About how fast are Earth's tectonic plates moving, on average? A. 0.2-0.5 cm/yr B. 2-10 cm/yr C. 50-100 cm/yr D. 10-20 m/yr

If the skater coasts only around 65 degrees of the circle, find the magnitude of his displacement vector.

By how much does the temperature of mercury increase? the specific heat of mercury is 140

Three asteroids have exactly the same amount of mass. The distance from asteroid A to asteroid B is 200 km, the distance from asteroid B to C is 100 km, and the distance from C to A is 250 km.

Resonance in air column is used in which of these musical instruments Trumpet Drums guitar violent Trumpet makes the most sense

Ted swam 25 m east in the lake and then turned and swam 75 m west. his displacement was 50 m west. what distance did he swam? a. 100m b. 25m c. 75m d. 50m

A farmer had 15 sheep, and all but 8 died. How many are left?

While playing with her 5 year old cousin, a Physics 135 student pushed him forward on his scooter. She pushes with a force of 50 Newtons for 3.5 seconds. If the boy and the scooter together have a mass of 30 kg, what is their final velocity? a. 2.

3. A 120.0 V generator supplies 3.0 kw of power. How much current ca the generator deliver?

An apple drops from a tree and hits the ground in 1.5s what is its speed just before it hits the ground?

Sound travels slow in cold air. Why does the speed of sound depend on air temperature?