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Water is pumped from a lower reservoir to a higher reservoir with a pump that draws 20 kW of electrical power. The free surface of the upper reservoir is 45 m higher than that of the lower reservoir. If the flow rate of water is gauged to be 0.03 m^3/s, Decide the power lost to friction in this setup. Take water = 1000 kg/m3
Two 125 W (122 V) lightbulbs are wired in series, How much power is dissipated by each bulb
A cylinder with a movable piston contains gas at a temperature of 27°C, a volume of 1.5 m³, and an absolute pressure of 20,000 Pa. What will be the final temperature if the gas is compressed 2.7 m³ and the absolute pressure increases to 80,000 Pa.
A 17.0 m-long copper wire, 2.10 mm in diameter including insulation, is tightly wrapped in a single layer with adjacent coils touching, What is the length of the solenoid
The amplitude of a system moving with simple harmonic motion is doubled. The total energy will the be:
A horizontal steel bar, 4m long and 2 cm diameter is imbedded in two concrete walls. A 2000 kg mass is hung from its center. By how much does the center sag
A 18.0 kg loudspeaker is suspended 2.40m below the ceiling by two 4.10m long cables that angle outward at equal angles. What is the tension of each of the cables.
A bullet of mass 11.4 g is fired into an initially stationary block and comes to rest in the block. Find the initial speed of the bullet
A 1000kg car coasting at 72.0km/h on a level frictionless road comes to a 15 degree incline. Calculate how far the car will travel before coming to rest
hen there's no torque applied, it slows down from 1800 rpm to rest in 57.0 s. Now we want to make it come to rest from 1200 rpm in 4.00 s by applying a constant torque on it. What is the minimum torque applied
the position of a 50 g oscillating mass is given by xt 2.0 cm cos5t where t is in seconds. determine the following. a
this is a regulated dc power supply design problem. the students must choose the values of the following parameters
A rubber ball with a radius of 3.2 cm rolls along thehorizontal surface of a table with constant linear speed v. Whenthe ball rolls off the edge of the table, it falls 0.66 m to thefloor below. If the ball completes 0.37 revolution during its fall, w..
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