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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.
if the temperature inside a room is 298k and the temperature outside is 263k calculate the maximum value of r relative
You have a convex lens of focal length 3cm and NA=0.6. Light diffracts from two pinholes separated by a distance d. What is the smallest d can resolve using green light and what is the diameter of the lens?
An 11.0-W energy-efficient fluorescent light bulb is designed to produce the same illumination as a conventional 40.0-W incandescent light bulb. How much money does the user of the energy-efficient bulb save
A person of mass 75 kg stands at the center of a rotatingmerry-go-round platform of radius 2.5m and moment of inertia 1100 kgm2. Calculate the rotational kinetic energy of the system
A solenoid 12.0 cm in diameter and 60.0 cm long is made from copper wire of diameter 0.100 cm, with very thin insulation. What is the magnetic field at its center
A square wire 2.0 cm on each side is oriented so that 5.00 mT magnetic field makes a 30 degree angle with the normal to the plane of the square. if a 1.0 mA current causes a 25 N x m torque on the wire, how many loops does the wire make?
Two 68 g ice cubes are dropped into 234 g of water in a thermally insulated container. If the water is initially at25°C, and the ice comes directly from a freezer at -15°C, what is the final temperature at thermal equilibrium? (Neglect the heat capac..
A satellite is in geosynchronous orbit., What is the satellite's speed and What additional speed is required for the satellite to escape Earth's gravity completely
A highway curve with radius 950{\rm ft} is to be banked so that a car traveling 48.0{\rm mph} will not skid sideways even in the absence of friction. At what angle should the curve be banked?
A 0.027 kilogram bullet is fired vertically at 235 m/s into a 0.15 kilogram baseball that is initially at rest. Find how high does the combined bullet and baseball rise after the collision
The amplitude of an oscillator decreases to 68.7% of its initial value in 30.0s. What is the value of the time constant
On a banked race track, the smallest circular path on which vehicles can move has a radius r1 = 110 meter, Determine the smallest speed the vehicle can move around the track out relying on friction
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