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victor lloyd

victor l.

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A students is carrying a solution preparation of NaCl (58.44 g/mol) 0.5 M to keep the ionic strength at 0.5. Since there was no more NaCl, the student decided to prepare it with Sucrose (342 g/mol). Was the choice the right one? Explain your answer!

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Which of the following are advantages to the consumption of probiotics? More than one answer may be correct. Multiple select question. They can be helpful for managing food allergies. They prevent infection by Clostridium difficile. They are safe to consume. They provide immunity against common viruses.

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Humans require viatamins in their diets what is a major function of these vitamins i There body

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4. Assume that the full employment level of output in an economy is $1000 and the price level associated with full employment output is $100. Also assume that the current level of output is $1,200 and at the full employment price level current aggregate demand is $1,600. The MPC in the economy is 0.85. Draw a clearly labeled graph to demonstrate how the government can move the economy back to the full employment level using TAXES. Indicate the exact amount of change required. (Hint: Review the Fiscal Policy homework and examples for a reminder of how to combine the graph and math calculations.) 1. Draw your own graph on a piece of paper (don't download a graph from the internet). 2. Clearly label all axes, lines, and equilibriums. Include all relevant information.

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x20x p40$ 120 17 Write an expression for the number of blue pens possessed by your friend. (2) (1) ad by your friend.

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A piston-cylinder assembly undergoes a process for which the relationship between pressure and volume is $pV^{1.5}$ = constant. This piston-cylinder assembly contained 0.5 kg of a certain gas. The initial pressure is 5 bar, the initial volume is 0.15 m³, and the final pressure is 0.4 bar. The change in specific internal energy of the gas in the process is $u_2 - u_1$ = -25 kJ/kg. There are no significant changes in kinetic or potential energy. Determine the net heat transfer for the process, in kJ (a) Locate the states on the P-V coordinate and process. (3%) P V (b) Is this a closed system or an open system? (2%) Clearly show your steps to reach the final answer (c) Determine the final volume ($V_2$)? (5%) Clearly show your steps to reach the final answer

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Our planet is facing circumstances that require our attention as responsible citizens of the world. Many challenges as population growth; reduction of food and water resources; wars, epidemic diseases; and global warming are threatens we can not ignore for the future sustainability of life.The present forum is an attempt to offer you the possibility to expose your criteria about the consequences of increasing the temperature of the planet in the widening of areas of influence of LYME DESEASE. Your consideration should have no less that 500-550 words. Please, remember to interact with other students at least once. this participation will be graded. No limitation to participate in other student contribution. The following topics should be treated: Climate change impact on biological systems. (no less than 50 words). Climate change impact on microbes (no less than 50 words). Climate change and infectious diseases (refer to the assigned disease. If the effect is associated to a vector, mention it). 500-550 words.

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Problem 4: A rectangular coil of with dimensions of 0.054 m \times 0.09 m consists of 25 turns of wire and carries a current of 15.0 mA. It is placed in a uniform magnetic field of 0.350 T that is applied parallel to the plane of the loop. (a) What is the magnitude and direction of the magnetic dipole moment of the loop? (b)What is the magnitude of the torque that is acting on the loop?

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2. By applying Bode plot approximations, sketch the response of each filter, and hence complete the Table below. Filter Type Order Cut-off Pass-Band Gain in Stop Band Frequency Gain High Pass second 120kHz 0dB Gain at 15kHz = ? Low Pass fourth 2250Hz 6dB Gain at 18kHz = ? High Pass ? 400Hz 0dB Gain at 50Hz = -18dB Band Pass fourth 60Hz, 4kHz 0dB Gain at 15Hz = ? Gain at 64kHz = ? Low Pass sixth ? 12dB Gain = -60dB at 50kHz

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? The average income in a state was $50,000 per person per year. Suppose the standard deviation is $25,000 and the distribution is right-skewed. Suppose we take a random sample of 100 residents of the state. Complete parts (a) and (b) below. a. What value should we expect for the sample mean? Why? The expected sample mean is $ because the (Type a whole number.) b. What is the standard error for the sample mean? The standard error for the sample mean is $ (Type an integer or a decimal. Do not round.) Time Remaining: 01:14:18 Next

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