If the motor exerts a constant force of 30 lb on the cable, determine the power that must be supplied to the motor if the load has been hoisted s = 10 ft starting from rest. the motor has an efficiency of ϵ = 0.76.

Complete the passage to summarize factors affecting the speed of a wave. The material or substance that a wave moves through is called a The medium affects the spee of the wave that passes through it.

A box (250 kg) sits inside the trailer of a semitruck traveling at a speed of 25 m/s (~ 55 mph). Suddenly, a car in front of the truck stops in the road. The driver of the truck hits the brakes to bring the truck to a stop.

Using the periodic table entry below, how many neutrons does the most common isotope of hydrogen have?

How much heat is absorbed by a 47g iron skillet when its temperature rises from 12oC to 20oC?

Why does it rain so hard?

If the car went 30 km west in 25 min. and then 40 km east in 35 min., what would be its total displacement?

Which of the following is not the name of a space station that was in orbit around Earth?

Relationship between acceleration and free fall

A SI unit used to measure force, equal to less than one-quarter of a pound, is the what

What basic form of energy is present in blowing wind?