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Uniform metal rod, with mass of 3.4 kg and length of 1.5 m, is attached to a wall by a hinge at it's base. A horizontal wire bolted to the wall 0.75m above the base of the rod holds the rod atan angle of 30degrees above the horizontal. The wire isattached to the top of the rod.
A) Find the tension in the wire.B) Find horizontal component of force exerted on the rod bythe hinge.C) Find vertical component of the force exerted on the rod bythe hinge.
A string is fixed at both ends and is vibrating at 124 Hz, which is its third harmonic frequency. Determine the length of the string
Assuming that all photons reaching the solar cell give their energy to a charge carrier, what is the minimum power of a flash of light of wavelength 540nm that can be detected
A soccer ball is kicked with an initial speed of 27m/s at an angle of 23 degrees with respect to the horizon. Find the maximum height reached by the ball
An unknown material has a normal melting/freezing point of -20.6 °C, and the liquid phase has a specific heat capacity of 143 J/(kg C°). What is the latent heat of fusion of the unknown material
Which of the following must be true if we are to infer (calculate) a star's luminosity directly from the inverse square law for light.
A man looks at himself in a concave shaving mirror whose radius of curvature is 48 inches. What is the image's magnification
A pressurized cylindrical tank, 5.0 in diameter, contains water which emerges from the pipe at point C, with a velocity of 12 . Point A is 10 above point B and point C is 3 above point B. The area of the pipe at point B is 9×10?2 and the pipe narr..
If she is served 200 of coffee at 85 in a well-insulated container, how much ice at 0 must she add to obtain a final temperature of 33.
Astronauts put their spaceship into orbit about a planet. Theyfind that the acceleration of gravity at their orbital altitude isone fourth that at the planet's surface. How far above the planet'ssurface are they orbiting? Answer in terms of the pl..
Temperatures are often measured with electrical resistance thermometers. Suppose that the resistance of such a resistance thermometer is 162 when its temperature is 16.0 °C. What is the temperature of the liquid
A thin rectangular plate of uniform areal density ? = 2.90 kg/m2 has length of 34.0 cm and width of 24.0 cm. There is a circular hole of radius 6.00 cm with center at (x,y) = (11.00,10.00) cm in the plate. Calculate the mass of plate
The outside mirror on the passenger side of a car is convex and has a focal length of -6.9 m. find the magnification of the mirror
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