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A steel cable with a cross-sectional area of 4.17 cm2 has a mass of 2.39 kg/m . If 356 m of the cable is hung over a vertical cliff, how much does the cable stretch under its own weight? The acceleration of gravity is 9.8 m/s 2 and Young's modulus is 1.93 x 1011 N/m2 . Answer in units of cm.
Determine the total amount of translational kinetic energy in a small classroom at normal room temperature. Suppose the room measures 5 meter by 12 meter by 3 meter
A person throws a ball upward into the air with an initial velocity of 15.0 m/s. Calculate how high it goes and how long it is on the air before it comes back to his hand
You ionize a hydrogen atom with a photon with wavelength 77.5nm. What orbital was the electron in before ejection
Light of a wavelength 450 nm is incident on a sodium emitter in a photoelectric effect apparatus. What is the cutoff frequency for the emitter
a slide projector needs to create a 96.0cm high image of a 1.80cm tall slide. the screen is 306 cm from the slide.a
An object is placed at a distance of 28 cm from a thin convex lens. The lens has a focal length of 9 cm. what are the values of the image distance and lateral magnification
Determine the resulting specific gravity when the three liquids in the containers A, B and C are mixed together.
A human hair is about 80.0 µm thick. If one uses a concave mirror with a focal length of 2.50 centimeter and obtains an image of -59.0 centimeter, find how far has the hair been located from the mirror
A 50 kg block of ice slides downa frictionless incline 1.5 m long and 0.89 m high. A worker pushes up against the ice, parallel to the incline, so that the block slides down at constant speed.
Given the Sun's distance from the center of the Milky Way and the Sun's period of revolution, how can we determine a lower bound for the mass of the Milky Way galaxy?
A cart loaded with bricks has a total mass of 21.2 kg and is pulled at constant speed by a rope. The rope is inclined at 27.2 ? above the horizontal and the cart moves 27.1 m on a horizontal floor. The coefficient of kinetic friction between groun..
A 36.0-kg child takes a ride on a Ferris wheel that rotates four times each minute and has a diameter of 20.0 m. What is the centripetal acceleration of the child
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