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A 60.0kg swimmer stands at the edge of a 200kg boat that is motionless on the water of a lake. If the swimmer dives from the boat in a horizontal direction due east at 8.00m/s, calculate the velocity of the boat if friction between the boat and the water is neglected.
A simple pendulum with a period T = 2.00 s is attached to the ceiling of an elevator which is initially at rest, Calculate the period of oscillations when the elevator accelerates downwards
a snowboarder has a mass of 70 kg and is being carried by a lift. The lift has a constant inclination of 30o, what power must the motor produce to achieve the task
Demonstrate that gravitational energy is not extensive: show that the gravitational energy of a sphere of radius 'r' and uniform density varies with volume V^n and find the exponent 'n'.
A plastic cylinder of length 36 cm its ends ground to convex (from the rod outward) spherical surfaces, each having radius of curvature 16 cm. How far will the image of the object lie from the right end
A 72 skydiver can be modeled as a rectangular "box" with dimensions 25 40 1.8 . What is his terminal speed if he falls feet first
R-134a is flowing at 1kg/s and throttled from 850 kPa and 40 C to - 40 C. Heat is gained at a rate of 1 kJ/s from the surroundings at 25 C
A satellite is in orbit at a height of 600 km above the Earth's surface. Find the orbital period of the satellite
q1. a projectile is launched from earths surface at a certain initial velocity at an angle above the horizontal
A 8500 kg boxcar traveling at 16.8 m/s strikes a second boxcar at rest. What is the mass of the second car
The electric field at point P just outside the outer surface of a hollow spherical conductor of inner radius 10 cm, What is it on the outer surface
A 0.3 kg ball traveling at 5 m/s strikes a wall and rebounds elastically, the collision took 0.02 seconds. What is the Impulse? What is the force on the wall
An electric field applies a force of 9.11x10^-16 N to an electron emitted from a cathode of a cathode ray tube at essentially zero velocity
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