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A cannon is fired horizontally from atop a 40.0 m tower. The cannon ball travels 145 m horizontally before it strikes the ground.With what velocity did the ball leave the muzzle.
A person is riding a bicycle, and its wheels have an angular velocity of 18.5 rad/s. Then, the brakes are applied and the bike is brought to a uniform stop. During braking, the angular displacement of each wheel is 17.5 revolutions. (a) How much time..
A surface completely surrounds a 3.5 × 10-6 C charge. Find the electric flux through this surface when the surface is (a) a sphere with a radius of 0.59 m, (b) a sphere with a radius of 0.16 m, and (c) a cube with edges that are 0.27 m long.
An electron moves in a circular path perpendicular to a constant magnetic field with a magnitude of 4.50 mT. obtain the speed of the electron
A 2.5-kg particle oscillates on a spring with spring constant 85 N/m. At time t = 1.0s, What are the maximum speed and acceleration of the particle
A conducting rod slides down between two frictionless vertical copper tracks at a constant speed of 4.0 m/s perpendicular to a 0.50-T magnetic field, What is the mass of the rod?
A 50 kg cylinder of radius 20 cm starts from rest and reaches 2.0 revolutions per second after 2.0 seconds. Through what angle did it turn
The exhaust temperature of a Carnot heat engine is 250°C, What is the intake temperature if the efficiency of the engine is 27.0%
A satellite in a circular orbit around the earth with a radius 1.011 times the mean radius of the earth is hit by an incoming meteorite. Find the total work done by gravity on the satellite fragment
q1. assume acceleration is constant during each time interval but not necessarily the same in both intervals what
find What is the impulse delivered by the bat.
A car owner forgets to turn off the headlights of his car while it is parked in his garage. how long will it take the battery to completely discharge
The planet Earth travels in a circular orbit at constant speed around the Sun. What is the net work done on the Earth by the gravitational attraction between it and the Sun in one complete orbit? Assume that the mass of the Earth is given by , the ma..
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