Problem based on string breaking
A stone of mass 0.31 kg is tied to a string of length 0.50 m and is swung in a horizontal circle with speed v. The string has a breaking-point force of 45 N. What is the largest value v can have without the string breaking?
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A racing car travels with a constant tangential speed of 75 m/s around a circular track with a radius 625 m. Find (a) the magnitude of the car's total acceleration and (b) the direction of its total acceleration relative to the radial direction.
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How many elastic scatters, on the average, are required to slow a 1-MeV neutron to below 1 eV in (a) 16O and in (b) 56Fe?
A vertical cylindrical cylinder, closed at the bottom end, contains 0.0100 moles of gas. It is fitted at the top with a piston, which can move freely. The mass of the piston is 14.0 kg and the initial height of the piston above the bottom of the c
What mass of water (in grams)is contained in 2.8L of the vapor above this solution at 55 celcius? the vapor pressure of pure water at 55 celcius is 118 torr.
A solution of 350mg of optically active 2-butanol in 10 mL of water, placed in a 20 cm cell shows an optical rotation of +6 .24o. What is the specific rotation of this compound?
A 2.80-cm diameter coin is placed a distance of 25.0 cm from a convex mirror which has a focal length of -12.0 cm. Determine the image distance and the diameter of the image.
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