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A car (mass = 1100 kg)is traveling at 32 m/s when it collides head on with asport utility vehicle (mass =2500 kg) traveling in the opposite direction. In the collision, the two vehicles come to a halt. At what speed was the sport utility vehicle traveling?
A 0.80-m-long organ pipe that is open at both ends resonates in the fundamental when a tuning fork of unknown frequency vibrates near one end of the pipe. what would be the fundamental frequency of a 0.80-m-long pipe that is open at one end and cl..
Consider a wide-gap degenerate n-type semiconductor with a bandgap of Eg=3.5 eV. Given a constant effective mass Mn*=0.2 m in the entire conduction band (i.e. a parabolic E-k relationship),
A man strikes a nail with a 1kg hammer. The speed of the hammer just before it strikes the nail is 5m/s, What is the force exerted on the nail by the hammer
The middle-A organ pipe was designed to sound at exactly 440 Hz when the temperature is 20 C. How long is the organ pipe if it is open on both ends
A 0.60 kg piece of aluminium at a temperature of 180 C is dumped into 900 mL of water at a temperature of 30 C. What's the final equilibrium temperature
For the motion from the initial free until the piece of wood comes to rest, what is the total amount of work completed by friction.
Four identical masses of mass 710 kg each are placed at the corners of a square whose side lengths are 15.0 cm. What is the magnitude of net gravitational force on one of the masses, due to the other three.
Light of wavelength 650 nm falls on a 0.48 mm wide slit and forms a diffraction pattern on a screen 1.8 m away.
A centrifuge is a device in which a small container of material is rotated at a high speed on a circular path. How many revolutions per minute is the sample making
Professor Spenditt, oblivious to economics and politics, proposes the construction of a circular proton accelerator around the Earth's circumference using bending magnets that provide a magnetic field of 1.5T. What would be the kinetic energy of prot..
a rocket blasts off from rest and attains a speed of 49 m/s in 14 s. What is the astronaut's apparent weight during take off
Both drawings show the same square, each of which has a side oflength L = 0.88 m. An observer O is stationed at onecorner of each square. Two loudspeakers are located at corners ofthe square, as in either drawing 1 or drawing 2.
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