Physics, 02.08.2019 00:50, strawberrymochi1078
Aball falling through the air has (the ground is the zero reference point) question 19 options: both potential and kinetic energy only kinetic energy only potential energy neither potential energy nor kinetic energy only thermal energy question 20 (1 point) when a fast moving car brakes to a stop, the brakes heat up because of friction. this is an example of question 20 options: one form of energy being converted to another form energy being created energy being destroyed periodic motion elastic motion
Answers: 2
Physics, 22.06.2019 02:10, kernlife
Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.
Answers: 3
Physics, 22.06.2019 13:10, kelonmazon2492
The bar of prob. 5/82 is repeated here. the ends of the 0.4-m bar remain in contact with their re- spective support surfaces. end b has a velocity of 0.5 m/s and an acceleration of 0.3 m/s2 in the di- rections shown. determine the angular accelera- tion of the bar and the acceleration of end a.
Answers: 3
Physics, 22.06.2019 14:30, raoufhanna
A58-kg boy swings a baseball bat, which causes a 0.140-kg baseball to move toward third base with a velocity of 38.0 m/s.
Answers: 2
Physics, 22.06.2019 16:20, devinfolds
Which best describes what forms in nuclear fission? a. two smaller, more stable nucleib. two larger, less stable nucleic. one smaller, less stable nucleusd. one larger, more stable nucleus
Answers: 1
Aball falling through the air has (the ground is the zero reference point) question 19 options: bo...
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