Afactory employee spends two hours putting together a car part. a machine can do the same job in thirty minutes. which statement best describes the time-effectiveness of this scenario? the employee is four times as time-effective as the machine. the machine is half as time-effective as the employee. the employee is half as time-effective as the machine. the machine is four times as time-effective as the employee.

The necleus of an atom is made up of what subatomic particles?

Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?

The vapour pressure of benzene is 53.3 kpa at 60.6 °c, but it fell to 51.5 kpa when 19.0 g of a non-volatile organic compound was dissolved in 500 g of benzene. calculate the molar mass of the compound.