2. A rock falls under a gravitational force of 16.3 N on the moon. Given that the acceleration due to gravity on the moon is one sixth of that on the Earth, find the mass of the rock.

What is the energy of a photon of ultraviolet radiation with a frequency of 4.4 × 1015 hz? planck’s constant is 6.63 × 10–34

Which articulations allow for greatest range of motion?

A10nc charge sits at a point in space where the magnitude of the electric field is 1500 n/c. what will the magnitude of the field be if the 10 nc charge is replaced by a 20 nc charge? assume the system is big enough to consider the charges as small test charges.