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A ball of mass M = 17 kg is suspended from a vertical inextensible string of length l = 1.5 m. A bullet of mass m = M/2 traveling with a horizontal velocity v = 9sqrt(g*L) collides with the ball and gets stuck inside. As a result of the impact the ball moves in a vertical circle of radius L. Assume that the string remains taut throughout the motion. What is the velocity of the ball-bullet system at the highest point of the trajectory (Answer in units of m/s)? Also, what is the tension in the string at this point (Answer in units of N)? (g=9.8m/s^2).
A skier of mass 62.00 kg is pulled up a slope by a motor-driven cable. (a) Explain how much work is required to pull him 55.00 m up a 30° slope (assumed frictionless) at a constant speed of 3.40 m/s?
An electron enters a region of space containing a uniform 0.0000227-T magnetic field. Its speed is 115 m/s, Find the radius r of the electron\'s path, and the frequency f of the motion
A 46 kg skater is standing still in front of a wall. By pushing against the wall she propels herself backward with a velocity of - 1.2 m/s. Her hands are in contact with the wall for 0.8 s. Ignore friction and wind resistance.
Two converging lenses which have focal lengths of +3.0 cm and +2.0 cm are 10 cm away from each other. find the height of the image formed by the seconds lens
Illustrate what is the highest point above the water she reaches? If she walked off the diving board rather than springing up would she be travelling faster, slower, or at teh same speed when she hits the water?
A plastic rod is rubbed with a cloth, and in the process it acquires a charge of ?2.1×10E?8C. How much does the mass of the rod increase by
The electric potential at a position located a distance of 22.2 mm from a positive point charge of 8.40×10-9C, Calculate the value of the second charge
A solenoid is constructed with a total of 1500 turns wound around a length of 25 cm. A constant current of 1.7 A flows through the solenoid. Calculate the magnetic force on the proton
The length of a beam increases by 1.26mm when its temperature is raised from 29.87oC to 71.49 oC. What is the length of the beam at the initial temperature
Next, a beaker of water is placed so that the iron block is submerged in the beaker not touching the bottom. What mass (in kg) is now necessary to balance the scales
An automobile and a truck start from rest at the same instant, with the automobile at first at some distance behind the truck. The truck has a constant acceleration of 2.01.
compute approx the rate of heat transfer on to the window surface if the inside surface is maintained at 5 Deg C?
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