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A volume of 7.2 m3 of glycerol (η = 0.934 Pa. s) is pumped through a 15 m length of pipe in 55minutes. The pressure at the input end of the pipe is 8.6 x105 Pa, and the pressure at the output end isatmospheric pressure. What is the pipe's radius?
A new electric power plant has an efficiency of 42%. how many are essentially lost as waste heat (in barrels of oil) to the environment
A freight car with a mass of 2500 kg rolls down an inclined track through a vertical distance of 1.5m. at bottom of the incline, on a level track, the car collides and couples with the identical freight car that was at rest. What percentage of th..
q1. a force vector points at an angle of 50.6deg above the x axis. it has a y component of 280 newtons. calculate the
Calculate the magnitude of the current density in the wire. Find out the work done by the hockey player on the puck. What is the change in kinetic energy of the puck.
0.550-kg glider, attached to the end of an ideal spring with force constant k = 440 N/m, undergoes SHM with an amplitude 0.040 m. Compute the maximum speed of the glider
A map suggests that Atlanta is 730 miles in a direction 5.00° north of east from Dallas. Modeling the Earth as flat, use this information to find the displacement from Dallas to Chicago
a 12.0 g plastic ball is dropped from a height of 2.50 m, How much mechanical energy was lost during the balls fall
question1a source emits 531.62-nm and 531.81-nm light.awhat least number of grooves is required for a grating that
Lithium, beryllium, and mercury have work functions of 2.30eV,3.90eV, and 4.50eV respectively. Find the maximum kinetic enery for the photoelectrons in each case
A block slides down an inclined plane, starting from rest and being pushed with a constant acceleration of 4.60 m/s2 over the distance of 20.80 cm. It then decelerates at the constant rate of 1.03m/s2 (because of friction), until it again comes to..
A charge of -3.55 nC and a charge of -5.65 nC are unconnected by a distance of 60.0 cm. Find the position at which a third charge of +7.20 nC can be located so that the net electrostatic force on it is zero.
Consider a uranium nucleus to be a sphere of radius R = 7.4x10^-15 m with a charge of 92 e distributed uniformly throughout its volume. What is the electric force exerted on an electron
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