How many layers does the world have?

Mechanical advantage is a measure of how much a machine multiplies the input A) efficiency. B) force. C) power. D) work.

An electron is to be accelerated from a velocity of 4.50*106 m/s to a velocity of 9.00*106 m/s. Through what potential difference must the electron pass to accomplish this?

What force stops a car from sinking into the road surface?

What allows the bimetallic coil to turn on or off a heating or cooling system? The two metals contract the same amount. The thermostat is set at a particular temperature. The two metals expand differently. The coil comes in contact with air.

Radiant heat transfers energy A.) To nearby solid objects B.) To the surrounding air

An Australian emu is running due north in a straight line at a speed of 13.0 m/s and slows down to a speed of 10.0 m/s in 3.30 s.

Why do skiers often wear sunglasses while they are skiing

The amount of gravitational force exerted on each other between two objects depends on their A) mass and distance. B) mass and diameter. C) distance and volume. D) distance and location. Eliminate

Why is plasma called the "fourth state of matter"? I've recently heard that plasma is sometimes referred to as the "fourth state of matter". Why is this? Why is it not the first, second or third?

Which of these would you include ina free body diagram for a bicycle-plus-rider taken together as the bicycle is being pedaled up the hill?