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A weightlifter does 450 J or work on a barbell in 3 s. How much power is the weightlifter generating?
To figure this out you also would need to know the time it took to lift the box.
Force, distance, and time
The amount of power will decrease.
18 W
150 W
if it took Mike much longer than Shantel to finish the work
Increasing the speed at which the motor does work
joules/second
What unit defines a watt?
To figure this out you also would need to know the time it took to lift the box.
Force, distance, and time
The amount of power will decrease.
18 W
150 W
if it took Mike much longer than Shantel to finish the work
Increasing the speed at which the motor does work
joules/second
Which of the following sets of measurements could be used to calculate power?
To figure this out you also would need to know the time it took to lift the box.
Force, distance, and time
The amount of power will decrease.
18 W
150 W
if it took Mike much longer than Shantel to finish the work
Increasing the speed at which the motor does work
joules/second
How much power would be required to lift a 10-N box 2 meters?
To figure this out you also would need to know the time it took to lift the box.
Force, distance, and time
The amount of power will decrease.
18 W
150 W
if it took Mike much longer than Shantel to finish the work
Increasing the speed at which the motor does work
joules/second
If a weight took 180 J to move 3 meters in 10 seconds, how much power did it take?
To figure this out you also would need to know the time it took to lift the box.
Force, distance, and time
The amount of power will decrease.
18 W
150 W
if it took Mike much longer than Shantel to finish the work
Increasing the speed at which the motor does work
joules/second
How will the amount of power change if less work is done in more time?
To figure this out you also would need to know the time it took to lift the box.
Force, distance, and time
The amount of power will decrease.
18 W
150 W
if it took Mike much longer than Shantel to finish the work
Increasing the speed at which the motor does work
joules/second
How would it be possible for Mike to do more work than Shantel while being less powerful than she is?
To figure this out you also would need to know the time it took to lift the box.
Force, distance, and time
The amount of power will decrease.
18 W
150 W
if it took Mike much longer than Shantel to finish the work
Increasing the speed at which the motor does work
joules/second
Pedro is building a motor. He wants it to be more powerful. Which would help him increase the power?
To figure this out you also would need to know the time it took to lift the box.
Force, distance, and time
The amount of power will decrease.
18 W
150 W
if it took Mike much longer than Shantel to finish the work
Increasing the speed at which the motor does work
joules/second
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