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A steady wind of 25 knots over a very long fetch can create waves of 3-meter height, a period of approximately 10 seconds, and a speed of 16m/s. A steady wind of 40 knots can create waves of 6-meter height, a period of 15 s, and a speed of 24 m/s. Compare the power carried in each of the two waves:
a) 4:3
b) 2:1
c) 7:4
d) 8:3
At each of the designated points, rotate the given vector to indicate the direction of the force exerted by the water on either the inside of fishbowl (for points A and B) or the outside of the goldfish (for points C, D, and E).
Two forces, of magnitude F1 = 80.0 N and F2 = 45.0 N, act in opposite directions on a block which sits atop a frictionless surface. Find the work W1 done on the block by the force of magnitude F1= 80.0 N as the block moves from xi = -1.00 cm to xf =..
Suppose you design an apparatus in which a uniformly charged disk of radius R is to produce an electric field. The field magnitude is most important along the central perpendicular axis of the disk, at a point P at distance 2.90R from the disk (Fi..
The harmonic oscillator can be used as a model for the vibrational motion of a diatomic molecule. Describe the vibrational spectrum that is predicted by the harmonic oscillator model. In what region of the electromagnetic spectrum will the spectru..
n = 3.24 mol of Hydrogen gas is initially at T = 357 K temperature and pi = 2.79×105 Pa pressure. How much heat did the gas emit
An electron is in the fifth Bohr orbit of hydrogen. Find the speed of the electron. Find the current corresponding to the motion of the electron
a woman stands on a scale in a moving elevator. her mass is 70.5 kg and the combined mass of the elevator and scale is
In a photoelectric effect experiment, no current flows unless thewavelength is less than 570nm. What is the work function of themetal?
a 5kg block is pushed up a frictionless plane inclined at 30 degrees to the horizontal. What fraction of the work done by the force is the dissipated by the friction
A river 24.0 m wide and 5.0 m deep drains a 3000.0 km2 land area in which the average precipitation is 48 cm/year. What is the average speed of the river
Two hockey players strike a puck of mass 0.169 kg with their sticks simultaneously, exerting forces of 1.25 103 N, Find the instantaneous acceleration of the puck
A physics book slides off a horizontal table top with a speedof 1.15 m/s. It strikes the floor in0.500 s. Find the height of the table top above the floor
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