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joseph thomas

joseph t.

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q(x) is decreasing on the interval (-infinity, 3] and increasing on the interval [3, infinity) q(x) is concave up on the interval (-5, 0) and concave down on the interval (0, infinity) sketch a function on the axes provided with the given properties

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Why is it important to have T-tubules in skeletal muscle? (Hint think about the shape of a skeletal muscle cell and the number of motor end plates)

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0/1 pt 3 19 Details Construct a probability distribution for the given frequency distribution. (Hint: There were 173 individuals in this sample.) X Frequency 200 13 250 13 300 43 350 12 400 41 450 10 500 31 550 9 600 1 Probability Distribution: X P(x) 200 250 300 350 Enter a mathematical expression [more...] 400 450 500 550 600 Submit Question

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The airplane shown is in level flight at an altitude of 0.50 km and a speed of 150 km/h and is set to drop a package. (a) How long will it the for the package to hit the target X? (b) At what distance d' should it release a heavy bomb to hit the target X?

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Use loop analysis to find $V_o$ in the circuit in the figure.\ 1 mA\ $V_o$\ +\ 12 k$\Omega$\ 6 k$\Omega$\ 20V+\ 12 k$\Omega$\ 2 mA

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NEED THE SOLUTION URGENTLY. 10.20 Consider the problem of minimizing the volume of a tubular reactor that is to be operated under nonisothermal conditions. The gas-phase reaction of interest has a stoichiometry of the form A + B → R + S, with a rate expression: s-y = ky = 30e^(-950/RT) mol/(m^3·s) where ky = 30e^(-950/RT) mol/(kmol·s) for T in K and R in cal/(mol·K). (a) Derive the equation relating the temperature and the fraction conversion that leads to the minimum space time necessary to accomplish a specified conversion task. Consider the case in which the inlet concentrations are Co = Cpo = 50 mol/m^3 and Co = Cso = 3 mol/m^3. Prepare a plot of the optimum operating temperature versus fraction conversion for conversions of the A fed to the reactor ranging from 0.00 to 0.80. Be sure to incorporate volumetric expansion effects associated with thermal expansion of the gas in your analysis. The inlet temperature corresponding to the cited value of Cain is 1466 K. (b) Determine the minimum tubular reactor volumes required to obtain 70% and 80% conversion of the A fed to the reactor when the optimum temperature profile is employed. The inlet volumetric flow rate is 500 m^3/h. (c) Now consider an alternative mode of operation. Suppose that the first portion of the tubular reactor is operated isothermally at 600 K until the fraction conversion reaches 22.0% and thereafter at the optimum temperatures determined in part (b) until the overall conversion reaches the desired level. The feed concentrations are as stated in part (a). Remember to correct for the difference in the inlet temperature of part (a) and the new feed temperature of 600 K. What volumes now correspond to conversions of 70% and 80%? Comment on the difference in volume requirements.

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2? 3? + 4 ? 3A 8? 12 V + 4 ? 2 ? + 8 ? Vo 3 ? Iy With the help of source transformation, the top circuit above was converted into the bottom circuit. For the values of $V_x$ and $I_y$ sources, which of the following is completely correct? Select one: a. None b. $V_x = -12$ V, $I_y = 4$ A c. $V_x = 12$ V, $I_y = 4$ A

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Hi, if you can help with this exercise, with a step-by-step answer or well-explained, that would be great. If we denote the Fourier transform for tempered distributions of the operator S'->S' defined by <T,u>=<T,U>, when F{T}=T Symmetry Property Left uE S.1n that case, if T{u(x)}=U(Y), you have to find F{a}(x)=U(-y). That is to say that U=u(-x). a) Use the definition to compute: D) Use the Property of symmetry in the result of the previous exercise.

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2) In an ideal vapor-compression refrigeration cycle with refrigerant-134a as the working fluid, the refrigerant enters the compressor as saturated vapor at 200 kPa and is compressed to 900 kPa. The Isentropic efficiency of the compressor is 85%. Determine, a) Quality of the refrigerant at the end of the throttling process (1 credits). b) Actual coefficient of performance (COP) (3 credit), c) Show the cycle in a Temperature-entropy diagram along with the states & saturation lines (1 credit) d) What is the minimal work input required (per unit mass) for the compressor (1 credit).

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Catharsis neither occurs nor effectively reduces aggression but the notion of catharsis and its therapeutic effects is widely believed. Why is that?

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