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A standing wave forms in a closed pipe, such as in a pipe organ. The pipe is 12 cm long, and the speed of sound is 340 m/s. What is the fundamental frequency in this pipe?
A fully charged capacitor with a voltage of 270 kV is discharged through a resistor. What is the voltage across the capacitor atthe end of four time constants?
Calculate the minimum amount of energy, in joules, required to completely melt 102 g of silver initially at 42.0°C. The melting point of silver is at 962°C.
A 70 kg bicyclist rides his 7.8 kg bicycle with a speed of 16 m/s. How much work must be done by the brakes to bring the bike and rider to a stop.
An object is located at a distance of 113 cm from a concave mirror of focal length 23.3 cm. Another concave mirror of focal length 5.61 cm is located 23.3 cm in front of the first concave mirror. What is the total magnification by the combination
question in a series rl circuit a 1.2-khz oscillating emf has amplitude epsilonmax 24 v and the current amplitude is
The first bright fringe of a diffraction grating of 600 ruling/mm is found at angle of 21 degrees.Find the wavelength of light of the source.
a 2.73 kg wood block is launched up a wooden ramp that is inclined at a 30deg angle. the blocks initial speed is 10.15
q1. two ocean liners each with a mass of 38000 metric tons are moving on parallel courses 92 m apart. what is the
Assume two charges q and -q are placed at the points (0,0, -d/2) and (0,0, d/2) respectively. calculate the electric flux through the xy-plane
The velocity of a diver now before hitting the water is -8.9 m/s, where the minus sign indicates that her motion is directly downward. What is her displacement through the last 0.96 s of the dive?
An arrow is fired with a speed of 20.0 m/s at a block of Styrofoam resting on a smooth surface. Determine how far into the block does the arrow penetrate
A 3.0 kg particle with velocity v = (5.0 m/s) i -(6.0 m/s) j is at x = 3.0 m, y = 8.0 m. It ispulled by a 7.0 N force in the negative x direction. What torque about the origin acts on the particle?
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