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Ocean waves are traveling to the east at 5.0 m/s with a distance of 16 meter between crests.
(a) Find with what frequency do the waves hit front of a boat when the boat is at anchor?
________Hz
(b) Find with what frequency do the waves hit front of a boat when the boat is moving westward at 1.1 m/s?
Coulomb’s law for electrostatic force between two point charges and Newton’s law for gravitational force between two stationary point masses, both have inverse-square dependence on the distance between the charges/masses.
A very thin sheet of plastic (n=1.60) covers one slit of adouble-slit apparatus illuminated by 640-nm light, What is the (minimum) thickness of the plastic
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a brass cylindrical bar at 300 k has a diameter of exactly 34 mm. an aluminum ring has an inner diameter which is
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