22. the mechanical efficiency of any machine is always than 100 percent.
23. when a pol...
Physics, 26.11.2019 11:31 joaopetter21251
22. the mechanical efficiency of any machine is always than 100 percent.
23. when a pole vaulter flexes the pole, the pole vaulter increases the pole’s potential energy.
24. wind turbines convert energy into electrical energy.
Answers: 3
Physics, 21.06.2019 20:50
Identify the type of synthetic material used in each object
Answers: 1
Physics, 22.06.2019 00:00
Which is not a characteristic of a heat pump? a. it is used in air conditioners. b. it uses a refrigerant. c. it requires no work. d. it reverses the normal flow of thermal energy.
Answers: 2
Physics, 22.06.2019 08:30
Abike rider starts from rest and accelerates 28.0 meters down a slope in 5.00 seconds. what is her acceleration? select one: a. 3.21 m/sec2 b. 1.75 m/sec2 c. 9.80 m/sec2 d. 2.24 m/sec2
Answers: 3
Physics, 22.06.2019 11:00
The dot diagram represents the motion of the motorcycle as it moves from left to right
Answers: 3
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