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(See Fluids in the News article titled "Motorized Surfboard," Section 5.2.2.) The thrust to propel the powered surfboard shown in Fig. P5.79 is a result of water pumped through the board that exits as a high-speed 2.75-in.-diameter jet. Determine the flowrate and the velocity of the exiting jet if the thrust is to be 300 lb. Neglect the momentum of the water entering the pump.
A flight attendant pulls her 70.0 N flights bag a distance of251 m along a level airport floor at a constant speed. The force she exerts is 31.0 N at an angle of 52.0° above the horizontal. Discover the work she does on the flight bag. Discover the w..
A cat rides a merry-go-round while turning with uniform circular motion. At time t1 = 2.00 s, the cat's velocity is v1 = (3.50) + (4.00 m/s), find the magnitude of the cat's centripetal acceleration
As a new electrical engineer for the local power company, you are assigned the project of designing a generator of sinusoidal ac voltage with a maximum voltage of 120 {\rm V}. What is the minimum rotation rate of the coil so it will produce the req..
An X-ray photon with a wavelength of 0.69 nm scatters off an electron at 123 degrees. What is the wavelength of the scattered X-ray in nm to 4 decimal places
A block of mass 10 kg rests on a horizontal surface. The coefficient of sliding friction is 0.1. What is the mass of the pulley if it is a solid cylinder
The space shuttle is in a 200-mile-high orbit. What is the shuttle's orbital period
Find the magnetic field inside a close - wound solenoid using 26 gauge wire. a current of 2 A and a magnetic core of permeability μ= 105 μo. What is an electromagnetic?
A light-rail train going from one station to the nexton a straight section of track accelerates from rest at 2.29m/s2 for 13.5 s. What is the distance between the stations
What is the distance between nodes? What is the transverse velocity of the string at the position x=2cm when t=1/4 sec?
The handle of a grinding wheel goes around a circle with a circumference of 1.2m. how much work is performed each revolution
how far from the base of the cliff will the ball land
Which of the following will create a magnetic field? Which of the following will emit an EM wave? Choose all that apply.
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