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At 45° latitude, the gravitational acceleration as a function of elevation z above sea level is given by g = a - bz, where a = 9.807 m/s^2 and b = 3.32 X 10 ^-6 s^-2. Decide the weight of an 80k person at sea level (z=0), in Denver (z=1610m), and on the top of Mount Everest (z=8848m).
Sound is detected when a sound wave causes the eardrum to vibrate. Typically, the diameter of the eardrum is about 8.4 mm in humans, What is the power delivered to your eardrum
The depth of the water behind the Hoover Dam in Nevada is 220 meter. Find the water pressure at the base of the dam
an 8 inch well penetrates a 100 ft deltaic reservoir with permeability varying linearlynbspwith depth from 200 md to
A projectile (mass = 0.235 kilogram) is fired at and embeds itself in a target (mass = 1.26 kilogram). Obtain what percentage of the projectile's incident kinetic energy does the target (with the projectile in it) carry
An electron is in a certain energy state in a one-dimensional, infinite potential well from x = 0 to x = L = 200pm. What is the frequency of the photon that is emitted
Suppose that a binary-star system consists of two stars of equal mass. What is the mass of each
a 3-kg ball moving at 11 ms collides elastically and head-on with a second 20-kg ball moving in the opposite direction
How much work does Bob do on the rock and How much force, assumed to be constant, does Bob apply to the rock
A transformer consists of 300 primary windings and 832 secondary windings. 1. If the potential difference across the primary coil is 22.5 V , what is the voltage across the secondary coil? 2. If the potential difference across the primary coil is 22...
A bungee cord is stretched between two poles with a force of 415 N. What is the velocity of a wave on this bungee cord
A “75 Watt” light bulb uses an average power of 75W when connected to an rms voltage of 120V. What is the resistance of the light bulb? What is the maximum current in the light bulb? What is the maximum power used by the bulb at any given instant of ..
A vertical spring with a force constant of 300 N/m is compressed 6.0 centimeter and a 0.25 kilogram ball located on top. Evaluate how high does the ball go
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