Which statement is a hypothesis these students might be using in their experiment?

A this experiment tests how the speed of a toy car changes with the steepest of the ramp .

B it’s fun to see how fast the cars roll down the steepest ramp.

C if a toy car is down ramps of different steepest it will roll fastest on the steepest ramp .

D will a toy car roll faster down a steeper ramp ?

Calculate the estimated density of each ball. use the formula d = m/v where d is the density, m is the mass, and v is the volume. record your calculations in table a of your student guide. given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. record your prediction in table a. what is the estimated density of the table tennis ball? record your answer to the nearest hundredth