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A tuning fork vibrates at a frequency of 256 Hz. What is the wavelength of the sound coming from the fork when the air temperature is a) 0oC and b) 20oC
a) 1.29 meters
b) 1.34 meters
If 3.43×108 electrons flowthrough the ground wire to Earth and the ground wire is thenremoved, what is the net charge on the electroscope?
f1 1.6-4.6 and f2 0.3-0.8 where all components are in newtons. what angle does the vector f1 f2 make with the
A modern sculpture has a large horizontal spring, with a spring constant of 276 N/m, that is attached to a 51.0-kg piece of uniform metal at its end, By how much has the spring stretched
a 18.0-kg cannonball is fired from a cannon with muzzle speed of 850msat an angle of33.0degwith the horizontal. a
A certain atom has atomic number Z = 21 and atomic mass number A = 44. How many protons and neutrons are in the nucleus
a small circular hole 9.00mm in diameter is cut in the side of a large water tank 24.0m below the water level in the
A rope is used to pull a 2.72 kg block at constant speed 6.90 m along a horizontal floor. What are the work done by the ropes force
What are ranges of wavelength and frequency
An atomic nucleus of mass 288 u moving at 405m/s emits an alpha particle of mass 4.0 u in the direction of its velocity. If the remaining nucleus slows to 360m/s, what velocity does the alpha particle have when it is emitted.
when viewed in a spherical mirror the image of a setting sun is a virtual image. the image lies 17 cm behind the
Describe in words the thermodynamics processes in terms of reversible and nonreversible for a Carnot Heat Engine, Fireplace
A constant force of 46.3 N, directed at 28.7o from horizontal, pulls a mass of 14.7 kg horizontally a distance of 3.09 m
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