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In the figure here, two children are playing a game in which they try to hit a small box on the floor with a marble fired from a spring-loaded gun that is mounted on a table. The target box is horizontal distance D = 2.17 m from the edge of the table. Bobby compresses the spring 1.15 cm, but the center of the marble falls 29.5 cm short of the center of the box. How far should Rhoda compress the spring to score a direct hit? Assume that neither the spring nor the ball encounters friction in the gun.
A 72- kg ice hockey player standing on a frictionless sheet of ice throws a 6.2- kg bowling ball horizontally with a speed of 3.1 m/s
According to the universal law of gravitation the gravitational force on a small mass at the surface of the Earth is proportional to the product of the mass and the mass of the Earth and inversely proportional to the square of the distance between..
Two motorcycles are traveling in opposite directions at the same speed when one of the cyclists blasts his horn, what is the speed of the motorcycles
include a free body diagram. Be sure to label all forces with their agents and size. 1. A 5.0kg cat running along suddenly braces his furry feet on the slippery floot in order to stop.
A hill that has a 32.1% grade is one that rises 32.1 m vertically for every 100.0 m of distance in the horizontal direction. At what angle is such a hill inclined above the horizontal
For the 4-particle system find the moment of inertia about the y-axis, that passes through the two masses on the left-hand side of the system.
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 quasar 10 billion light years from Earth appears the same brightness as a star 5.9*10^4 light years away. How does the power ouput of the quasar compare with that of the star
A 12.25 mH coil carries a constant current of 0.35 A, clockwise. what potential difference will appear across the coil during this time
A Ping-Pong ball with mass 1.5 g is attached by a thread to the bottom of a beaker. Determine the diameter of the ball
A particle with a charge 3.2 x 10^-19 C is moving at a speed of 5x10^7 m/s that makes an angle of 40 degrees with respect to a uniform magnetic field B, Determine the magnetic field strength B
a 40 g block of of ice is cooled to -72 C and then is added to 650 g of water in an 80 g copper calorimeter at a temperature of 24C, determine the final temperature of the system consisting of the ice
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