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A tube well pumps out 2400kg of water per minute. If water is coming out with a velocity of 3m/s^2,what is the power of the pump? How much waork is done if the pump runs for 10 hours.
A string of mass 0.0003kg/m and 0.5m long is vibrating 200 cycles per second. What must be the tension? What hanging mass would generate this tension? I got 12N for tension. Is this correct? And how would you solve for hanging mass.
A horizontal incident beam consisting of white light passes through an equilateral prism. What is the dispersion (thetaV -thetaR) of the outgoing beam
A proton is confined within an atomic nucleus of diameter 3.5 fm. Estimate the smallest range of speeds you might find for a proton in the nucleus
The spacing between the lines in the pure rotational spectrum of 11B-2H (numbers are superscripts) is 3.9214E-11 s^-1, Calculate the bond length of this molecule
two circular current loops lie parallel to the x-y plane and are separated by a short distance along z. the currents
A toroid having a square cross section, 4.40 cm on a side, and an inner radius of 13.1 cm has 660 turns and carries a current of 0.801 A. What is the magnitude of the magnetic field inside the toroid
a car moving at 80 km/hr is brought to a stop in 5 seconds. How far did the car travel while stopping
The two stars in a binary star system have masses 2.2x10^30kg and 5.9x10^30kg. They are separated by 1.8x10^12m. What is the speed of the lightest star
A siren has a frequency of 906 Hz when it and an observer are both at rest. The observer then starts to move and finds that the frequency he hears is 1239 Hz. What is the seed of the obsrver
A 75-Kg athlete does a single-hand handstand. If the area of thehand in contact with the floor is 125 cm2, what pressureis exerted on the floor?
A solid uniform marble and a block of ice, each with the same mass, start from rest at the same height above the bottom of a hill and move down it. find Which is moving faster at the bottom of the hill
A tennis player hits a ball 2.0 m above the ground. The ball leaves his racquet with a speed of 23.0 m/s at an angle 5.5 degrees above the horizontal. By how much does the ball clear the net
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