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A puck rests on a horizontal frictionless plane. A string is wound around the puck and pulled on with constant force. What fraction of the disk's total kinetic energy is due to the rotation?
A 3.00-kg object is fastened to a light spring, with the intervening cord passing over a pulley. The pulley is frictionless, and its inertia may be neglected.
A small circular hole 7.00 in diameter is cut in the side of a large water tank, 25.0 below the water level in the tank. The top of the tank is open to the air.
A boy of mass 49.4 kg is initially on a skateboard of mass 2.00 kg, moving at a speed of 10.3 m/s. Find the final velocity of the skateboard
A banked curve in a road is designed so that it can be safely navigated by cars traveling at 20 m/s in icy conditions (no friction). what is the horizontal of curvature for this curve
A coin 2.3 cm in diameter is held 37 cm from a concave spherical mirror of 40 cm radius of curvature. Locate the image of the coin
A lamp (R = 145 ), an electric heater (R = 24 ), and a fan (R = 49 ) are connected in parallel across a 121 V line. What is the current in the lamp
A placekicker must kick a football from a point 36.0 m (about 40 yards) from the goal. By how much does the ball clear or fall short of clearing the crossbar
For the polarizers in the figure, suppose the incident light is linearly polarized, What is the angle (in degrees) the initial direction of polarization makes with the first polarizer
A 0.570 kg ball is dropped from rest at a point 1.50 m above the floor. The ball rebounds straight upward to a height of 0.800 m. Illustrate what are the magnitude and direction of the impulse of the net force applied to the ball during the collis..
A space vehicle is traveling at 4200 km/h relative to the Earth when the exhausted rocket motor is disengaged, What is the speed (km/h) of the command module relative to Earth after the separation
A disc spins at 20 [rpm]. Calculate the period of rotation (which is the time interval required for 1 revolution)
You have a sample of Xenon in a rectangular container. The gas exerts a total force of 3.37 N perpendicular to one of the container walls, Calculate the pressure of your sample
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