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The application of physics in the field of Occupational Safety and Health (OSH).

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For most automobiles, the number of miles per gallon decreases as highway speed increases. Fuel economy drops as speeds increase from 55 to 65 mph, then decreases further as speeds increase to 75 mph. Explain why this is the case.
A pound of body fat stores an amount of chemical energy equivalent to 3,500 Cal. When sleeping, the average adult burns or expends about 0.44 Cal/h for every pound of body weight.How long would the person have to sleep continuously to lose 1 lb of body fat? (Assume the person weighs 145 lb.)
Question 1. The table below shows a collection of data for a thermocouple. Temperature is in degrees Celsius, and the Voltage is in millivolts. (a) Plot the graph using rectangular graph paper with Temperature as the independent variable and determine the basic functional relationship between Temperature and Voltage. Alternatively, you can use Microsoft Excel to plot the data, but attach the graph in your answer page. (b) Determine specific the equation, using the method of selected points that best fits the data. Show how you determined the equation. If you need help, review Lecture-5 (c) What is the thermocouple voltage when the temperature is 1225 degree Celsius? Temperature (degree Celsius) Voltage (millivolts) 50 100 150 200 300 400 500 600 700 800 900 1000 2.5 6.7 8.8 11.2 17 22.5 26 32.5 37.7 41 48 55.2
Show that (ƏT· V др Cp (%) -1 H
your team is developing insulation for the interior of a spaceship for a trip to Mars. Should you focus on materials with high or low values of Cp? Why?
Manufacturers of headache remedies routinely claim that their own brands are more potent pain relievers than the competing brands. Their way of making the comparison is to compare the number of molecules in the standard dosage. Tylenol uses 325 mg of acetaminophen (C8H9NO2) as the standard dose, while Advil uses 2.00 x 102 mg of ibuprofen (C13H1802). Find the number of molecules of pain reliever in the standard doses of (a) Tylenol and (b) Advil. (a) Number Units (b) Number Units
The escape velocity of any object from Earth is 11.2 km/s. (a) Express this speed in m/s and km/h. Speed, m/s: 11200 Speed, km/h: 40320 (b) At what temperature would oxygen molecules (molecular mass is equal to 32 g/mol) have an average velocity, v, 'ms' equal to Earth's escape velocity 11.2 km/s? Temperature: 1,89 ×108 K No, that's only partially correct
A pound of body fat stores an amount of chemical energy equivalent to 3,500 Cal. When sleeping, the average adult burns or expends about 0.42 Cal/h for every pound of body weight.How long would the person have to sleep continuously to lose 1 lb of body fat? (Assume the person weighs 150 lb.) Answer in hours.
To heat a room with dimensions width a=3 m, length b=5 m, height h=2,2 m, approximately an electrical power of P=10 W per square meter is needed. At a cost of 0.2 soles per kW.h, how much will it cost per day to use this heater?
The diffusion coefficient of a particular kind of tRNA molecule is D = 1.0 10−11m2 s−1 in the medium of a cell interior. How long does it take molecules produced in the cell nucleus to reach the walls of the cell at a distance 1.00um, corresponding to the radius of the cells?
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