Which of these describes a gas?
a. fills volume of the container
b. holds it shape
c. has high density
d. has strong molecular forces

When you drop a pebble from height a it reaches the ground with speed v if there is no air resistance. from what height should you drop it so it will reach the ground with three times the speed? (a) 9m (b) 3m (c) 6m (d) 18m

When a 5.0kg cart undergoes a 2.2m/s increase in speed, what is the impulse of the cart

What is the mass of the water that is being heated? it requires 2,500 joules to raise a certain amount of water (c = 4.186 jig c) from 20.0°c to 60.0°c. o 159 o 40 g o 63 g o 80 g