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A 33.6 kg beam is attached to a wall with a hinge and its far end is supported by a cable. The angle between the beam and the cable is 90o. If the beam is inclined at an angle of ? = 17.7° with respect to horizontal. What is the horizontal component of the force exerted by the hinge on the beam? What is the magnitude of the force that the beam exerts on the hinge?
Two parallel plates, each of area 3.72 cm2, are separated by 4.50 mm. The space between the plates is filled with air. Calculate the amount of the electric charge stored on each plate
Oppositely charged parallel plates are separated by 5.30 mm. A potential difference of 600 V exists between the plates. What is the magnitude of the electric field between the plates
A household pays $1850 per year for the supplied electricity. find the average power of energy consumption
A block of mass 2.50 kg is pushed 2.60 m along a frictionless horizontal table by a constant 14.0 N force directed 25.0ª below the horizontal. Determine the work done by the normal force exerted by the table
The temperature of the air in a resonator is 15°C, when a tuning fork vibrates at one end, the spacing between tow successive resonances is found to be 50 cm. find the frequency of the tuning fork.
Two loudspeakers are placed above and below each other and driven by the same source at a frequency of 4.50x10^2 Hz. An observer is in front of the speakers (to the right) at point O.
Two slits spaced 0.500mm apart are placed 77.0cm from a screen. What is the distance between the second and third dark lines
A solid uniform brick is placed on a sheet of wood. When one end of the sheet is raised , What is the width w of the brick
Two charged spheres are 8.45 cm apart. They are moved and the force on each of them is found to have been tripled. How far apart are they now.
A 3.00kg mass and a 5.00kg mass hang vertically at opposite ends of a rope that goes over an ideal pulley. what is the magnitude of the acceleration of the masses
Starting from rest, a 4.30-kg block slides 2.00 m down a rough 30.0° incline. Determine the work done by the force of gravity
A small immersion heater is rated at 352 W. Estimate how long it will take to heat a cup of soup (suppose this is 250 mL of water) from 20°C to 50°C.
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