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An electric heater raises the temperature of water by adding 5250 J of energy to the water in 20 seconds. What is the needed power for this to happen?
262.5 watts
697,500 j
kinetic energy
watt
180
joule
holding your textbook
4800
The action that would require no work to be done is
262.5 watts
697,500 j
kinetic energy
watt
180
joule
holding your textbook
4800
when work is done on an object, causing the object to move, the object gains
262.5 watts
697,500 j
kinetic energy
watt
180
joule
holding your textbook
4800
what is the unit of measurement for work
262.5 watts
697,500 j
kinetic energy
watt
180
joule
holding your textbook
4800
A car jack exerts a force of 4000 to raise a car 1.2 meters. The amount of work done by the jack is _____Joules
262.5 watts
697,500 j
kinetic energy
watt
180
joule
holding your textbook
4800
A 60 N block is pushed up of ramp that is 4 meters long and 3 meters tall. The amount of work done against gravity is ______ joules
262.5 watts
697,500 j
kinetic energy
watt
180
joule
holding your textbook
4800
A car has a mass of 6200 kg and is moving at a velocity of 15 m/s. A 20,000 N force is used to move the car 34.85 m. What is the car's kinetic energy?
262.5 watts
697,500 j
kinetic energy
watt
180
joule
holding your textbook
4800
what is the unit of measurement for power?
262.5 watts
697,500 j
kinetic energy
watt
180
joule
holding your textbook
4800
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