Physics, 21.11.2019 01:31 breanastone15
When five people whose average mass is 80 kg sit down in a car, they find that the car drops 0.91 cm lower on its springs. then they get out of the car and bounce it up and down. the acceleration of gravity is 9.8 m/s 2 . what is the frequency of the car’s vibration if its mass (empty) is 3000 kg
Answers: 1
Physics, 21.06.2019 21:00
An electric current in a wire will push or pull on a permanent magnet. which statement best explains how an electric current creates an electromagnetic force on another magnet?
Answers: 2
Physics, 22.06.2019 18:30
Asmall grinding wheel has a moment of inertia of 4.0×10−5 kg⋅m2 . what net torque must be applied to the wheel for its angular acceleration to be 150 rad/s2 ?
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
Physics, 23.06.2019 00:30
Which of the following is a true statement about the acceleration ~a of the pendulum bob ~a is equal to the acceleration due to gravity. ~a is perpendicular to the bob’s trajectory. ~a is equal to the instantaneous rate of change in velocity. ~a is tangent to the bob’s trajectory.
Answers: 1
When five people whose average mass is 80 kg sit down in a car, they find that the car drops 0.91 cm...
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