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a farm worker is exposed to trifluralin, a commonly used pesticides while working in the fields. Calculate the risk of the worker exposed to 0.01mg/m3 who works 8 hours per day, 7 weeks, for 4 months a year, and for 25 years. Assume a body weight of 70kg and an inhalation volume of 20m3 per 8 hours. The slope factor for Trifluralin is 8.4*10-1 (mh/kg.day)-1
Rewrite your pay computation to give the employee 1.5 times the hourly rate for hours worked above 40 hours
Make up an example of a monthly demand schedule for pizza, and graph
the implied demand curve. Give an example of something that would shift
this demand curve, and briefly explain your reasoning. Would a change in the price of pizza
shift this demand curve
The open tank contains two different liquids as shown below. Determine the total pressure at elevation zero.
Two clean parallel glass plates, separated by a distance d = 1.5 mm, are dipped in a bath of water. How far does the water rise due to capillary action, if σ = 0.0730 N/m?
Benzene at 20°C has a viscosity of 0.000651 Pa-s. What shear. stress is required to deform this fluid at a strain rate of 4900 s-1?
Calculate the density, specific weight, and volume of chloride gas at 25 °C and pressure of 600 000 N/m2 absolute.
In a piston-and-cylinder apparatus the initial volume of air is < 90 – 120 > L at a pressure of < 100 – 130 > kPa and temperature of 26 °C. If the pressure is doubled while the volume is decreased to < 50 – 60 > L, compute the final temperature and density of the air.
If < 2.2 – 4.3 > m3 of substance weighs <20 - 40 > kN, calculate the following.
a.) Specific weight
b.) Density
c.) Specific gravity
Based on the known mechanism of the enzyme glyceraldehyde-3-phosphate dehydrogenase predict the outcome of the following situations or reactions. Include a brief justification of your answer for each case. See p 519 of the text for the mechanism – Figure 14.7. Things to consider in answering this question: The acetyl phosphate experiment:NAD+ Glyceraldehyde 3-phosphate ÇH20P03 NAD+ HCOH H Glyceraldehyde 3-phosphate dehydrogenase Cys Cys Formation of enzyme-subsfollow the expected making and breaking of the bonds and what you know about the mechanism.
Predict what would happen if acetyl phosphate (a mixed anhydride of acetic and phosphoric acids) is used as the enzyme substrate in the presence of 32P inorganic phosphate. Hint: A catalyst catalyzes are reaction equally in the forward and in the reverse direction.
