Cable lifts a elevator at a constant velocity
A cable lifts a 1000 kg elevator at a constant velocity for a distance of 33 m. What is the work done by each of the following?
(a) the tension in the cable
(b) the elevator's weight
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Do the electrons flow from the zincelectrode to the nickel electrode or from the nickel to the zinc?e. In which directions do the cations and the anions migrate through the solution?
A person is making homemade ice cream. She exerts a force of magnitude 20 N on the free end of the crank handle, and this end moves in a circular path of radius 0.32 m. The force is always applied parallel to the motion of the handle. If the handl
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Resistances of 8 ohms and 12ohms are connected in parallel between points A and B. This combination is in series with another of resistances X ohms and 16 ohms in parallel between points B and C. The voltage between points A and C is 16V (volts) a
Calculate (a) the work output of the turbine (kJ/kg), (b) the feed pump work (kJ/kg), (c) the heat rejected in the condenser (kJ/kg), and (d) the thermal efficiency of the plant.
If 5.00 g helium gas is added to a 1.00 L balloon containing 1.00 g of helium gas, what is the new volume of the balloon? Assume there is no change in temperature and pressure.
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