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A circular curve of highway is designed for traffic moving at60km/h/.
a.) If the radius of the curve is 150m, what is the correctangle of banking of the road?
b.) If the curve were not banked, what would be the minimumcoefficient of friction between tires and road that would keeptraffic from skidding at this speed?
Suppose two parallel conducting plates are separated by 0.45 cm of air. Find the maximum potential difference between the two parallel conducting plates in kV
A 25 kg child sits in a swing supported by two chains, each 2.7 m long. If the tension in each chain at the lowest point is 147 N, Find the force of the seat on the child at the lowest point
An insect sits on the edge of a spinning record that has a radius of 0.15 m. The insect%u2019s speed is 0.6 m/s. What is the insect's acceleration
A particle of charge 12uC and mass 3.8x10^-5kg is released from rest inside a parallel plate capacitor from the positive plate. How long does it take the particle to reach the negative plate
An emf of 22.0 mV is induced in a 497 turn coil when the current is changing at a rate of 9.0 A/s. What is the magnetic flux through each turn of the coil
Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 2.10×106N , one at an angle 10.0? west of north, What is the total work done by the two tugboats on the supertanker
A typical power plant uses some fuel as the source of heat (QH) to drive a heat engine that does work (W) to drive a generator that is connected to the electrical grid. What is the efficiency and how do we express this in power
A horizontal force of 80 N acts on a mass of 6 kg resting on a horizontal surface. Calculate the total energy expended in the acceleration
To construct a solenoid, you wrap insulated wire uniformly around a plastic tube 14cm in diameter and 60cm in length, What is the total length of wire you will need to meet these specifications
What the max speed of the oscillator?
A rod is measured to be 12cm by an observer moving at 0.60c with respect to the length of the rod. What is the proper length of the rod
An ice cube is dropped in a glass of oil (density= 900 kg/m^3). What fraction of the ice floats above the oil
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