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Concept Simulation 7.1 illustrates the physicsprinciples in this problem. An astronaut in his space suit and witha propulsion unit (empty of its gas propellant) strapped to hisback has a mass of 147 kg. During a space-walk, the unit, which hasbeen filled with propellant gas, ejects some gas with a velocity of+31.0 m/s. As a result, the astronaut recoils with a velocity of-0.247 m/s. After the gas is ejected, the mass of the astronaut(now wearing a partially empty propulsion unit) is 163 kg. What percentage of the gas propellant in the completely filledpropulsion unit was depleted?
at one point in a thermodynamic cycle one mole of an ideal gas is under 100 pa of pressure and has a volume of 2 cubic
A playground merry-go-round of radius R = 1.60 m has a moment of inertia I = 275 kg · m2 and is rotating at 8.0 rev/min about a frictionless vertical axle. What is the new angular speed of the merry-go-round
An athlete crosses a 29 m wide river by swimming perpendicular to the water current at a speed of 0.6 m/s relative to the water. How fast is the water flowing relative to the ground
q1. determine the work done by 9.00 of water when it is all boiled to steam at 100. suppose a constant pressure of
A 1.98 10-9 C charge has coordinates x = 0, y = ?2.00; a 2.73 10-9 C charge has coordinates x = 3.00, y = 0; and a -4.95 10-9 C charge has coordinates x = 3.00, y = 4.00, where all distances are in cm.
A 0.700-kg ball is on the end of a rope that is 0.90 m in length. The ball and rope are attached to a pole and the entire apparatus, What is the tangential speed of the ball
q1. a 35.0-kg child swings in a swing supported by two chains each 2.90 m long. the tension in each chain at the lowest
an athlete executing a long jump leaves the ground at a 30.9o angle and travels a horizontal distance 7.03m. what was
A mass of 59.72 kg is attached to a light string that is wrapped around a cylindrical spool of radius 10 cm and moment of inertia 4.00 kg * m^2. How long does it take to reach the floor
Steam moves into the cylinder of a steam engine at a constantpressure of 2.00 x 10^5 Pa. How much work is done during one stroke
A 0.629-nm photon collides with a stationary electron. After the collision, the electron moves forward and the photon recoils backwards. Find the momentum of the electron
An electron is moving at a speed of 8.0 103 m/s in a circular path of radius of 2.0 cm inside a solenoid. Find the strength of the magnetic field inside the solenoid
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