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Which of the situations involves more power200 Joules of work done in 20 seconds or 50 Joules of work done in 4 seconds?
Use the definition of power as energy / time (or the equivalent work / time). Do the calculation for both cases, then compare.
If 10 joules in 20 seconds how many newtons?
You can't calculate the force from the rate at which work is done.10 joules in 20 seconds could be:-- 1 newton pushing along at 50 centimeters per second, or-- 0.1 newton pushing 5 meters per second, oran infinite number of other possibilities.From the data given in the question, all we know is that the 'power' is 1/2 watt.
How long does it take to perform 480 Joules of work with 20 watts of power?
480 joules = 480 watt-seconds20 watts x (time) = 480 watt-secondsDivide each side by 20 watts:Time = 24 seconds
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.
1. 10 J of heat are removed from a gas sample while it is being compressed by a piston that does 20 J of work. What is the change in thermal energy of the gas Does the temperature of the gas increase?
10 JoulesConservation of energy, assuming there are no other losses in the system, and 20 Joules are introduced by compression, and 10 Joules are removed by heat transfer, the remaining 10 Joules must be absorbed as increased thermal energy of the gas.
Which of the situations involves more power200 Joules of work done in 20 seconds or 50 Joules of work done in 4 seconds?
Use the definition of power as energy / time (or the equivalent work / time). Do the calculation for both cases, then compare.
If 10 joules in 20 seconds how many newtons?
You can't calculate the force from the rate at which work is done.10 joules in 20 seconds could be:-- 1 newton pushing along at 50 centimeters per second, or-- 0.1 newton pushing 5 meters per second, oran infinite number of other possibilities.From the data given in the question, all we know is that the 'power' is 1/2 watt.
How long does it take to perform 480 Joules of work with 20 watts of power?
480 joules = 480 watt-seconds20 watts x (time) = 480 watt-secondsDivide each side by 20 watts:Time = 24 seconds
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 stinger mouthwash work?
about 20 seconds HAHAHA im 10
What is the change in internal energy if 20 joules of heat is released from a system and the system does 50 joules of work on the surroundings?
-70 Joules
What is voltage when current 2 ampere time 30 seconds and energy 600 joules?
Power = 600/30 = 20 wattsPower = V x IV = Power/I = 20/2 = 10 volts
1. 10 J of heat are removed from a gas sample while it is being compressed by a piston that does 20 J of work. What is the change in thermal energy of the gas Does the temperature of the gas increase?
10 JoulesConservation of energy, assuming there are no other losses in the system, and 20 Joules are introduced by compression, and 10 Joules are removed by heat transfer, the remaining 10 Joules must be absorbed as increased thermal energy of the gas.
When 20 grams of water is cooled from 20 C to 10 C the number of joules of heat released is?
200 calories, or approx. 47.84 joules
How much work is done if a force of 20 N is applied on an object that remains stationary?
20 joules
Who much work needs to be done to lift a 500kg mass from the ground to a height of 20 meters?
work=force(distance) work=500(20) work=10000 joules
How much work is done in lifting a 50kg crate a vertical distance of 10 meters?
Potential Energy is given by the fourmulai PE=MGH where M=mass in kilos, G=the force of gravity in Netwons (9.8N) and H=height in meters. So 50*9.8*10=4900joules. A Watt is a unit of power that =1 joule per second. So 4900 joules divided by 5 seconds = 980 Watts, not allowing for losses due to friction etc.
