Dust settling out of the air

chemical change or physical change

In a given reversible process, the temperature of an ideal gas is kept constant as the gas is compressed to a smaller volume. Which of the following statements is true regarding this process? A. The gas must absorb heat from its surroundings. B.

Friction force equation

Read the scenario and solve these two problems. When traveling at top speed, a roller coaster train with a mass of 12,000 kg has a velocity of 30 m/s. The kinetic energy of the train at top speed isJ.

Continuous signals are characterized as. Signals that are broken up into binary code are characterized as. An AM/FM radio is a good example of technology. A smart phone is a good example of technology. analog ... digital ... analog ... digital

Over a span of 6.0 seconds, a car changes its speed from 89 km/h to 37 km/h. What is its average acceleration in meters per second squared (m/s2)

If element X has 17 protons, how many electrons does it have?

A 2.0-kilogram laboratory cart is sliding across a horizontal frictionless surface at a constant velocity of 4.0 meters per second east. What will be the cart's velocity after a 6.0-newton westward force acts on it for 2.

A boat floats with 25% of its volume under water. a. What is the boatâs density? b. If the boat was made from 500 kg of metal, what is the volume of the boat? (Assume the air in the boat has negligible mass and density) c.

Why does each mineral have their own property, different from every other mineral?

Earth's tallest mountain ranges are found at plate boundaries