is a massless particle that has energy and momentum. a) Using the relations above, what is the relation between total energy and momentum for the photon

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is

Four objects each with charge +2.0×10−7c are located at the corners of a square whose sides are 2.0 m long. part a what quantities can be determined using this information? check all that apply. the electric force on a charged object placed at the center of the square. the mass of each object. the total electric potential energy of the system consisting of the four charged objects. part b find the electric force on a charged object placed at the center of the square.

People with normal vision cannot focus their eyes underwater if they aren't wearing a face mask or goggles and there is water in contact with their eyes. in a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina.with the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 2.05cm in front of the eye.)