Three hundred joules of heat are added to a system. the system uses 140 joules to do work.
by how much did the internal energy of the system change?
a 140 j
b 160 j
c 240 j
d 440 j

The process of predicting values that extend beyond the range of data points is called absolute value extrapolation interpolation prediction for any given: )

The stopwatch used by a student to measure velocity of a pulse in a slinky was of least count 0.1 second. he stops the stopwatch when a pulse has made 3 journeys from one end to the other of the slinky. he finds the seconds hand to be at 52nd division. calculate the correct time noted by him.

Match the words or actions and their definition. 1. the rate of doing work 2. a machine that changes motion 3. the force that is used to generate electricity 4. 550 foot-pounds per second 5. the force that makes things fall toward the earth 6. work in > work out 7. metric measurement of work 8. the product of force times distance water falling from a dam newton-meter gravity work windmill power the work principle 1 horsepower