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Work done on a rolling cylinder
A solid cylinder utilized for smoothing concrete is rolling without slipping along a horizontal surface by a speed of 5.4 m/s. The cylinder has a radius R=0.58 m, mass m=69 kg and moment of inertia I=(1/2)mR2 . You bring the cylinder to rest by exerting a force on it. If the cylinder does not slip as you bring it to rest, what is the work done by your force, using only the cylinder as the system?
During an adiabatic expansion the temperature of 0.430 moles of argon (Ar) drops from 54 C to 15 C. How much work does the gas do
What is the magnification of an astronomical telescope whose objective lens has a focal length of 74 cm and whose eyepiece has a focal length of 2.9 cm
A street lamp weighs 146 N. It is supported equally by two wires that form an angle of 120° with each other.
A light beam containing red and violet wavelengths is incident on a slab of quartz at an angle of incidence of 85.3°. Find the dispersion of the slab
You have an organ pipe that resonates at frequencies of 800, 1120, and 1440 Hz but nothing between these. What is the fundamental frequency for this pipe
In extremely cold weather conditions where the inside thermostat is set to 27 C and the outside temperature is -20 C, How much energy might you lose in one week
A 20kg box slides 45m from the top down to the bottom of an incline that is 10 degrees to the horizontal. How much work is done by the force of gravity on the box
You are looking in the directly into one end of a long solenoid. The magnetic field at its center points at you. What is the direction of the current in the solenoid
A vacuum cleaner is plugged into a 120-V socket and uses 3.0Aof current in normal operation when the back emf generated by the electric motor is 72V. Find the coil resistance of the motor.
a dog running in an open field has components of velocity 3.2 and -1.6 at time 10.4 . for the time interval from
After 10.0 s, a spinning roulette wheel at a casino has slowed downto an angular velocity of +1.84 rad/s. Determine the angular displacement of the wheel
What is diameter of the circle
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