The law of reflection states that if the angle of incidence is 39 degrees, the angle of reflection is ___ degrees.

you and your friend each drive 70 miles you drive 60 miles/hour and your friend. drives 55 miles / hour how much sonner will you finish your trip

The mechanic hoisted the car upward at a constant speed

1. An electromagnetic wave in a vacuum has a wavelength of 0.07 m. What is its frequency? f = 3.0 • 108 m/s f = 4.3 • 109 Hz f = 3.0 • 109 Hz f = 4.3 • 108 m/s 2.

What is the formula of efficiency, in terms of power?

Why does pressure increase in space?

A standing wave is established in an organ pipe that is closed at one end. What is located at the open and closed ends of the pipe?

When all parts of a circuit are composed of conducting materials, the circuit is said to be A. parallel. B. closed. C. open. D. shorted.

You travel an an average speed of 20 km/h in a straight line to get to your grandmothers house. It takes you 3 hours to get to her house. How far away is her house from where you started?

A boat with an anchor on board floats in a swimming pool that is somewhat wider than the boat. Does the pool water level move up, move down, or remain the same if the anchor is (a) dropped into the water or (b) thrown onto the surrounding ground

In July 2005, NASA's "Deep Impact" mission crashed a 372-kg probe directly onto the surface of the comet Tempel 1, hitting the surface at 37,000 km/h.