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Calculate the fluid force (in Newtons) on a square plate with aside of 2 m that is submerged at ahorizontal angle of 30°. Assume that the top edge of the plate is located at the surface of the water.
A long straight wire lying along the x-axis carries a constant 5 A current along the positive x direction. A small 5mm diameter loop lies in the x-y plane centered at y = 2m. If the loop is suddenly stretched so that its area shrinks to zero in 0...
A huge explosion is heard 77.7 miles away. How long does it take the sound to travel that far
A mass attached to a spring stretches 2.5 cm from equallibrium. What is the angular frequency of the oscillation
a 2.0microf capacitor and a 4.0microf capacitor are connected in series across 1000 v. the charged capacitors are then
A person is riding a bicycle, and its wheels have an angular velocity of 13.9 rad/s. What is the anguar acceleration (in rad/s2) of each wheel
Radio astronomers often study the radiation emitted by a hydrogen atom from a transition between the two hyperfine levels associated with the ground state
The acceleration of gravity is 9.81 m/s^2. Assuming that air resistance is simply a constant 96 N force on the person during the fall, identify the person's velocity just before hitting the net. Answer in units of m/s.
A luge and its rider, with a total mass of 81 kg, emerge from a downhill track onto a horizontal straight track with an initial speed of 30 m/s. If a force slows them to a stop at a constant rate of 3.9 m/s2, (a) what magnitude F is required for the ..
Two identical 13.0- balls, each 22.9 in diameter, are suspended by two 35.0- wires, How hard does each ball push on the other one
A 200KeV electron (i.e., an electron having kinetic energy of 200KeV) collides with a 200KeV positron (a particle with opposite charge of electron but) moving in the opposite direction in a head-on collision.
A previous nuclear accident occurred where a worker received 100J/Kg of gamma radiation. Estimate the dose in rem of the worker
A spring with spring constant 34N/m is attached to the ceiling, and a 4.6-cm-diameter, 1.4kg metal cylinder is attached to its lower end. what length of the cylinder is submerged
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