Which statement is true about the law of conservation of energy for an object released from a certain height above the ground? a. in the absence of any external forces and at any point, the kinetic energy and the potential energy are always equal. b. in the absence of any external forces and at any point, the kinetic energy is always greater than the potential energy. c. in the absence of external forces and at any point, the potential energy is always greater than the kinetic energy. d. in the absence of external forces and at any point, the sum of the kinetic energy and the potential energy is always constant.
Answers: 2
Physics, 22.06.2019 04:30
You are traveling in a car going at a constant speed of 100km/h down a long, straight highway. you pass another car going in the same direction which is traveling at a constant speed of 80km/h. as measured from your car's reference frame this other car is traveling at −20km/h. what is the acceleration of your car as measured from the other car's reference frame? what is the acceleration of the other car as measured from your car's reference frame?
Answers: 2
Physics, 22.06.2019 08:30
Brutus, the dog, is pulling a bone to the left with a force of 20 n. lassie, another dog, is pulling a bone to the right with a force of 18n. what is the net force? a. b. c.
Answers: 1
Physics, 22.06.2019 19:20
Aproduction line at v. j. sugumaran's machine shop has three stations. the first station can process a unit in 7 minutes. the second station has two identical machines, each of which can process a unit in 16 minutes (each unit only needs to be processed on one of the two machines). the third station can process a unit in 10 minutes. â–¼ is the bottleneck station, with a bottleneck time of nothing minutes per unit (enter your response as a whole number).
Answers: 3
Physics, 22.06.2019 22:50
Which lists correctly orders nuclear reactions from most radioactive waste generated to least waste generated within a given period of time? o a. radioactive decay, nuclear fission, nuclear fusion o b. radioactive decay, nuclear fusion, nuclear fission o c. nuclear fusion, nuclear fission, radioactive decay o d. nuclear fission, nuclear fusion, radioactive decay
Answers: 3
Which statement is true about the law of conservation of energy for an object released from a certai...
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