A 5 kg ball is thrown at 4 m/s. What is the ball’s momentum

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

The rocket is fired vertically and tracked by the radar station shown. when θ reaches 66°, other corresponding measurements give the values r = 32700 ft, r¨ = 85 ft/sec2, and θ˙ = 0.019 rad/sec. calculate the magnitudes of the velocity and acceleration of the rocket at this position.

In a good thermo flask the main cause of heat loss is