PLEASE HELP: how much work is done in 60 seconds by a 750 W motor?

45.000

Explanation:

We know, Power = Energy / time

Here, P = 750 Watt

t = 60 sec

Substitute their values,  

750 = E / 60

E = 750 * 60

E = 45,000

1/0.14nm = 10^10/1.4 a lot

when heated, the valance electrons increased their speed and transferred the heat from electron to electron.   i just took the test.