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For the following system, multiply or divide every term of both equations by the number selected through inspection to make coefficients easier to work with. Solve system using the suitable algebra
R=log(I/Io), where Io is the minimum level for comparison. How many times greater was intensity of one earthquake R1=8.5, than another earthquake R2=7.5?
Article also states that tower now leans 16 inches less. Sketch the new diagram which illustrates this measurement. Determine height of tower with this lean?
The aquarium of height 1.5 feet is to have the volume of 12 ft3. Let x denote length of base and y width. State total number S of square feet of glass needed as function of x.
2 complex numbers Z1 = Aexp^2pi(ix), z2 = Aexp^2pi(iy). multiply w = z1 * z2 to determine the value ( I got Aexp^i(x+y)). Compute the modulus.
Determine natural domain and find out range of function. Set the graphing utility in radian mode if graphing trigonometric functions. h(x)= 1/ 4-4 sinx.
From the boat on river below the dam, angle of elevation to top of dam is 25 degrees. If dam is 2,039 feet above the level of river, how far is boat from base of the dam?
In the electrophonic aromatic substitution reaction draw all three resonance structures for the carbonation intermediate that results from STEP2 , given that benzoic acid is a meta- di
Calculate the concentration of ethanol in % v/v if a 250mL solution of ethanol in water is organized with 4mL of absolute ethanol.
You have a micro fudge tube which is having 1mL of a solution with 4.3x104 cells/mL and you are to construct a solution that have 43 cells/mL. Determine what dilutions must you perform?
The disc is 12 cm in diameter and rotates at 100 revolutions per minute when being played. Determine linear speed in cm/min of a point on outer edge of disc.
At 26.0 Celsius a student collected hydrogen gas in a burette by displacing water. To equalize the pressure the burette could not be submerged deep adequate in a water bath.
what is trig function which models persons height, h(t), above ground as the function of time since they enter ferris wheel? How long is person above 300 feet?
Determine the pressure of the hydrogen in the burette? If the atmospheric pressure have 753 torr when the density of the Hg is13.6g/ml.
Plasma is a state of matter having of positive gaseous electrons and ions. A mercury atom could be stripped of its 80 electrons in the plasma state and therefore would exist as Hg80+. Determine the
Determine the number of moles of salt do you want? Explain what type of volume of the concentrated solution is required?
In the natural gas the Hydrogen sulfide is an impurity that must be removed. One common removal method is called the Claus process, by which relies on this reaction:
At -10°C explain how much heat is required to convert 870. g of ice to steam at the 137°C? The specific heats of steam, ice and the liquid are 1.99 J/g·°C, 2.03 J/g·°C
Determine the number of milliliters of coffee can be acquired from 9 g of coffee beans where A pound of coffee beans yields the 50 cups of coffee i.e. 4 cups = 1qt.
The cylindrical casing of the flashlight houses the parabolic reflecting mirror and light source. If casing has the depth of 2.5 inches and the diameter of 6 inches, how far from vertex must light s
Determine the dose in milligrams for a 110 lb person when the recommended adult dose of Elixophyllin a drug used to treat the asthma which is having the 6 mg/kg of body mass.
The ship is sailing east. At one point, bearing of the submerged rock is 47degrees. After ship has sailed 16.8mi, bearing of rock has become 306degrees. Determine distance of ship from rock at later
Calculate the rate of appearance of I2 at the same moment, at some moment in time suppose that the instantaneous rate of disappearance of the MnO4-ion in the following reaction is 0.00422 M/s?
Determine the number of carbon atoms are in 3.00 gram of butane when the fuel used in many disposable lighters in liquid butane,C4H10.
As a result of the reaction, 0.03 mole/liter of H+ was produced. An enzyme-catalyzed reaction was carried out in a 0.1 M TRIS (pK =8.1) buffer at pH 7.8. TRIS+ and TRIS0 represent the acidic and bas