At the equator, the earth spins a distance of 25,992 miles every day. What speed does the earth spin at in mph?

Photoelectrons with a maximum speed of 6.50 x 107 m/s are ejected from a surface in the presence of light with a frequency of 6.75 x 1014hz. if the mass of an electron is 9.10 x 10-31 kg, calculate in joules the maximum kinetic energy of a single electron. 3.84 x 10-15 j 1.92 x 10-15 j 5.92 x 10-23 j 3.07 x 10-16 j

What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery

Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?