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Problem: A uniform solid cylinder with a radius of 10 cm and a mass of 3.0 kg is rotating about its center with an angular speed of 33.4 rpm. What is its kinetic energy?
A 7.2-cm-diameter gear rotates with angular velocity (2.0 + 1/2t2) rad/s, where t is in seconds. At t = 9.0s, Find the tangential acceleration of a tooth on the gear
the headlights of on a small car are separated by 115 cm. at what maximum distance could you resolve them if the
A jet airplane in level flight has a mass of 8.66 × 104kg and the two wings have an estimated total area of 90.0m2. (a) What is the pressure difference among the lower and upper surfaces of the wings?
A laser used in cutting or drilling metals produces 10 ns pulses at 1.00 J per pulse. What is the peak power of each pulse
An electric potential is set up across a pair of parallel plates such that the left plate is at -594 V, What is the kinetic energy of the electron when it reaches the hole in the right plate
An electron traveling north enters a region where the electric field is uniform and points west. The electron:
A geologist searching for oil finds that the gravity at a certain location is 8 parts in 107 smaller than average. Estimate the size of the deposit
A 2,200-kg pile driver is used to drive a steel I-beam into the ground. calculate the average force the beam exerts on the pile driver
Begin with the appropriate law and derive an expression for the magnetic field at a point P a perpendicular distance R from a long straight wire carying a constant current i. Be sure show and explain all steps.
A cylindrical brass sleeve is to be shrink-fitted over a brass shaft whose diameter is 3.219 cm at 0°C. To what temperature must the sleeve be heated before it will slip over the shaft
A straight wire carrying a 2.7 A current is placed in a uniform magnetic field of magnitude 0.25 T directed perpendicular to the wire. Find the magnitude of the magnetic force on a section of the wire having a length of 10 cm
The figure below shows a conducting rod sliding along a pair of conducting rails. The conducting rails have an angle of inclination of theta= 39.0 degrees. What is the rod's terminal speed?
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