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A distant galaxy emits light that has a wavelengthof 500.7 nm. On earth, the wavelength of this light ismeasured to be 503.7 nm. Find the speed of the galaxyrelative to the earth in m/s?
A 0.38-kg cord is stretched between two supports,7.6m apart. When one support is struck by a hammer, What is the tension on the cord
A series AC circuit contains a resistor, an inductor of 230 mH, a capacitor of 4.30 µF, and a source with ?Vmax = 240 V operating at 50.0 Hz. obtain the phase angle between the current and the source voltage
A group of developers wants to invest a chain of fast-food restaurants. In determining potential costs for each facility, they must consider among other expenses, the median monthly electric bill. They decide to sample some fast food restaurants c..
You rev your car's engine to 2600 (). a) If you change the period of the engine to 0.038 , how many rpms is it doing
A 44 kg women is in a 62 kg, 5 m long boat that is initially at rest. She walks from a spot 1.00 m from one end to a spot 1.00 m from the other end. how fast was the boat moving while she was walking
A motorist drives north for 36.0 minutes at 67.0 km/h and then stops for 15.0 minutes. He then continues north, traveling 130 km in 2.00 h. What is his total displacement
An open organ pipe has its fundamental frequency at 320 Hz. The first overtone of a closed organ pipe has the same frequency as the first overtone of the open pipe, How long (in meters) is the closed pipe
Light of wavelength 650 nm is incident normally upon a glass plate. What is the highest order bright fringe
Evaluate the magnitude of the acceleration of each mass. What percentage of error in would be made if the moment of inertia of the pulley were ignored? Ignore friction in the pulley bearings.
A step-up transformer increases 15.7V to 110V. What is the current in the secondary as compared to the primary? Assume 100 percent efficiency.
A person pushes a 19.6-kg shopping cart at a constant velocity for a distance of 27.3 m on a flat horizontal surface. What is the magnitude of the force that the shopper exerts
The emissivity of her skin is 0.750 and its surface area is 1.30 m2. How much time would it take for her to emit a net radiant energy from her body that is equal to energy contained in this dessert.
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