A railroad diesel engine weighs four times as much as a freight car. If the diesel engine coasts at 24 km/h into a freight car that is at rest, how fast do the two coast after they couple?

You see a lightning bolt in the sky. You hear a clap of thunder 3 seconds latter. The speed of 330 m/s. How far away was the lightning?

A weather report says winds blow at 5km/h from the northeast is this description of the wind a speed or velocity? Explain your answer

The 20 g bullet is traveling at 400 m/s when it becomes embedded in the 2 - kg stationary block. Determine the distance the block will slide before it stops. The coefficient of kinetic friction between the block and the plane is μk=0.2.

For every action there is an equal and opposite reaction. What does these words mean in physics?

Select all that apply. The world's population is: evenly distributed growing quickly concentrated in a few areas putting pressure on resources and space expected to shrink by 2050

Scientists now think high-fructose corn syrup may disrupt appetite control, making people more often o sleep get angry Ceat fast

What are the strengths and limitations of the doppler method?

Voltage can exist without A. current. B. resistance. C. a closed circuit. D. all of these

During a football game, a receiver has just caught a pass and is standing still. Before he can move, a tackler, running at a velocity of 2.60 m/s, grabs and holds onto him so that they move off together with a velocity of 1.30 m/s.

What effect does an increase in temperature have on viscosity?