Physics, 30.11.2019 01:31 yolo123321
Two cubes, one silver and one iron, have the same mass and temperature. a quantity q of heat is removed from each cube. which one of the following properties causes the final temperatures of the cubes to be different?
a) density
b) latent heat of vaporization
c) specific heat capacity
d) coefficient of volume expansion
e) volume
Answers: 2
Physics, 21.06.2019 22:30, jadalysrodriguez
The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force
Answers: 1
Physics, 22.06.2019 07:30, luckylady
Select all of the following that are equal to an impulse of 20 unitsa) force= 5, time= 5.5b) force= 25, time= 0.8c) force= 0.1, time= 200d) force= 10, time= 2(its b, c, and d)(also in order to find answer they have to add to get the unit)ex= 25x.8=20 or .1x200=20
Answers: 1
Physics, 22.06.2019 16:30, lunarwoo
A14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.
Answers: 2
Two cubes, one silver and one iron, have the same mass and temperature. a quantity q of heat is remo...
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