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Triangle Area = ½base × height Square Area = length of side to the power of 2 Rectangle Area = breadth × height Parallelogram Area = breadth × height Circle Area = πrto the power of 2
Power = (energy) / (time) = (35 x 5) / 19 = 175 newton-meters / 19 seconds = 9.2105 watts (rounded)
6.7 times 10 to the -3 power
2.6 hours = 2.6*60 minutes = 156 minutes = 156*60 seconds = 9360 seconds.
Power is measured in watts, or joules per second. So in 90 seconds, 1200 joules of work is equal to 1200/90 watts or 13.3 watts.
150W
The work done to lift the barbell can be calculated using the formula W = mgh, where m = mass (90 kg), g = acceleration due to gravity (9.8 m/s^2), h = height (2.2 m). After calculating the work done, the average power can be found using the formula P = W/t, where t = time taken (0.6 s). Calculating the work and dividing it by the time will give you the average power output of the weightlifter.
12,000 N, since force is equal to weight in this situation
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The answer depends on the mass of the piano and the height of the floor.
Power = (energy) / (time) =(200 newtons x 4 meters) / (4 seconds) =200 newton-meters per second = 200 watts
The lifts are electric.
The power output would be corralated with the gearing of the motor, but assuming a perfect 1:1 ratio you would have a force of 25lbs, and a power output of 1600 watts.
The power of the machine can be calculated using the formula Power = Work/Time. Given that Work = Force x Distance, and the force required to lift the object will be its weight (N), the power can be calculated using the force (weight of object) and the distance it is lifted in the given time frame.
A dc motor running on a potential difference of 25 volts draws 9.8 A. It lifts a load of 48 pounds 12 feet in 5.5 seconds. How much work does the motor do? How much power does it deliver? How much poser does it consume? What is its efficiency?
Yes.