2.A man in a hot air balloon drops his "five guy's hamburger over the edge of the basket. The basket is 19 meters above the ground. How fast is the hamburger moving when it hits the ground? (Show work)

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

The volume of a gas is halved during an adiabatic compression that increases the pressure by a factor of 2.5. what is the specific heat ratio? show the math steps .

Determine the fraction of the magnitude of kinetic energy lost by a neutron (m1 = 1.01 u) when it collides head-on and elastically with a target particle at rest which is 21h (heavy hydrogen, m = 2.01 u).