A chunk of paraffin (wax) has a mass of 50.4 grams and a volume of 57.9 cm3. What is the density of

paraffin?

What needs to stay in the cell?

1. Why does the water vapour in clouds condense? 2. Explain why you can see clouds but not see the water vapour in the air

Describe two main differences between fission and fusion.

A bicycle wheel is rotating at 50 rpm when the cyclist begins to pedal harder, giving the wheel a constant angular acceleration of 0.46 rad/s2. How many revolutions does the wheel make during this time?

Which scientist first proposed physical laws to mathematically describe the effect of forces on the motions of bodies?

The horizon moon appears to shrink in size if it is viewed through a narrow tube that eliminates the perception of distance cues. This best illustrates the importance of: a) convergence b) closer, farther away c) context effects d) none of thses

A bow is pulled back with 89.0N of force a distance of. 600m and shoots a 300kg arrow straight up. What is the work done on the arrow? 0.00J 53.4J 26.7J 16.0J

A stationary rock is pushed off a very high cliff. Which graph correctly represents the acceleration due to gravity as the rock undergoes free fall to the ground?

What do you think would happen to the mass if the reaction took place inside a sealed plastic bag?

If the distance between two charges is increased to three times the original distance, how will the electrical force between the charges compare with the original force? A) It will increase to three times the original force.