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A sound wave propagates in air at 28°C with frequency 3.20 kHz. It passes through a region where the temperature gradually changes, and then it moves through air at 0°C. (a) What is the speed of the wave at 0°C? (b) What is the wavelength of the wave at 0°C?
q. a a diamond is underwater. a light ray enters one face of the diamond and after that travels at an angle of 30
A male turkey is moving towards his mate at a speed of 20.0 m/s while gobblng at a frequency of 1800 Hz. what frequency of sound does the stationary hen turkey hear
In a diffraction grating experiment, light of 600 nm wavelength produces a first-ordered maximum 0.35 mm from the central maximum on a distant screen. What is the wavelength of the light from the second source
drop a rock into a well. You hear the splash 2.40 s after you release the rock from rest. How far below the top of the well is the surface of the water
A skier approaches the base of an icy, frictionless hill with a speed of 13.4m/s . The hill slopes upward at 24.0^\circ above the horizontal. Find the acceleration of this skier
Two concentric metal spheres are found to have a potential difference of 846.0 V when a charge of 3.186·10-8 C is applied to them. What is the radius of the inner sphere
The temperature near the surface of the earth is 310 K. A xenon atom (atomic mass = 131.29 u) has a kinetic energy equal to the average translational kinetic energy, how high up would it go before coming to rest
A solid sphere of mass 6.0 kg is mounted on a vertical axis and can rotate freely without friction, What is the speed of the block after it has fallen 80 cm
Mary applies a force of 79N to push a box with an acceleration of 0.56 m/s. When she increases the pushing force to 90 N, What is the mass of the box
How much force is needed to hold a 7.0 cm diameter hose delivering 440 L/min through a 0.73cm diameter nozzle.
A solid sphere rolls without slipping when it is released from rest at the top of a ramp that is inclined at 34.0 degrees with respect to the horizontal, Calculate the magnitude of the sphere's acceleration, when the angle of the incline is 34.0 de..
Assume that all surfaces in the figure are frictionless. What value should have so the masses won't accelerate? Express your answer to two significant figures and include the appropriate units.
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