Physics, 24.05.2021 22:10 myiacoykendall
A 2.00 KG brick falls from the top of a building 6.00 M above the ground. What is the kinetic energy of the brick just before it reaches the ground
Answers: 2
Physics, 22.06.2019 05:00
Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.
Answers: 1
Physics, 22.06.2019 10:30
An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.
Answers: 2
Physics, 22.06.2019 11:00
If a simple machine reduces the strength of a force, what must be increased?
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Physics, 22.06.2019 18:20
An object dropped from cliff falls with a constant acceleration of 10 metre per second square find its speed of two seconds after it was dropped
Answers: 2
A 2.00 KG brick falls from the top of a building 6.00 M above the ground. What is the kinetic energy...
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