Joe used a 750 watt 1/2" cordless drill to put together a bookcase. calculate the work involved in this thirty minute process.

a)
2.4 j

b)
60 j

c)
22,500 j

d)
1,350,000 j

1,350,000Joules

Explanation:

Work done by Joe in 30minutes can be calculated using the formula

Work done = power × time

Given power = 750watts

Time = 30minutes

Time = 30×60 = 1800secs

Workdone = 750×1800

Work done by Joe= 1,350,000Joules

c.is a substance that requires a small amount of energy per gram to raise its temperature; has strong cohesive forces between molecules.

explanation:

a colorless, transparent, odorless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms.