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A car drives over a hilltop that has a radius of curvature 120 m at the top of the hill with a speed of 20.0m/s. What is the normal force felt by the car tires?
A capacitor with air between its plates is charged to 80 V and then disconnected from the battery. What is the dielectric constant of this glass
A 50 turn coil of wire has an area of 0.33 m2. A uniform magnetic field of 0.80 T points in a direction that is perpendicular to the plane of the wire. What is the average value of the induced voltage during the time the magnetic field reversed dir..
2. The Horseshoe Falls on the Canadian side of Niagara Falls have water that moves horizontally at 9.0 m/s which then falls 53 m vertically into the Niagara River below. Ignoring any air resistance, at what angle does the falling water enter th..
A simple harmonic oscillator has a total energy of E. Determine the kinetic and potential energies when the displacement is one fourth the amplitude
An 82 kg parachutist descends through a vertical height of 350 m with constant speed. Find out the increase in entropy produced by the parachutist; assume the air temperature is 21 degrees C.
A future space station in orbit about the earth is being powered by an electromagnetic beam from the earth. What are the rms values of the electric and magnetic fields
neglect the initial speed of the roller coaster. A neautral water molecule in its vapor state has an electric dipole moment of magnitude 6.2x10^-30 C.m. How far apart are molecule's center of positive and negative charge.
The resonant frequency of a series RCL circuit is 13.8 kHz. The inductance and capacitance of the circuit are each quadrupled. What is the new resonant frequency
A 100N box initially at rest is pulled by a horizontal rope on a horizontal table the coefficients of kinetic, What is the friction force on the box if the pull is 35N and 75N
What must be the mass m2 of the hanging block if it is to descend 11.0m in the first 3.00s after the system is released from rest
A tank of gasoline (n = 1.40) is open to the air (n = 1.00). A thin film of liquid floats on the gasoline and has a refractive index that is between 1.00 and 1.40. What is the refractive index of the film
q1. a person exerts a horizontal force of f 175 n in the test apparatus shown in the drawing. h 0.25 m. find the
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