Numerade

Questions asked

BEST MATCH

Question 25 (4 points) How many of the following species are diamagnetic? Cs, Zr$^{2+}$, Al$^{3+}$, Hg$^{2+}$ O 0 O 4 O 2 O 1 O 3

View Answer

BEST MATCH

Starvation or fasting is seen in a urine test as: Increased leukocytes Increased pH Increased ketones Increased protein Decreased glucose

View Answer

BEST MATCH

1. BATCH CULTURE TIME. Zymomonas mobilis is used to convert glucose to ethanol in a batch fermenter under anaerobic conditions. The yield of biomass from substrate is 0.06g/g, $Y_{PX}$ is 7.7g/g. The maintenance coefficient is 2.2g/(g*h), the specific rate of product formation due to maintenance is 1.1 h$^{-1}$. The maximum specific growth rate of Z. mobilis is approximately 0.3 h$^{-1}$. Five grams of bacteria are inoculated into 50 liters of medium containing 12g/L glucose. Assume net specific growth rate equals maximum specific growth rate and $k_d$=0, determine the batch culture times required to 1) Achieve 90% substrate conversion 2) Produce 100g of ethanol

View Answer

BEST MATCH

$ 10: 01 \frac{\text { M }}{00} $ V? LTE LTE - expert.chegg.com/qna/aut Chegg Home Expert Q\&A My solutions Notifications 8 Student question (1) Time Left : 00:00:13 The figure shows 3 fixed charges at labeled positions in meters. If the absolute value of $ Q=10.0 $ microcoulombs, what is the $ \mathrm{x} $-component of the electric field at the point $ \mathrm{P} $ ? Let $ \mathrm{x} $ be 3.0 meters. Please give your answer in Newtons per Coulomb.

View Answer

BEST MATCH

(5 marks) \begin{equation*} Let \quad A = \begin{bmatrix} a_{11} & a_{12} & \dots & a_{1n} \\ 0 & a_{22} & \dots & a_{2n} \\ \vdots & \vdots & \ddots & \vdots \\ 0 & 0 & \dots & a_{nn} \end{bmatrix} \end{equation*} be an $n \times n$ invertible upper triangular matrix. \begin{equation*} Find \text{ a diagonal matrix } D = \begin{bmatrix} d_1 & 0 & \dots & 0 \\ 0 & d_2 & \dots & 0 \\ \vdots & \vdots & \ddots & \vdots \\ 0 & 0 & \dots & d_n \end{bmatrix} \end{equation*} and a unit upper triangular matrix $U = \begin{bmatrix} 1 & u_{12} & \dots & u_{1n} \\ 0 & 1 & \dots & u_{2n} \\ \vdots & \vdots & \ddots & \vdots \\ 0 & 0 & \dots & 1 \end{bmatrix}$ such that $A = DU$. Is the factorization $A = DU$ possible if $A$ is not invertible? Justify your answer.

View Answer

BEST MATCH

Score on last try: 0 of 10 pts. See Details for more. > Next question You can retry this question below A 7-kg weight is attached to a spring with constant $k = 175 \text{ kg/s}^2$ and subjected to an external force $F(t) = 315 \sin(4t)$. The weight is initially displaced 3 meters above equilibrium and given an upward velocity of 5 m/s. Find its displacement for $t > 0$, with $y(t)$ measured positive upwards. $y(t) = 712 \sin(4t) + 75 \cos(4t)$

View Answer

BEST MATCH

Topic Between, Within, Total Sum of Squares df Mean square F Bedtime week Between group 86.514 3 28.838 1.403 Bedtime week Within group 4006.843 195 20.548 Bedtime week Total 4093.357 198 Average week night sleep Between group 1.074 3 0.358 0.334 Average week night sleep Within group 209.946 196 1.071 Average week night sleep Total 211.02 199 Sleep academic performance Between group 3.838 3 1.279 1.596 Sleep academic performance Within group 157.117 196 0.802 Sleep academic performance Total 160.955 199 Listed above are the results after running a one-way ANOVA. Based on the results above, can we say that there is a significant difference between the results? If so, should we reject the null hypothesis? Also, is a Bonferroni test appropriate to run with this set of data?

View Answer

BEST MATCH

A radioactive nucleus A ($t_{1/2}$= 42.6 s) with initial number 9420 nuclides. The activity (in Bq) after 95 s equal: a. 32.67 b. 21.89 c. 14.73 d. 17.42 e. 27.05

View Answer

BEST MATCH

0.01 mm. Dielectric loss is estimated to be 0.002 dB/m and conductor loss is estimated to be 0.02 dB/m. What is the attenuation in dB per m and dB per wavelength for this line? A. h=1 mm a=5 mm t=0.01 mm 48 L 0.22 dB/m b) Attenuation constant (dB/m) me Y/apEstoa Q =0.0115 m 1 m=86.96X /c) Attenuation constant (dB/) c =0.011 m d) What is the attenuation at 15 GHz in dB/m for a 20 mm long line? S 48x fT&B

View Answer

BEST MATCH

(d) The full width at half-maximum (FWHM) of a Gaussian fit to the deconvolved CO 7-6 spectrum is 0.48 GHz. What temperature would be required to explain this line broadening? Is this reasonable for the molecular ISM? What (turbulent) velocity would be required to explain this line broadening?

View Answer

sandra s.