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A sound source is moving away from the stationary listener at 80 m/s.
(a) Find the wavelength of the sound waves in the region between the source and the listener.
(b) Find the frequency heard by the listener.
An electron is accelerated by a 4.5 kV potential difference. How strong a magnetic field must be experienced by the electron if its path is a circle of radius 5 cm.
Oil with index of refracton n=1.25 floats on water with index n=1.33. For normal incidence, what maximum film thickness will reflect red light of wavelength 650nm most strongly
Compute the x-coordinate of the center of mass XCM. Suppose that the mass of the rod is small enough to be ignored in your calculation. Your answers must be accurate to within 0.1 cm.
A 8 kg stone is dropped from a height of 170 m. Find its kinetic and potential energies when it is halfway to the ground
A soldier is tasked with measuring the muzzle velocity of a new rifle. Knowing the principles of projectile motion, What muzzle velocity should the soldier report to his sergeant
How high up a frictionless incline could mass climb? How far could the mass skid on a level table with a static mu of 0.70 and a kinetic mu of 0.50.
Describe what the Zeroth Law of Thermodynamics is in your own words. Also, draw a scenario that verifies the Law is accurate. State the other Laws of Thermodynamics
A wind turbine with a rotor diameter of 50 m is rated at Y kW at a hub height wind speed of m/s. It has a cut-in wind speed of m/s and a cut-out speed of m/s.
A typical flashlight battery will produce a 0.50-A current for about 3 h before losing its charge. Determine the total number of electrons
Tarzan, who weighs 900N, swings from a cliff at the end of a 40.0 m vine that hangs from a high tree limb, What is the magnitude of the tension on the vine
What is the relationship between current and magnetic force, What is the relationship between the length of the wire and the magnetic force
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