Ablock of wood has a length of 4 cm a width of 5 cm and a height of 10 cm what is the volume of the wood

The roller coaster from problem #1 then tops a second hill at 15.0 m/s, how high is the second hill? 91.5 m 79.2 m 80.0 m 68.5 m

Which planet do you think would be easiest for humans to colonize some day?

Aforklift raises a box above the floor and does 2,000 j of work. if the forklift motor consumes 3,000 j of electrical energy from the battery to raise the box, what is the efficiency of the lift?