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What is the power of a CD player if it uses 60000 joules for 30 minutes assuming 100 percent efficiency?
Power = energy used/time to use itPower of this CD player = 60,000/(30 x 60) = 331/3 wattsThat solution doesn't depend on the player's efficiency ... you specifiedonly the energy it uses.But since you did mention the concept of efficiency, I'm compelled to add athought here: If you're describing the kind of CD player that you can carryin your pocket and listen to it on the bus, then 33 watts is an astronomicalpower consumption for it. You'd need to carry a back-pack full of batteries,and recharge them every few hours.If these are real figures, and the thing really does consume 33 watts in normaluse, then I hope it plugs into the wall, and drives a nice pair of speakers.
How much power is needed to do 1200 Joules of work in 90 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.
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.
What is the rate at which work is done?
Work is energy, measured in joules. The rate of work, or joules per second, is known as watts, or power.
5 plus 6x10 to the fourth power?
5 + 6*104=60000+5=60005
How much power in watts is needed to cut a lawn in 50 minutes if the work involved is 100000 joules?
The power needed to cut a lawn in 50 minutes, given that the work done is 100,000 joules, can be calculated by dividing the work by the time. 100,000 joules of work in 50 minutes is equivalent to 33.33 watts of power.
How much power in units of horsepower is generated from 79.3 Joules of work done in 37.2 minutes?
Power = energy/timeWatts = joules/seconds(79.3 joules/37.2 minutes) x (minute/60 seconds) = 0.03553 watt= 35.53 mW = +15.5 dBm (rounded)====================To answer the question:(79.3 joules/37.2 minutes) x (minute/60 seconds) x (horsepower/745.7 watts) = 0.0000476 HP (rounded)47.6 microhorsepower(power output of 47.6 microhorses)
How much work is done if 500 watts of power is used over 2 minutes?
The work done is equal to the power multiplied by the time. In this case, 500 watts × 2 minutes = 1000 joules.
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 much power is used when 600J of work are done in 10s?
60 W
What number equals 60000 when taken to the 6th power?
6√60000 ≈ 6.2569
How much work can a 500 watt electric mixer do in 2.50 minutes?
The work done by an electric mixer can be calculated by multiplying the power (500 watts) by the time (2.50 minutes) in seconds. First, convert the time to seconds: 2.50 minutes = 150 seconds. Then, calculate the work done: Work = Power x Time = 500 watts x 150 seconds = 75,000 joules.
How much joules of heat does a 100 W of heater produce if it is operated for 5 min?
The amount of heat produced by the 100 W heater in 5 minutes can be calculated as follows: Power (in watts) = 100 W Time (in seconds) = 5 minutes * 60 seconds/minute = 300 seconds Energy = Power * Time = 100 W * 300 s = 30,000 joules So, the heater will produce 30,000 joules of heat.
What is the conversion from joules of energy to watts of energy?
Power (watts) is a measure of energy transfer over time, while energy (joules) is a measure of total work done. The formula to convert energy in joules to power in watts is: Power (watts) = Energy (joules) / time (seconds).
What does power 200 joules mean?
Power represents the rate at which work is done or energy is converted. In this case, a power of 200 joules means that 200 joules of energy is being transferred or converted every second.
How much power is necessary to do 60 joules of work in 20 seconds?
The power required to do 60 joules of work in 20 seconds is determined by the formula: Power = Work / Time. Therefore, Power = 60 joules / 20 seconds = 3 watts. So, 3 watts of power is necessary to do 60 joules of work in 20 seconds.
Does 200 joules of work done in 20 seconds involve more power than 50 joules of work done?
Yes, because power is a measure of how quickly work is done. In this case, the power for the 200 joules of work done in 20 seconds would be 10 watts, while the power for the 50 joules of work done would be 2.5 watts. Hence, 200 joules of work done involves more power than 50 joules of work done.
