Find the momentum of a train with a mass of 850 kg and forward velocity of 15 m/s

A machine uses an input force of 200 newton to produce an output force of 800 newton. What is the mechanical advantage of this machine

Is it possible for several scientists who have never met each other to contribute to the same scientific knowledge, theory, or law? Explain your answer.

A car accelerates 4 m/s to 16 m/s in 4 seconds what's the cars acceleration

The annoying sound from a mosquito is produced when it beats its wings at the average rate of 600 wingbeats per second. What is the frequency of the soundwaves?

What component of Star Wars is possible based on our current understanding of physics?

Explain or don't answer : 3 If the medium a wave is traveling through is constant, what about the wave can change? A: only its speed or frequency B: both its frequency and wavelength C: both its amplitude and speed D: both its speed and wavelength

The force of attraction between two oppositely charged pith balls is 5.3 * 10-6 newtons. If the charge on the two objects is 6.7 * 10-9 coulombs, what is the distance between the two charges? (k = 9.0 * 109 newton·meter2/coulombs2)

A Styrofoam slab has thickness h and density ρs. When a swimmer of mass m is resting on it, the slab floats in fresh water with its top at the same level as the water surface. Find the area of the slab.

A battleship steams due east at 24 km/h. a submarine 4.0km away fires a torpedo that has a speed of 50 km/h. if the bearing of the ship as seen from the submarine is 20 degrees north of east ... ( a.

Scientist that supplied equations to combine wave and particle theory?