A shift of one fringe in the Michelson-Morley experiment corresponds to a change in the round-trip travel time along one arm of the interferometer by one period of vibration of light (about 2 ✕ 10−15 s) when the apparatus is rotated by 90°. t = 2 tacross = 2L c2−u2 = 2L c 1− u2/c2 , what velocity through the ether would be deduced from a shift of one fringe? (Take the length of the interferometer arm to be 12 m.)

Curious carl calculated the density of a cube to be 4.50 g/cm3. what is the density of the cube in g/l?

What will a positive and a negative charge do if they are separated from each other?

Arefrigerator uses r-134a as the working fluid and operates on the ideal vapor-compression refrigeration cycle except for the compression process. the refrigerant enters the evaporator at 120 kpa with a quality of 34 percent and leaves the compressor at 70°c. if the compressor consumes 450 w of power, determine (a) the mass flow rate of the refrigerant, (b) the condenser pressure, and (c) the cop of the refrigerator. (0.00644 kg/s, 800 kpa, 2.03)