If an object is thrown up at an initial velocity of 9.8 m/s, how long will it take to fall back to the ground?

A certain sound is recorded by a microphone. The same microphone then detects a second sound, which is identical to the first one except that the amplitude of the pressure fluctuations is larger.

Does the electrical conductivity of a wire affect the strength of an electromagnet?

What is molecular magnet

Is one liter about an ounce a pint a quart or a gallon

Density? m=60g, v=30cubiccm

Which devices might use electromagnets? pick all that apply. 1. audio speakers 2. plastic combs 3. trains 4. doorbells 5. revolving chairs 6. cranes

Match each type of line or symbol, common to geologic maps, to its description. 1. Fault Line A. very dark and thick line 2. Contact Line B. very light and thin line 3. Axis Fold C. look like a stubby T 4. Strike and Dip D.

You drop your backpack out of a window from a height of 8.3 m. What is the impact speed of your backpack? A. 163 m/s B. 1.2 m/s C. 21.3 m/s D. 12.8 m/s

What is the kinetic energy of a car that has a mass of 1,600 kg and is moving at 22 m/s?

Which is an example of a transverse wave? A. sound B. electromagnetic C. water D. seismic waves