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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.
The cost of electricity varies widely throughout the United States; $0.120/kWh is a typical value. At this unit price, compute the cost of the following. Leaving a 40.0-W porch light on for two weeks while you are on vacation.
The blackbody radiation emitted from a furnace peaks at a wavelength of 5.7 x 10-6 m (0.0000057 m). What is the temperature inside the furnace
The flash unit in a camera uses a 9 V battery to charge a capacitor.The capacitor is then discharged through a flash lamp. obtain the capacitance of the capacitor
Before embarking on a car trip from Michigan to Florida to escape the winter cold, What is the new pressure in your tires, in SI units
A pipe 0.026 m in diameter and 0.22 m long can transfer 3476 J of heat per second with a temperature difference across the ends of 7?C. Compare this performance with the heat transfer of a solid silver bar of the same di- mensions by finding the rati..
As you walk to class with a constant speed of 1.95 m/s, you are moving in a direction that is 20.5 degrees north of east. How much time does it take to change your displacement
A 581-{\rm N} physics student stands on a bathroom scale in an 821-{\rm kg} (including the student) elevator that is supported by a cable. Find the magnitude of the acceleration of the elevator
You have a ballistic pendulum. At the end of the event, the angle of the pendulum is ? with the length of the pendulum being L. Find the muzzle velocity of the projectile
A particle of mass m moves on a smooth horizontal table. It is attached to a light, inextensible string that passes through a small hole in the table and carries a mass m, which hangs vertically. Find the Lagrangian of the system as a whole.
You are working for a shipping company. Your job is to stand at the bottom of a 5.5m -long ramp that is inclined at 39 degrees above the horizontal. What speed do you need to give a package
A block of mass 12.0 kg slides from rest down a frictionless 35.0° incline and is stopped by a strong spring with k = 2.80 104 N/m. how far has the spring been compressed
A transverse wave on a string is described by the wave functionA transverse wave on a string is described by the wave function y=(0.120m)sin((pi*x)/8 +4*pi*t).a), Determine the transverse speed and acceleration
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