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The distance of 2250 mi, in 5 h. flying aganst jet stream, plane could fly only 1750 mi in same amount of time. Determine rate of plane in calm air and rate of wind.
An object of 2.0 cm high is positioned 15.0 cm in front of a concave mirror which consists of a radius of curvature of 10.0 cm. By using a ray diagram, evaluate:
Determine the juvenile hormones and explain how they are used against the insect pests? Determine the numbers of electrons does an atom generally need in its outer level to be most stable?
In an EM wave traveling west, the B field oscillates vertically and consists of a frequency of 82.5 kHz and rms strength of 7.75 x 10-9 T. Determine the frequency and rms strength of the electric fie
A sample which is having 25.00 mL of H2C2O4 solution needed 43.88 mL of 0.1891 M NaOH to titrate it to the equivalence point. Determine the molarity of the H2C2O4 solution?
Assume you travel north for 35 kilometers then travel east 65 kilometers. How far you are from your initial point? North and east can be considered directions of y- and x-axis respectively.
(i) Compute the net energy received by the antenna throughout 5.0 hours of viewing this station's programs. (ii) Determine the amplitudes of the E and B fields of the EM wave?
Water in equilibrium with the air contains 4.4 x 10-5% CO2. Water in contact with air is acidic, rather than neutral, due to dissolve the carbon dioxide.
If a current ‘I’ flow via a resistance R, the heat energy dissipated per second is the average value of RI2. Assume that a periodic (not sinusoidal) current, I(t) be expanded into a Four
Determine the Kb value for each of these species. Which species is the strongest base? Consider the speciesPO43-, HPO42-, H2PO4-. Each ion can act as a base in water.
Supposing the origin is positioned where the bullet starts to move, the force applied on the bullet by the expanding gas is F = a + b x - c x2, where a = 18800 N, b = 5090 N/m, c = 14300 N/m2, with
Determine which type of metabolism ( aerobic or anaerobic) is primarily responsible for providing energy for prolonged low levels of activity?
The boat travels 10 miles upstream in same time it takes to travel 18 miles downstream. Determine speed of boat in still water?
Estimate the total energy change for this process. Pay careful attention to units. Gas in a piston-cylinder apparatus is heated with 1.500 kcal while simultaneously decreasing its volume from 1.500
A person decides to utilize an old pair of eyeglasses to make some optical instruments. He recognizes that the near point in his left eye is 54.0 cm and the near point in his right eye is 94 cm. (i
The reaction is accompanied by a decrease in volume, so that there is a work flow from the surroundings of 10. kJ. A chemical reaction involving gases takes place in a vessel fitted with a movable p
Let, consider a 1.8 m tall man standing vertically in water and totally submerged in a pool. Find out the difference between the pressures acting at the head and toes of the man in kPa.
Determine the pH of a solution of 0.2 M MES and 1.0 M glacial acetic acid using a 9:1ratio? MES pKa=6.15 and HAC pKa=4.76.
Determine the magnitude of the induced emf among the tips of the wings?
Explain the advantages and disadvantages of participating in such a drug study?Explain why it is important that studies use placebos as well as test drugs?
When a 2.0 L nickel reaction container (glass can’t be employed as it reacts with HF) filled with 0.0063 M H2 is joined to a 3.5 L vessel filled with 0.033 M F2. The equilibrium constant, Kp, i
Company's stock has the beta of 1.70, risk-free rate is 8.25%, and market risk premium is 10.50%. Find the estimate of stock's current price?
Explain how do NSAIDs suppress inflammation?Explain why is acetaminophen chosen over aspirin for the relief of pain associated with the surgical procedures?
Determine the potential energy of the system of the three charges when q3 is positioned at x = + 10.0 cm?
Discuss how can a drug such as penicillin kill bacterial cells without killing human cells? Determine the three classes of antiviral drugs? How does each work?