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A simple harmonic oscillator takes 12 s to undergo 5 complete vibrations. Find (a) the period of its motion, (b) the frequency in hertz and (c) the angular frequency in radians per second.
Biologists think that some spiders "tune" strands of their web to give enhanced response at frequencies corresponding to those at which desirable prey might struggle.
A hill that has a 15.8 % grade is one that rises 15.8 m vertically for every 100.0 m of distance in the horizontal direction. At what angle is such a hill inclined above the horizontal
Electrons accelerated by a potential difference of 12.43 V pass through a gas of hydrogen atoms at room temperature. Calculate the wavelength of light emitted with the shortest possible wavelength
Air in a closed piston-cylinder device arranged to maintain a pressure of 400 kPa is heated from 27 ° C to 227 ° C. What is the final air volume
An electron confined in a harmonic potential well emits a 1280nm photon as it undergoes a 5 ? 4 quantum jump. What is the spring constant of the potential well
Calculate the rates of solar heating
A physics student on Planet Exidor throws a ball, and it follows the parabolic trajectory, What was the ball's launch angle
An osprey’s call is a distinct whistle at 2200 {rm Hz}. An osprey calls while diving at you, to drive you away from her nest. You hear the call at 2300 {rm Hz}. Explain how fast is the osprey approaching?
Calculate the pressure of the blood in the brain and in the feet of a pearson when standing. The average pressure of the blood in the heart is 1.3×104N/m2 above atmospheric pressure
What is the magnitude of the magnetic field. Evaluate this to the tension as the boat is raised and held at rest so the angle becomes 25 degrees.
How many watts must a fluorescent bulb (25% efficiency) use to produce the same amount of light as a 100-watt incandescent bulb, What would the power consumption be for an LED
A lovesick lad wants to throw a bag of candy and love notes into the open window of his girlfriend's bedroom 10.0 m above. At what velocity should she throw the bag
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