The principal limitation of wind power is unpredictability. True or False

A father lifts a toddler 1.5m up in the air. The child gains 187.5J of gravitational potential energy as a result. What is the mass of the toddler? (Assume that the gravitational field strength is 10N/kg.)

Which type of wave can transmit energy through a vacuum?

Why are you able to observe the Doppler effect on earth with sound waves but not with light waves?

What is the critical angle of a diamond having a refractive index of 2.42? Use air as the second medium. Air has the refractive index 1.00. A. 14.9° B. 24.4° C. 36.6° D. 40.9°

A 3.0-kg cart rolls down a hill. Assume that the height of the cart changes from a maximum of 4.0 meters at the top of the hill to 0.0 meters at the bottom. The speed of the cart changes from 0.0 m/s to 3.0 m/s.

A scientist has been tracking and studying a population of deer in Yellowstone National Park. He surveys the population every six months. Usually, the population is thriving and has a gene pool with a wide variety of traits.

How long will it take a bike traveling at 5 meters per second to travel 25 meters south? A. 5 s B. 0.2 s C. 5 s south D. 0.2 s south

Two masses are connected by a string which passes over a pulley with negligible mass and friction. One mass hangs vertically and one mass slides on a frictionless 30.0-degree incline. The vertically hanging mass is 6.

The coordinates 40 degrees north and 100 degrees east falls in what country?

Which type of radio waves have the highest frequency and are used in radar detection? microwaves x-rays waves infrared waves gamma waves