Sound travels at a speed of about 340m/s in the air. How long will it take an explosion to be heard from a distance of 20 miles away?

What is the stopping distance at night for a passenger vehicle traveling at 50 mph?

An impulse of 150 n s is required to stop a person's head in a car collision. if the face is in contact with the steering wheel for 0.0307 s, what is the average force on the cheekbone? answer in units of n.

Which type of wave cannot transmit energy through a vacuum

Al llegar a detenerse, un automóvil deja marcas de derrape de 92m de largo sobre una autopista. Si se supone una desaceleración de 7 m/s, estime la rapidez del automóvil justo antes de frenar

When the temperature of water increases from room temperature to 90C the process of heating the water is ... adiabatic exothermic isothermic endothermic all of the above

When the sun is directly overhead, a hawk dives toward the ground with a constant velocity of 5.35 m/s at 52.0° below the horizontal. Calculate the speed of its shadow on the level ground. M/s?

How do the tension of the cord and the force of gravity affect a pendulum? A. They are the competing forces that act on a pendulum as it swings. B. They are the two factors that affect the period of a pendulum. C.

What is an example of static friction

What is the configuration of NE

Why does ice generally have very little friction when it is in contact with other materials?