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The light from a single car is photographed from a high vantage point with a time exposure. What is the line that is observed in the photograph? A long time passes as a large number of car lights are photographed instantaneously on the same road from the same high vantage point. What is the relation between the two photographs? Explain similarities and differences.
A tube is partially and vertically inserted into a container of water. Two sequential resonant frequencies are heard when a 215-Hz tuning is struck and held atop the end of the tube that is out of the water. What is the temperature of the surroundi..
question1a helicopter is ascending vertically with a speed of 5.03. at a height of 132 above the earth a package is
A steel piano wire vibrates in its first harmonic mode with a fundamental frequency of f1 = 410 [Hz]. How many harmonics can be heard by a person
A solar cell generates a potential difference of 0.320 V when a 445.0 ? resistor is connected across it and a potential difference of 0.504 V when a 945.0 ? resistor is substituted. What is the emf of the cell
A 1.2 kilogram object moving with a speed of 8m/s collides perpendicularly with wall and emerges with a speed of 6m/s in the reverse direction. find the magnitude of the average force on object by wall
A 109-kg horizontal platform is a uniform disk of radius 1.69 m and can rotate about the vertical axis through its center. A 61.5-kg person stands on the platform at a distance of 1.15 m from the center and a 27.5-kg dog sits on the platform near ..
A pendulum, consisting of a ball of mass m on a light string of length 1.00 m, is swung back to a 45° angle and released from rest. What is the block's speed after the collision
You are in a radar station on the coast. You are monitoring the motion of two ships. The Pequod is 4.00 km away, What is the speed of the Jeroboam seen by Captain Ahab
A bullet is fired horizontally from a 100 m, t all building with a speed of 900 m? How long will it take to hit the ground?
A stone is launched horizontally from the roof edge 122.5 meters above ground. What was the initial velocity
the bridge is 3910m long and is constructed of steel. how much longer is the bridge on a warm summer day (30.0 C) than on a cold winter day (-5.0 c)
Light of wavelength 550nm in air is found to travel at 1.96*10^8 m/s in a certain liquid. Determine the wavelength of the light in the liquid
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