Physics, 25.01.2020 21:31 ayoismeisalex
Suppose a vacuum cleaner uses 120 j of electrical energy. if 45 j are used to pull air into the vacuum cleaner, how efficient is the vacuum cleaner.
Answers: 2
Physics, 21.06.2019 13:00, mohammedel04
Identify the error in the sentence. my cat was so enormously overweight that the vet suggested, much to my cat's dismay putting him on a diet. a. overweight c. dismay b. suggested, d. diet.
Answers: 2
Physics, 22.06.2019 19:00, deonnaturner68p7hz7y
The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.
Answers: 1
Physics, 22.06.2019 19:30, diyagawande
Complete these sentences. if a roller coaster train has a potential energy of 1,500 j and a kinetic energy of 500 j as it starts to travel downhill, its total energy isj. once the roller coaster train gets closer to the bottom of the hill, its kinetic energy increases to 1,100 j, and its potential energy decreases to j. when the train reaches the bottom of the track and is traveling along the ground, its kinetic energy isj.
Answers: 1
Suppose a vacuum cleaner uses 120 j of electrical energy. if 45 j are used to pull air into the vacu...
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