Physics, 30.07.2019 22:00 ellemarshall13
Achild is sitting on the seat of a swing with ropes 10 m long. her father pulls the swing back until the ropes make a 47º angle with the vertical and then releases the swing. if air resistance is neglected, what is the speed of the child at the bottom of the arc of the swing when the ropes are vertical?
Answers: 1
Physics, 22.06.2019 13:30, adrian1742
In a series circuit the __ is the same at every point
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Physics, 22.06.2019 19:20, anaiyamills
Two kilograms of air within a piston–cylinder assembly executes a carnot power cycle with maximum and minimum temperatures of 800 k and 300 k, respectively. the heat transfer to the air during the isothermal expansion is 60 kj. at the end of the isothermal expansion the volume is 0.4 m3. assume the ideal gas model for the air. determine the thermal efficiency, the volume at the beginning of the isothermal expansion, in m3, and the work during the adiabatic expansion, in kj.
Answers: 1
Physics, 22.06.2019 19:30, cocoabean1981
The ability to make things happen is also called a. heat b. force c. matter d. energy
Answers: 2
Achild is sitting on the seat of a swing with ropes 10 m long. her father pulls the swing back until...
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