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Water is to be pumped from the large tank shown in Fig. P5.126 with an exit velocity of 6 m/s. It was determined that the original pump (pump 1) that supplies 1 kW of power to the water did not produce the desired velocity. Hence, it is proposed that an additional pump (pump 2) be installed as indicated to increase the flowrate to the desired value. How much power must pump 2 add to the water? The head loss for this flow is hL = 250 Q2, where hL is in m when Q is in m3/s.
calculate and compare the electron densities of a piece of aluminum 1 cm thick and a piece of iron of the same density
Assume the earth is a sphere with its mass evenly distributed throughout. Find the moment of inertia of the earth about its axis of rotation
A circuit containing a 5.9 H inductor has an alternating current supplied to it. If Irms is 6.6 A and Vp is 70 V, find the frequency of the signal. Express the answer with two decimal places
If the current is 0.55 A, what is the resistance of each bulb and what is the power dissipated in each bulb?
A basketball leaves a player's hands at a height of 2.10mabove the floor. The basket is 3.05m above the floor. what is the range of initial speeds allowed to make the basket
What is the magnitude of the potential difference between two points that are 1.15 cm and 2.99 cm from a proton? Answer in units of V.
1850 kg car is set in mottion on a level road by a spring constant k=2.40x10^6 N/m that has been compressed 1.50m. what is the intial mechanical energy of the system
2.0 kg ball moving with a speed of 3.0 m/s hits, elastically, an identical stationary ball as shown. If the first ball moves away with angle 30° to the original path,
At what frequency does a rider in the caboose hear the locomotive whistle? At what frequency des the rider in the caboose har the echo from the cliff wall?
We have studied four different laws authored by Sir Isaac Newton. For each of the following, indicate which law is best for the task described. Calculating the force exerted on a satellite by the Earth
A box with a total surface area of 1.01 m2 and a wall thickness of 4.81 cm is made of an insulating material. Find the thermal conductivity of the insulating material
While on a vacation to Kenya, you visit the port city of Mombassa on the Indian Ocean. Calculate the muzzle velocity necessary to hit a pirate ship 300 meters from the base of the fort
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