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A student has a stretched string on density u and length L under a tesnion F. A standing wave of frequency f = 4/4 squareroot, Calculate the length of the string
A photon with an initial wavelength of 1.150×10-11 m Compton scatters from an electron which is initially at rest. What is the energy of the incoming photon
The temperatre result in each measurement are listed below, write down the formula for mean and calculate the temperature mean value
A jet airplane is in level flight. The mass of the airplane is m = 8830 kg. find the magnitude of the lift force acting on the plane
A fixed 17.3-cm-diameter wire coil is perpendicular to a magnetic field 0.49T pointing up. In 0.15s , the field is changed to 0.33T pointing down. obtain the average induced emf in the coil
A meniscus lens is concave on one side and convex on the other. Find the refractive power of a meniscus lens with n = 1.56 and curvature radius 29cm on the convex side and 48cm on the concave side
A 52% efficient device uses chemical energy to generate 570J J of electric energy. How much chemical energy is used
A 1.1 kg birdfeeder hangs from a horizontal tree branch. The birdfeeder is attached to the branch at a point that is 1.0 m from the trunk. where the branch attaches to the trunk
Atmospheric scientists studying clouds in the Marshall Islands have observed what they believe to be the world's largest raindrops, with a radius of 0.52 cm. How many molecules are in these monster
Name the alkyl branch present on the ring of ibuprofen that is across from the acid functional group
The surface waters of tropical oceans are at a temperature of 28?C while water at a depth of 1200 m is at 3?C. What is the maximum efficiency possible of such a heat engine
A process involves the performance of electrical work in the amount w' on a system. Show that if the process is carried out
Napthalene has a log Kow of 3.33. Estimate its soil-water partition coefficient normalized to organic carbon.
An unstable particle with a mass equal to 3.34x10^-27 kg is initially at rest. Find the masses of the fragments
The speed of a photon is 4.5x10^5 ms^-1. If the uncertainty in its momentum is to be reduced to .01 percent, what uncertainty in its location must be tolerated
What is the frequency of blue light that has a wavelength of 450 nm and What is the frequency of red light that has a wavelength of 650 nm
Poorly treated municipal wastewater is dis- charged to a stream. The river flow rate upstream of the discharge point is Qu = 8.7 m3/s. The discharge occursataflowofQd=0.9m3/sandhasaBODcon- centratio
The displacement of a wave traveling in the positive x-direction is y(x, t) = (3.5 cm)cos(1.7x - 129t), where x is in m and t is in s. What is the frequency of this wave
Consider a house into which radon is emitted through cracks in the basement. The total volume of the house is 650 m^3 (assume the volume is well mixed throughout). The radon source emits 250 pCi/s
As the temperature of ice is increased, it changes first into a liquid and then into a vapor. How might one produce liquid carbon dioxide
Compounds in a and b were named incorrectly. On a sheet of paper draw the molecule that fits the given description. From the structure you drew determine the correct IUPAC name. Write the correct IU
A system that had work done on it but which receives or loses no heat from or to the surroundings has positive work or negative work; positive or negative delta E
Calculate the equilibrium constant at 298 K for the reaction of ammonia with oxygen to form nitrogen and water. The data refer to 298 K.
A typical photovoltaic cell delivers 4.0×10?3W of electric energy when illuminated with 0.11W of light energy. What is the efficiency of the cell
The solubility of oxygen gas at 50*C is 27.8 mg/L at an oxygen pressure of 1.00 atm. The solubility of nitrogen gas at 50*C is 14.6 mg/L at a nitrogen pressure of 1.00 atm. Assume that the air above