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A boat crosses a river with a width w=160m in which thecurrent has a uniform speed of 1.50m/s. The pilot maintains abearing perpendicular to river and a throttle setting to give aconstant speed of 2.00m/s relative to the water.
a) What is the speed of the boat relative to a stationary shoreobserver?
b) How far downstream from the initial position is theboat when it reaches the opposite shore?
A irregular piece of metal has a dry mass of 5.7 kg. Once it is submerged it has an apparent mass of 2.4 kg. What is the density of the piece of metal
Two converging lenses, each of focal length 17.0 cm, are placed 39.2 cm apart, and an object is placed 30.0 cm in front of the first lens. Where is the final image formed
A doubly charged helium atom whose mass is 6.6 *10^-27 is accelerated by a voltage of 3000 V. What is its period of revolution
A solenoid that is 102 cm long has a cross-sectional area of 16.3 cm2. There are 980 turns of wire carrying a current of 9.08 A. Find the total energy in joules stored in the magnetic field there
Soft drinks are commonly sold in aluminium containers. How a lot of such containers are thrown away or recycled each year by U.S. consumers.
A capacitor is charged to a potential of 12.0 and is then connected to a voltmeter having an internal resistance of 3.10. estimate the time constant of the circuit
The harmonic oscillator can be used as a model for the vibrational motion of a diatomic molecule. Describe the vibrational spectrum that is predicted by the harmonic oscillator model. In what region of the electromagnetic spectrum will the spectru..
At a factory, a noon whistle is sounding with a frequency of 497 Hz. As a car traveling at 84km/h approaches the factory, driver hears the whistle at frequency fi. After driving past the factory, the driver hears frequency ff. What is the change i..
A particle of mass 1.00× 10?3 kg and charge ?1.00 ?C is released from rest near the ground in a constant, horizontal electric field of strength 5.00 kV/m. What is the change of its electric potential
Estimate approximately the angular deflection of the muon's trajectory, given that the rest mass of muon is 100Mev and that the saturation magnetization in iron is equivalent to 1.6 x 10^23 electron moments per cm^3.
A car of mass 1530 kg traveling at 24 m/s is at the foot of a hill that rises 110 m in 3.8 km. Find the average power delivered by the car's engine
A box weighing 215 N is placed on an incline plane that makes an angle of 350 with the horizontal. Compute the component of the weight perpendicular the plane
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