Amotor does a total of 480 joules of work in 5.0 seconds to lift a 12-kilogram block to the top of a ramp. the average power developed by the motor is
(1)8.0 w
(2)40. w
(3)96 w
(4)2400 w

The plum pudding model of the atom state that ?

The force acting on a beam was measured under the same operating conditions and a sample of 5 data points was collected. this process was repeated by 3 observers. the pooled standard deviations of these 3 data sets was 1.21. determine the true mean force using all pooled data (with a 95% probability). the result should look like this: true mean = mean +/- margin of error

Aspecimen of oil having an initial volume of 580cm^3 is subjected to a pressure increase of 4.0 mpa, and the volume is found to decrease by 0.40 cm^3. (a) what is the bulk modulus of the material? (b) what is the compressibility of the material?