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You are sitting in a stationary boat and your friend is sitting in another boat nearby. Ocean swells (long waves) are passing by. You notice that whenever you are at the crest of a wave (i.e. the crest is passing under you) your friend is at the crest of the next wave. The boats are 8 m apart. You time the waves and find that the time between the arrival of each crest is 4 s. What is the wavelength of the ocean swell?
What is the period of the swell?
What is the frequency of the swell?
How far does a crest travel in 4 s? What do you conclude is the speed of the waves?
A torque of 2.2 N.m is applied to a spherical shell of radius 0.25 m. what is the mass of the disk
What are the total displacement and angle of displacement
A crate with a mass of 171.5 kg is suspended from the end of a uniform boom with a mass of 80.3 kg. The upper end of the boom is supported by a cable attached to the wall and the lower end by a pivot (marked X) on the same wall. compute the tensio..
An X-ray photon with a wavelength of 0.250nm nm scatters from a free electron at rest. Find the initial momentum of the photon
Find out the minimum values of m1 and m2 such that the overlapping of the bright fringes will occur and find position of the overlap on screen.
A uniform plank of length 2m and mass 29kg is supported by three ropes, as indicated by the blue vectors. Find the tension in each rope when a 690N person is 0.500m from the left end.
A geologist searching for oil finds that the gravity at a certain location is 8 parts in 107 smaller than average. Estimate the size of the deposit
A cart of mass M = 1.6 kg can roll without friction on the level track. A light string draped over a light, frictionless pulley connects the cart to a hanger with mass m = 0.7 kg.
A muscle builder holds the ends of a massless rope. At the center of the rope, a 7.9 kg ball is hung as shown. What is the tension in the rope
A 1.0--tall vertical tube is filled with 20o water. A tuning fork vibrating at 574 is held just over the top of the tube as the water is slowly drained from the bottom.
A person who weighs 620 N stands at x = 5m, right on the end of a long horizontal diving board that weighs 350 N. The diving board is held up by two supports, one at its left end at x = 0, and one at the point x = 2.00 m.
A train at rest emits a sound at a frequency of 1045 Hz. An observer in a car travels away from the sound source at a speed of 37 m/s.What is the frequency heard by the observer . What must be the result have been for the horizontal speed.
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