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You may have observed that water waves advancing toward the shore have their wavefornts almost always parallel to the shoreline, independent of the direction of the wind. Nothing the fact that the velocity of waves in water decreases as the depth of the water decreases use Hyugens Principle to explain this phenomenon.
A student decides to move a box of books into her dormitory room by pulling on a rope attached to the box. If the coefficient of friction is unchanged, what is the new acceleration of the box
The following data are obtained from a Boyle's law experiment: P1 = 113 kPa, T = 300. K, V1 = 5.00 10-5 m3. Calculate the volume occupied by the gas
An airplane flies 200 km due west from city A to city B and then 315 km in the direction of 33.0° north of west from city B to city C.
A wooden plank is raised at one end to make an angle of 30° to horizontal. determine the rate of acceleration down the incline
In a bizarre experiment devised by a physics teacher and an industrial arts teacher at a local high school, Find the mass of ethylene glycol m_c in kilograms to three significant digits
A constant net force of 75N acts on an object initially at rest as it moves through a parallel distance of 0.60m. What is the final kinetic energy of the object
A 1.57-? resistor is connected across a 6.90-V battery. The voltage between the terminals of the battery is observed to be only 6.30 V
A bungee cord is stretched between two poles with a force of 434 N. What is the velocity of a wave on this bungee cord
A jogger takes 49 minutes to run 22 times around a track that measures 0.25 mile. What is her average velocity in mph and m/s
The orbit of earth's moon has a period of 27.3 days and a radius (semi-major axis) of 2.56 x 10-3 A.U. (= 3.84 x 105 km). What is the mass of Earth? What are the units? Show the work.
A typical coal-fired power plant has a generating capacity of about 1.3 X 10^9 W of electric power. What is the overall thermal efficiency of the plant
A supersonic jet passes directly overhead at an altitude of 11,585 m, traveling at 680 m/s, or mach 2. How much time elapses before you hear the sonic boom
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