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A boy of mass 43.5 kg is initially on a skateboard of mass 2.00 kg, moving at a speed of 10.3 m/s. The boy falls off the skateboard, and his center of mass moves forward at a speed of 11.1 m/s. Find the final velocity of the skateboard.
The bar is held by a cord that makes a 90? angle with respect to bar and 50 ? with respect to wall. Illustrate what is the magnitude of the horizontal force Hx on the pivot? The acceleration of gravity is 9.8 m/s2.
What temperature change would cause a 0.10 percent increase in the volume of a quantity of water that was initially at 20 degrees celsius.
An object with mass m1=%.00kg rests on a frictionless horizontal table and is connected to a table that passes over a pulley and is then fastened to a hanging object with mass m2=10.0kg. Find out the acceleration of each object and the tension cab..
An RLC circuit has a resistor (R=175 ohms), a capacitor (C=4.78 microFarads) and an inductor (L=32.1mH). The frequency of the current is 652 Hz. What is the total impedance in the circuit
In a baseball game, the catcher stops a 35 m/s pitch. How much net work is done on the baseball as it is caught? what average force did the mitt exert on the ball
An object 2.00 cm high is placed 41.0 cm to the left of a converging lens with a focal length of 30.0 cm, Determine the magnification of the final image
Find out (a) the coefficient of kinetic friction between m2 and the incline, (b) the acceleration of each mass, and (C) the tension in the string.
How long is the bridge? Write down an equation for the bridge's height. And how far from the center of the bridge are two points if bridge's height at those points is 80 meters.
How fast would it be moving after it had fallen a distance of 0.010-m? (Assume that the gravitational force is constant over the distance of the fall, and that the star is not rotating.)
what is the absolute magnitude of the force on each charge?
A bullet is fired horizontally from a 70 m tall building with a speed of 1100 m ? s. Calculate the vertical component of its velocity
You stand with your nose 5.0cm from the surface of a reflecting ball, and your nose's image appears three-quarters full size. What is the balls diameter?
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