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(1) A luggage carousel at an airport has the form of a section of a large cone, steadily rotating about its vertical axis. Its metallic surface slopes downward toward the outside, making an angle of 15.0° with the horizontal. A piece of luggage having mass 30.0 kg is placed on the carousel at a position 7.46 m measured horizontally from the axis of rotation. The travel bag goes around once in 37.5 s. Calculate the force of static friction exerted by the carousel on the bag.
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A floodlight with a mass of 20.0 kg is used to clarify the parking lot. The floodlight is supported at the end of a horizontal beam that is hinged to a vertical pole.
A 25 kg cannon shell is subjected to a constant acceleration of 1200 g while in the cannon barrel. What force is the burning propellant exerting on the shell
A 42.0 kg seal at an amusement park slides from rest down a ramp into the pool below. If the seal reaches the water with a speed of 4.30 m/s, what is the work done by kinetic friction
A solid ball of mass .30kg and radius .053m is rolling without slipping along a horizontal surface with a linear speed of 2.3m/s. obtain is its total Kinetic energy
A silicon sample is doped with phosphorus at 1.23 parts per million. Phosphorus acts as an electron donor, Calculate the number of free electrons per unit volume of the doped silicon.
Three charged particles are placed at each of three corners of an equilateral triangle whose sides are of length 2.8 . Two of the particles have a negative charge: = -6.7 and = -13.4 . The remaining particle has a positive charge, = 8.0 . What is ..
The circular top of a can of soda has a radius of 0.029m. The pull-tab has an area of 4.13 10-4m2. The absolute pressure of the carbon dioxide in the can is 1.4 x10^5Pa. Find out the force that this gas generates.
A steel band exerts a horizontal force of 76N on a tooth at point B. What is the torque on the root of the tooth about point A.
A box of bananas weighinh 40 N rests on a horizontal surface. The coefficient of static friction between the box, the magnitude of the frictional force is
A ten pound car wheel has a moment of inertia of 0.3 kg m2. How much torque is required to stop the wheel
The K-shell ionization energy of copper is 8979 eV. The L-shell ionization energy is 951 eV. Determine the wavelength of the Kα emission line of copper. What should be the minimum voltage be on an x-ray tube with a copper target in order to see the K..
"As a baseball is being caught, its speed goes from 30 to 0 m/s in about 0.005 s. Its mass is 0.145 kg. What is the baseball's acceleration in m/s2 and in g's
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