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A student in a parked car honks the horn, which has a `proper' frequency of 300 Hz. An observer in an approaching vehicle measures the frequency
At the bottom of the track the block slides freely along a horizontal table until it hits a spring attached to a heavy, immovable wall.
If you stand on a bathroom scale, the spring inside the scale compresses 0.50 mm, and it tells you your weight is 665 N.
In order to cause the loudness of a sound to appear half its original value it must be: (a)increased by 50 dB (b) decreased by 50 dB (c) decreased by 10 dB
What minimum value of the coefficient of static friction, µs, will assure that the spring remain compressed at the maximum compressed position?
A speaker fixed to a moving platform moves to a wall, emitting a steady sound with a frequency of 250Hz. A person on the platform, right next to the speaker
Suppose the roller coaster in Fig. (h1 = 32 m, h2 = 13 m, h3 = 20) passes point A with a speed of 3.00 m/s.
Sound waves travel through an aluminum bar at a speed of 1400 m/s.
Assuming negligible friction, what spring constant would be needed by the spring in a "b-b gun" to fire a 10g pellet to a height of 100m.
A bystander hears a siren vary in frequency from 476 Hz to 404 Hz as a fire truck approaches, passes by, and moves away on a straight street
In your own words, explain the meaning of the following terms:
Two baseballs, each with a mass of 0.122 kg, are separated by a distance of 950 m in outer space.
2.5 moles of a mono-atomic ideal gas undergo a reversible adiabatic expansion from an initial pressure of 320 kPa and initial volume .
Two submarines are underwater and approaching each other head-on. Sub A has a speed of 13 m/s and sub B has a speed of 7 m/s.
A stationary observer hears a frequency of 500Hz while the source is moving directly toward him.
What is the height of the highest tree limb they can reach on their upward swing?
What fraction of the neutron's kinetic energy is transferred to tha carbon atom? (express your answer in percent)
Use work and energy to find the speed of the 2.0 kg block just before it hits the floor if the coefficient of kinetic friction of the 3.0 kg block is 0.15.
This experiment was designed to understand and measure Doppler shift.
The Starship Enterprise approaches a planet at a speed of 0.8 c. The planet is considered at rest. A Klingon fighter ship approaches from the opposite direction
A French submarine and a U.S. submarine move toward each other during maneuvers in motionless water
One end of stationary rope is tied to a support at the end of a vertical mine shaft 800m deep, the other end is fixed at the bottom by means of a 20kg weight.
A sound source and a person are separated by 1000m. The sound source produces a frequency of 400Hz. Given speed of sound in air @ 343 m/s find:
Particles approximately 3.0 X 10-2 cm in diameter are to be scrubbed loose from machine parts in an aqueous ultrasonic cleaning bath.
A metal can containing condensed mushroom soup has mass 220 g, height 11.2 cm and diameter 6.38 cm.