Physics, 29.02.2020 03:28 choiboiqg5755
A rock of mass m is dropped to the ground from a height h. A second rock, with mass 2m, is dropped from the same height. Ignoring air resistance, when the second rock strikes the ground, its kinetic energy is.1. Twice that of the first rock2. Four times that of the first rock3. The same as that of the first rock4. Half as much as that of the first rock5. Impossible to determine
Answers: 1
Physics, 22.06.2019 04:30
Acrow drops a 0.11kg clam onto a rocky beach from a height of 9.8m. what is the kinetic energy of the clam when it is 5.0m above the ground? what is its speed at that point?
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Physics, 22.06.2019 10:30
In automobile steering wheel is shown what is the ideal mechanical advantage blank? if the ama is eight what is the efficiency of the steering wheel?
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Along wire of diameter 1 mm is submerged in an oil bath of temperature ∞ 31°c. the wire has an electrical resistance per unit length of 0.01 ω/m. if a current of 103 a flows through the wire and the convection coefficient is 500 w/m2·k, what is the steady-state temperature of the wire? from the time the current is applied, how long does it take for the wire to reach a temperature that is within 1°c of the steady-state value? the properties of the wire are 8000 kg/m3, 500 j/kg·k, and 20 w/m·k.
Answers: 3
A rock of mass m is dropped to the ground from a height h. A second rock, with mass 2m, is dropped f...
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