Physics, 11.12.2019 05:31 keidyhernandezm
Asystem does 1.80×10^{8}j of work while 7.50×10^{8}j of heat transfer occurs to the environment. what is the change in internal energy of the system assuming no other changes (such as in temperature or by the addition of fuel)? (answer in ×10^{8}j)
Answers: 1
Physics, 21.06.2019 14:20
The eel has a certain amount of rotational kinetic energy when spinning at 14 spins per second. if it swam in a straight line instead, about how fast would the eel have to swim to have the same amount of kinetic energy as when it is spinning?
Answers: 1
Physics, 21.06.2019 22:10
The car hoist allows the car to be driven onto the platform, after which the rear wheels are raised. if the loading from both rear wheels is 1380 lb, determine the force in the hydraulic cylinder ab. neglect the weight of the platform itself. member bcd is a right-angle bell crank pinned to the ramp at c. the force is positive if in tension, negative if in compression.
Answers: 2
Physics, 22.06.2019 00:00
A1000-kg weather rocket is launched straight up. the rocket motor provides a constant acceleration for 16-s, then the motor stops. the rocket altitude 20-s after launch is 510-m. you can ignore any effects of air resistance. a. what was the rocket’s acceleration during the first 16-s? b. what is the rocket’s speed as it passes through a cloud 5100-m above the ground?
Answers: 1
Asystem does 1.80×10^{8}j of work while 7.50×10^{8}j of heat transfer occurs to the environment. wha...
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