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In a water tank experiment, water waves are generated withtheir crests 2.5 cm apart and parallel. They pass though twoopenings 5.0 cm apart in a long wooden board.
(a) If the end of thetank is 2.0 m beyond the boards, where would you stand, relative tothe straight- through direction, so that you receive little or nowave action?
(b) How many such places are there on each side of the straight through position?
This problem is in a beaker. The large container shown in the picture above is filled with a liquid of density 1.1E3 kg/m3. A small hole of area A=2.5E-6 m2 is open in the side of the container a distance h below the liquid surface, which allows a..
A 2.6-kg object hangs at one end of a rope that is attached to a support on a railroad car. When the car accelerates to the right, the rope makes an angle of 5.0° with the vertical, as shown in the figure below. Find the acceleration of the car.
The cable lifting an elevator is wrapped around a 1.0-m-diameter cylinder that is turned by the elevator's motor. How long does it take for the elevator to stop
The variable capacitor in the tuner of an AM radio has a capacitance of 2820pF when the radio is tuned to a station at 571kHz. What must the capacitance be for a station
Let's build a helium atom. Start with a nucleus with 2 protons and 2 neutrons, Calculate the energy gained by the system constructing this atom
A cannon tilted up at a 30° angle fires a cannon ball at 65 m/s, What is the ball's impact speed on the ground below
A long solenoid (cross-sectional area = 1.0 x 10-6 m2, number of turns per unit length = 2380 turns/m) is bent into a circular shape so it looks like a doughnut. Find the emf induced in the toroid
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starting from rest, a basketball rolls from the top to the bottom of a hill, reaching a translational speed of 5.1 m/s. What is the height of the hill
the football has a mass of .40kg and the quarterback that threw the ball accelerated it from rest to 25 m/s in a distance of .60m. what force did the player's hand exert on the ball
A fixed system of charges exerts a force of magnitude 9 N on a 3 C charge. The 3 C charge is replaced with a 10 C charge. What is the exact magnitude of the force
atmospheric pressure as measured by a mercury barometer is 99.0 kPa, a patient is fed by intraveneous feeding. How high is the mercury in the barometer
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