Question

Electric mixer 1 transfers 18,000J of energy in 1 minute, and electric mixer 2 transfers 1,750J of energy in 5 seconds. Which electric mixer has the greater power?

Options:
a) Mixer 1
b) Mixer 2
c) Equal power
d) Cannot be determined

Answer 1

To determine which electric mixer has the greater power, we compare their power outputs. Electric Mixer 2 has the greater power as it transfers energy at a faster rate.

Step-by-step explanation:

To determine which electric mixer has the greater power, we need to compare the power outputs of the two mixers. Power is the rate at which energy is transferred or converted. It is calculated by dividing the amount of energy transferred by the time it takes.

For Electric Mixer 1, it transfers 18,000 J of energy in 1 minute. So its power is:

Power = Energy transferred / Time = 18,000 J / 60 s = 300 J/s = 300 W

For Electric Mixer 2, it transfers 1,750 J of energy in 5 seconds. So its power is:

Power = Energy transferred / Time = 1,750 J / 5 s = 350 J/s = 350 W.

Therefore, Electric Mixer 2 has the greater power as it transfers energy at a faster rate.