(1) Arectangularmetal block with mass 18 kg has
dimensions 0.1 m X0.15 m 0.2 m. Calculate the volume
of the block and thus density?

Volume=0.003m^3 density=6000kg/m^3

Explanation:

mass=18kg

volume=length x width x height

Volume of block=0.1x0.15x0.2

volume of block=0.003m^3

Density=mass ➗ volume

Density=18 ➗ 0.003

Density=6000kg/m^3

the independent variable, the one that is intentionally manipulated, is whether or not the car hits the barrier.

the dependent variable, the one that you measure the response in, is the distance that the washers travel.