Physics, 25.06.2019 20:40 alosnomolina1122
Astuntman wants to bungee jump from a hot air balloon 60.0 m above a the ground. he will use a uniform elastic cord, tied to a harness around his body, to stop his fall at a point 10.0 m above the ground. model his body as a particle and the cord as having negligible mass that obeys hooke's law. in a preliminary test, hanging at rest from a 5.00 m length of the cord, he finds that his body weight stretches it by 1.30 m. he will drop from rest at the point where the top end of a longer section of the cord is attached to the stationary balloon. hint: the spring constant changes with a longer piece of cord. a) what lenght of cord should he use? b) what maximum acceleration will he experience?
Answers: 2
Physics, 22.06.2019 11:50
The electric field between square plates of a parallel-plate capacitor has magnitude e. the potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. the magnitude of the electric field between the plates is now equal to a)e b)e/4 c)e/2 d)4e e)2e
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Physics, 22.06.2019 12:00
In an experiment, how can i change human errors? be specific.
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Physics, 22.06.2019 18:30
Ahot-air balloon takes off from the ground traveling vertically with a constant upward acceleration of magnitude g/4. after time interval δt, a crew member releases a ballast sandbag from the basket attached to the balloon. how many seconds does it take the sandbag to reach the ground? (express your answer in terms of δt)
Answers: 2
Astuntman wants to bungee jump from a hot air balloon 60.0 m above a the ground. he will use a unifo...
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