If you apply a net force of 100 N to the hoverboard, and it accelerates 2m/s/s, how much mass does it have?

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

If the temperature were raised very high, classically what would we expect the heat capacity per object to be for this one-dimensional system? give a numerical value. chigh t = __ j/k/object (one reason for the discrepancy is that the high-temperature limit assumes that the number of oscillators is large (n > > 1), which is not the case in this tiny system.)

Aray of light traveling parallel to the principal axis of a concave mirror will be reflected through the mirror's