In the illustration, which two simple machines are being used to enable the student to reach the door?

a)
inclined plane and pulley

b)
lever and wheel-and-axle

c)
pulley and lever

d)
wheel-and axle and inclined plane

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

Aforklift raises a 1,020 n crate 3.50 m up to a shelf. how much work is done by the forklift on the crate? the forklift does j of work on the crate.

Which statement correctly describes the current in a circuit that is made up of any two resistors connected in parallel with a battery? a. the current in the battery and in each resistor is the same b. the current the battery equals to the sum of the currents in the resistors c.the current in the battery is less than the current in either resistor d. the current in the battery equals to the product of the currents in the resistors