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Liquid water with density p,(rho), is filled on top of a thin piston in a cylinder with cross-sectional area A and total height H. Air is let in under the piston so that it pushes up, causing the water to spill over the edge. Derive the formula for the air pressure as a function of piston elevation from the bottom, h.
A block resting on a smooth surface explodes into three pieces. A 465 gram piece travels at 1.7 m/s, a 1999 gram piece travels 0.7 m/s, calculate the mass and direction of the third piece.
Mary and her younger brother Alex decide to ride the carousel at the State Fair. Mary sits on one of the horses in the outer section at a distance of 2.0 m from the center. What is Mary's angular speed M and tangential speed vM
A particle undergoes two displacements, measured from the positive x-axis, with counter- clockwise positive, find the magnitude of the second displacement in meters
define the hazards for astronauts inside any spacecraft moving in the vicinity of a pulsar.
A laserpointer has a beam intensity of 55 W/m2 and a beam radius of 2.1 mm. what is the force on the car
A car traveling initially at 53.5 km/h crashes into a brick wall. The front end of the car collapses, Find the horizontal force exerted on him by the seat harness
1. a spacecraft that is initially at rest turns on its engine at t 0. if its mass is m 3000 kg and the force from
A battery with an emf of 12.6 V and internal resistance of0.83Ω is connected across a load resistor R. If the current inthe circuit is 0.85 A, what is the value of R? What power is dissipated in the internal resistance of the battery?
A turntable is a uniform disc of mass 1.2 kg and radius1.3 *10^-1 m . The turntable is spinning at a constant rate of f0 = 0.5 Hz. What is the magnitude of the frictional torque
A river that is 207 m wide flows due east at a uniform speed of 1.9 m/s. What is the magnitude of the boat's velocity
The coefficient of kinetic friction is 0.350. Illustrate what should be the magnitude of P, so that the net work done by it and the kinetic frictional force is zero?
A basketball can be modeled as a thin walled spherical shell with a mass of 0.600 kg and a radius of 12.0 cm. What is the rotational kinetic energy of the ball
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