Abird has a kinetic energy of 3 j and a potential energy of 25 j. what is the mechanical energy of the bird?
3 j, because mechanical energy is the same as kinetic energy
22 j, because mechanical energy is the difference of the potential energy and kinetic energy
25 j, because mechanical energy is the same as potential energy
28 j, because mechanical energy is the sum of the potential energy and kinetic energy
Answers: 1
Physics, 22.06.2019 06:20
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Physics, 22.06.2019 10:00
Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix.b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds.c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer.d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.
Answers: 1
Physics, 22.06.2019 15:00
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Answers: 1
Abird has a kinetic energy of 3 j and a potential energy of 25 j. what is the mechanical energy of t...
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