Suppose that the magnitude of the charge on the yellow sphere is determined to be 2q. calculate the charge qred on the red sphere. express your answer in terms of q, d1, d2, and θ.

What is relative velocity? in which condition is relative velocity known by adding the velocity of the first body and that of the second body

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 measurement of how fast an object moves relative to a reference point?