Gamma rays (γ-rays) are high-energy photons. in a certain nuclear reaction, a γ-ray of energy 0.815 mev (million electronvolts) is produced. compute the frequency of such a photon. answer must be in hz.

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?

Atorque acting on an object tends to produce a. equilibrium b. rotation c. linear motion d. velocity e. a center of gravity

1. explain how you calculate the net force in any direction on the box. 2. suppose an upward force of 15n is added to the box. what will be the net vertical force on the box? 3. what force could be applied to the box to make the net force in the horizontal direction zero? explain. 4. suppose a force of 25n to the right is added to the box. what will be the net force to the right?