A motorist makes a trip of 180 miles. For the first 90 mph she drives at a constant speed of 30 mph. What constant speed must she drives the remaining distance if her average speed for the total trip is to be 40 mph

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?

What is the definition of zeroth laws?

Approximately how much energy is contained in 1 g of matter? A. 3 * 1013 J B. 9 * 1013 J C. 3 * 1016 J D. 9 * 1016 J

You have 4 quarts of milk. How many liters is this? (1 quart equals about 0.946 L.)

A sheet of mica is inserted between the plates of an isolated charged parallel-plate capaci tor. Mica is a transparent mineral that comes naturally in thin sheets, and is an excellent dielectric. Which of the following statements is true? 1.

A commercial jet flies at 550mi/hr for 3000mi. For how much time does the jet fly?

If almost any system in stable equilibrium is slightly disturbed, it will then exhibit simple harmonic motion because 1. the change in potential energy is proportional to the cube of the displacement from the equilibrium position. 2.

Is the following statement true or false? Nuclear fission occurs naturally in stars.

Why is it useful to calculate average speed?

Which describes freefall