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A tuning fork produces a steady400 Hz tone. When this tuning fork is struck and held near avibrating guitar string, 20 beats are counted in fiveseconds. What are the possible frequencies produced by the guitar string?
two shuffleboard disks of equal mass one orange and the other yellow are involved in an elastic glancing collision. the
The calorimeter neither loses energy to nor gains energy from the external environment. What is the latent heat of fusion of the unknown material?
a an electrostatic field line is a continuous curve. that is a field line cannot have sudden breaks. why not?b explain
The sound intensity of a whisper is 1.0x10^-10 W/m^2 at one meter distance from the source. At what distance does the intensity level drop by an additional 1dB
The speaker and two microphones shown in the figure are arranged inside a sealed container filled with neon gas. What is the speed of sound in neon gas
a microscope has an objective lens with a focal length of 12 mm. a small object is placed 0.8 mm beyond the focal point
An LED is constructed from a pn-junction based on a certain GA-As-P semiconducting material whose energy gap is 1.9 eV. What is the wavelength of the emitted light
A block of mass 0.6 kg is moving up a 40 degree inclined plane at a speed of 2 m/s. how far up the plane will the block go before stopping
a contact lens is made of plastic with an index of refraction of 1.58. the lens has an outer radius of curvature of
A piston in a gasoline engine is in simple harmonic motion. If the extremes of its position relative to its center point are ± 4.50 cm, find the maximum velocity and acceleration of the piston
A person who weighs 635 N is riding a 98 N mountain bike. Suppose the entire weight of the rider and bike is supported equally by the two tires. If the gauge pressure in each tire is 7.25 105 Pa, what is the area of contact between each tire and the ..
A husband buys a helium-filled anniversary balloon for his wife. The balloon has a volume of 4.1L in the warm store at 72deg F. By how much has the volume decreased
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