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You measured the speed of sound to be 384.9 m/s. Your lab partner measured it to be 342.2 m/s. What was the percent difference between these values?
A particle of mass 2.4x10^-5kg and charge 3.0x10^-6C is accelerated from rest in a uniform electric field of 180 N/C. Find its acceleration in the electric field
What is the stopping distance of the car, as measured from the point where the driver first notices the red light?
In case A, a metal bullet penetrates a wooden block, In case B, a rubber bullet with the same initial speed and mass, bounces off of an identical wooden block. Will the speed of the bullet in case B after the collision be or = of speed just before ..
The internal energy of a gas is 1000 J. The gas is compressed adiabatically, and its volume decreases by 500 cm3. what is the internal energy of the gas
Communications satellites are placed in a circular orbit where they stay directly over a fixed point on the equator as the earth rotates. find the period of a satellite in a geosynchronous orbit
Suppose a star with radius 8.61 108 m has a peak wavelength of 686 nm in the spectrum of its emitted radiation. What is the surface temperature of the star
In a He+ ion, the electron is in 3S state Assume that units can be chosen that a = 4 ? ?0 h2 / (M e2) = 1, write down the corresponding wavefunction
Imagine that a certain bugle plays in C, so that the pitches in "Taps" are low G (196 Hz), middle C (261 Hz), E (329 Hz), and G (392 Hz). How long would this bugle be if uncoiled
A 30-meter steel tape is correct at a temperature of 20.0(C). The distance between two points, What is the true distance between the points
A rescue helicopter lifts a 84.2-kg person straight up by means of a cable. The person has an upward acceleration of 0.759 m/s2, What is the tension in the cable
A large storage tank, open at the top and filled with water, develops a small hole in its side at a point 16.4 m below the water level. Determine the diameter of the hole
What are the first, second, and third frequencies audible from a 20cm long organ pipe when (1) only one end is open and when (2) both ends are open. The speed of sound through the air inside the organ pipe is 343 m/s. (Hint: if a harmonic does not..
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