Compute the resistance of a 90-cm length of copper wire with a 0.020 -cm^2 cross-sectional area. ( = 1.8 x 10-6 ohm-cm) R = ohms

Determine the expected diffraction angle for the first-order reflection from the (310) set of planes for bcc chromium when monochromatic radiation of wavelength 0.0735 nm is used. the atomic radius for cr is 0.1249 nm.

An artificial satellite circles the earth in a circular orbit at a location where the acceleration due to gravity is 6.03 m/s^2. determine the orbital period of the satellite.

What happens to the light rays when they hit the specimen?