Acar moving in a straight line starts at x=0 at t=0. it passes the point x=25.0m with a speed of 11.0m/s at t=3.0s. it passesthe point x=385m with a speed of 45.0m/s at t=20.0s. find the average velocity and the average acceleration, between t=3.0s and t=20.0s

What is the relationship between the wavelength of a wave and it's energy?

What property of an object determines its inertia?

An insulated thermos contains 148 g of water at 72.7 ˚c. you put in a 11.7 g ice cube at 0.00 ˚c to form a system of ice + original water. the specific heat of liquid water is 4190 j/kg•k; and the heat of fusion of water is 333 kj/kg. what is the net entropy change of the system from then until the system reaches the final (equilibrium) temperature?