Assume that the acceleration due to gravity on the surface of the moon is 0.2 times the
acceleration due to gravity on the surface
of the earth. If R, is the maximum range of
a projectile on the earth's surface, what is
the maximum range on the surface of the
moon for the same velocity of projection

Alightning strike consists of charge moving from a cloud to the ground . in one particular case, the electrons in a lightning strike are confined to travel within a radius of 1.5 m and to move at a speed of 5.0 x 10 m/s. if the density of electrons in the strike is 10'15 electrons/m what current is carried by the lightning ?

Light traveling in a medium with a refractive index 1.19 is incident on a plate of another medium with index of refraction 1.79. at what angle of incidence is the reflected light fully polarized?

In which of these cases are the two wave points considered to be in phase with each other?