Numerade

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Facebook friends according to Facebook self-reported statistics average Facebook user has 130 Facebook friends for a statistics project the student at Contra Costa College test the hypothesis that CC student will average more than 130 Facebook friends. She randomly selected three classes from the schedule of classes and distributes a survey and these classes, her sample contains 45 students from her survey data. She calculates that the main number of Facebook friends for her sample is 138.7 with the standard deviation of 79.3 she chooses a 5% Level of significance what can she conclude from her data?

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1. Positive social interactions are interactions between peers that are successful for both children involved. List some skills that are useful for peer interactions that build social relationships starting with preschool and kindergarten.

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What will happen to the volume of a gas if it’s absolute temperature triples by a factor of three while the number of moles of gas and the volume are held constant

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If the US has a tariff on steel that is imported from China, and the US removes the steel tariff, which of the following is most accurate? US producer surplus will decrease and the price that US consumers will pay for cars will increase. US consumer surplus and US producer surplus will increase. US consumers surplus and US total surplus will increase. Revenue from the tariff will decrease and the quantity of steel produced by US firms will increase.

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Solve the 1-dimensional heat equation problem.\\ $\frac{\partial u}{\partial t} = 2 \frac{\partial^2 u}{\partial x^2}$ \\ $u(0, t) = u(5, t) = 0$, for $t > 0$ \\ $u(x, 0) = f(x) = -4 \sin(\pi x) + 3 \sin(2 \pi x)$, for $0 \le x \le 5$

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1. How radiation intensity changes relative to distance from the source 2. Expected change in radiation intensity as measured from one distance to twice the distance 3. Explain the importance of the ISL with respect to Radiation Protection

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Turkey's Production Possibilities 5.6 5.2 4.8 4.4 Apples (millions of tons) 4.0 3.6 3.2 2.8 B 2.4 2.0 1.6 1.2 0.8 0.4 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Peaches (millions of tons)

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Objective You are required to perform theoretical analysis as well as to use PSpice®/OrCAD® for the following problem. Project Description Design a single pole Low Pass Filter using an Operational Amplifier. The nominal requirements are: 1. Peak Input Amplitude: 0.1V 2. Low Frequency Pass Band Gain: +20dB 3. -3dB Cut-Off Frequency (Fc): 20kHz 4. Input Impedance Voltage: 5?? Deliverables Analyze the circuit for a) Pass Band Gain as a function of Frequency b) 3dB Cut-Off Frequency a) Input Impedance b) Peak Output Amplitude at 1kHz, 10kHz, 20kHz, 40kHz and 80kHz 2. Run a PSpice analysis of the Low Pass Filter circuit. a) Note the Peak Output Amplitude at 1kHz, 10kHz, 20kHz, 40kHz and 80kHz 3. Compare the a. Theoretical values and PSpice values of the Low Pass Filter

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b) Draw all sensible and reasonable resonance form of the molecule: :O: ?

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13.-14. Write the products of the reaction of the oxiranes below with NaOH in water solvent. Are the products meso compounds or are they formed as racemic mixtures? Ph NaOH, water Ph Ph ph NaOH, water 15.-18. Write the organic product of the following reaction. Show cis/trans stereochemistry where appropriate. Indicate R or S or racemic where appropriate. If there is no reaction write \"NR. Ph (R) NaCN, water Ph (R) A Ph NaCN, water Ph (S) 1. LiAlH$_4$, THF solvent 2. HCl, water NaOCH$_3$, CH$_3$OH solvent

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rafael p.