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The power of a motor can be calculated using the formula: Power (P) = Work (W) / Time (t). In this case, the work done is 4000 joules and the time is 20 seconds. Therefore, P = 4000 J / 20 s = 200 watts. Thus, the power of the motor is 200 watts.

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What is the power of a small motor that can do 4500 j of work in 25 sec?

The power of a motor can be calculated using the formula ( P = \frac{W}{t} ), where ( P ) is power, ( W ) is work done, and ( t ) is time. Given that the motor does 4500 joules of work in 25 seconds, the power is ( P = \frac{4500 \text{ J}}{25 \text{ s}} = 180 \text{ W} ). Therefore, the power of the small motor is 180 watts.


How many seconds would it take a 1200 W motor to raise a 9800 N to 10 m high?

Calculate the amount of potential energy required. Then divide by the power.


An electric drill has an efficiency of 75 percent. If the motor has a power input of 700 watts and is run for 30 seconds. How much actual work is done. How would I get a kilojoules answer?

Power input = 700 WEfficiency = 75% so power output = 75% of 700 = 525 W Time = 30 seconds => Work done = 525W * 30s = 15750 W.s = 15750 Joules = 15.75 kiloJoules.


Why can a car accelerate from 0 to 60 in less than 4 seconds?

Most likely, the motor can not handle the horse power it needs. Some cars are built to achieve that. But they are cars that are built for racing, or they have more horse power than the average family car.


What is the power of a bulb that uses 3 jolts every 10 seconds?

Power is calculated as energy consumed per unit time. If a bulb uses 3 joules of energy every 10 seconds, its power can be calculated using the formula: Power (in watts) = Energy (in joules) / Time (in seconds). Therefore, the power of the bulb is 3 joules / 10 seconds = 0.3 watts.

Related Questions

If an elevator motor lifts a load of 10 slugs through a distance of 20 feet in 8 seconds how much power is the motor producing?

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.


What is the power of a small motor that can do 4500 j of work in 25 sec?

The power of a motor can be calculated using the formula ( P = \frac{W}{t} ), where ( P ) is power, ( W ) is work done, and ( t ) is time. Given that the motor does 4500 joules of work in 25 seconds, the power is ( P = \frac{4500 \text{ J}}{25 \text{ s}} = 180 \text{ W} ). Therefore, the power of the small motor is 180 watts.


What amount of work can a 600 W motor do in 4 minutes?

(600 Watts) x (4 minutes) = (600 joules per second) x (240 seconds) = 144,000 joules =144 kilojoules


How many watts of motor are required for 30 kg material?

If it's to lift 30 kg, it depends how far it is to be lifted and how quickly the lift takes to complete. To lift 30 kg through 10 metres requires 30 x 9.8 x 10 joules of energy, that is 3000 Joules. To do that in 10 seconds needs 300 watts, which would be about half a horse power motor. To do it in 5 seconds the power would be 600 watts - a 1 horse power motor.


How much energy does the motor transfer every second?

The amount of energy that a motor transfers every second can be calculated by multiplying the power output of the motor by the time duration over which the power is being exerted. The unit of power is watts (W), and the unit of time is seconds (s). Therefore, the energy transfer per second can be expressed in units of joules per second, which is equivalent to a watt.


How long would it take a 500 W electric motor to do 150000 J of work?

To find the time it takes for a 500 W electric motor to do 150,000 J of work, you can use the formula: time = work / power. Substituting the values, time = 150,000 J / 500 W = 300 seconds. Therefore, it would take the motor 300 seconds, or 5 minutes, to do 150,000 J of work.


How many seconds would it take a 1200 W motor to raise a 9800 N to 10 m high?

Calculate the amount of potential energy required. Then divide by the power.


Is an airplane a motor or a vehicle?

An airplane is a VEHICLE. It's power is provided by a MOTOR.


Is your power into motor equal to your power out of motor at no load?

For a motor's output power to equal its input power, the motor's efficiency must be 100%. As no machine, particularly a rotating machine, can possibly achieve 100% efficiency, there is no condition under which its output power can ever match its input power.


How do you test a power window motor?

Disconnect wires from motor and check to see if you have power and ground going to motor--if so motor is bad if not have to check wiring and switch to that motor


Slip power in a induction motor?

slip power is a power which is develop by the induced voltage and current in an induction motor


How do you calculate 3ph AC motor power?

How do you calculate 3ph AC motor power?