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You're in traffic court, arguing against a speeding citation. You entered a 220-m-radius banked turn designed for 81km/h, which was also the posted speed limit. The road was icy, yet you stayed in your lane, so you argue that you must have been going at the design speed. But police measurements show there was a frictional coefficient 0.16 between tires and road.
Is it possible you were speeding? What's the maximum possible speed?
a parallel-plate capacitor is charged to a potential difference of 120v. the area on each plate is 120cm2 and the
A small block with a mass of 0.117 kg is attached to a cord passing through a hole in a horizontal frictionless surface, How much work was done by the person who pulled on the cord
The first bright fringe of a diffraction grating of 600 ruling/mm is found at angle of 21 degrees.Find the wavelength of light of the source.
a wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 38 at 20degc. if its resistance increases
A 1.20 brick is sliding next to on a rough horizontal surface at 15.0 .If the brick stops in 4.30, how much mechanical energy is lost?
question1a 69 kg boy and a 45 kg girl apply an elastic rope at the same time as engaged in a tug-of-war on an icy
An artificial lens is implanted in a person's eye to replace a diseased lens. The distance between the artificial lens and the retina is2.82cm. What is the power of the implanted lens
A highway curve has a radius of 114 m. At what angle must the road be banked so that a car traveling at 26.7 m/s has no tendency to skid sideways on the road?
Two positive charges, each of magnitude 1 10-6 C, are located a distance of 14 cm from each other. obtain the magnitude of the force exerted on each charge
A 1.00-kg glider attached to a spring with a force constant of 25.0 N/m oscillates on a horizontal, frictionless air track. At t = 0 the glider is released from rest at x = -3.00 cm.
a 5000 african elephant has a resting metabolic rate of 2500 . on a hot day the elephants environment is likely to be
A police car has a 1000Hz siren. It is traveling at 35m/s on a day when the speed of sounds through air is 350m/s. What change of frequency does the observer hear
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