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If a person exerts 100 watts of power in 10 seconds. How much work was done?
Wiki User
∙ 13y ago
If a human adult uses energy athe rate of 100 watts, or 100 joules per second, and sustains this rate for 10 seconds, the work done equals 1 kilojoule.
Wiki User
∙ 13y ago
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Why power is measured in minutes not in seconds?
It's measured in Watts.
How much power does it take to do 104j of work in 60 seconds?
Power (Watts) is Joules (energy) per Second (time) so divide the number of joules by the number of seconds. 104/60 = 1.733 Watts
Do 100 joules of work in 50 seconds and your power output is?
If one were to do one hundred Joules of work in five seconds, he/she would have a power output of 20 Watts.
How long does it take to perform 450 Joules of work with 25 watts of power?
18 Seconds (:
How much power does a toaster have if it does 21000 joules of work in 30 seconds?
Efficiency here would be power out divided by power in. Energy out is 38,000 Joules. A joule is a watt X second. The toaster is on for 120 seconds. So that 316.66... watts power over the time period t(which doesn't matter). 316.66... watts/ 330 watts = 0.95959.... efficient or 96%.
How much power is needed for a 200 kg person to climb 40 m up in 40 seconds?
Power = 200*9.8*40/40 Watts = 1960 Watts.
Why power is measured in minutes not in seconds?
It's measured in Watts.
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.
Calculate the power in watts used if you exert 50 joules of work in 5 seconds?
Watts is joules per second, so 50 joules in 5 seconds is 10 watts.
An engine exerts a force of 950 N for a distance of 5.75 meters in 3.0 seconds What is the power of the machine?
Since Work is net force times distance moved (Fd), and Power is Work/Time, the answer is (Fd)/t, or(950N x 5.75m)/3.0sYou can do the calculations. The answer will be in Watts.
How much power does it take to do 104j of work in 60 seconds?
Power (Watts) is Joules (energy) per Second (time) so divide the number of joules by the number of seconds. 104/60 = 1.733 Watts
How much power in watts will an led bulb consume if its energy is 6 joules?
Joules (energy) are not equivalent to Watts (power).If something converts 6 Joules every second, it is 6 Watts. If it takes ten seconds to convert 6 Joules, its power is 0.6 Watts.Multiply the Watts by the seconds to find the Joules.CommentYou do not 'consume' power. Power is simply a rate; you cannot consume a rate! You consume energy; the rate at which you consume it is power.
What is the power of 50 joules in 5 seconds?
Power = energy/time = 50/5 = 10 watts
How many watts are 4680000000joules?
Watts are a measure of power, Joules are a measure of energy. The energy is equal to the power times the time. So if you have a power of 5 watts running for 7 seconds, that is 5x7 Joules of energy, or 35 Joules. Looked at another way, power measures how fast energy is converted. So 35 Joules converted in 7 seconds would be 5 watts of power, but it would need 35 watts to convert that energy in 1 second.
How long could 90 Js of energy light a 40 Watt light balb.?
Power (watts) = Energy (joules) / time (seconds). Thus, Time (seconds) = Energy (joules) / Power (watts) = 90J / 40W = 2.25s
If it takes 726 watts of power to move an object 36 meters in 14 seconds, what is the mass of the object?
two watts a second
How do you compute for watts?
Power (in watts) = energy (in joules) / time (in seconds). There are other formulae that involve watts as well, depending on the exact situation. For example, in electrical currents, watts = amperes x volts x power factor. The power factor is usually close to 1.
