Numerade

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In resonance structures, curved arrows represent the spread of electrons, showing how electron density is delocalized between different atoms within a molecule to generate different resonance forms. [Note that in reality, the molecule exists somewhere in between its multiple resonance forms as a "resonance hybrid” and doesn't “convert” from one form to another.] a) Examine the structures below and use curved arrows to illustrate the "conversion" of one resonance form into another. Label the major and minor resonance forms and indicate which ones (if any) are of the same energy. Support your explanation by citing specific structural features from the provided structures. Θ

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What would be the most significant SO strategy for Caesars? A. Market to the 40,000 people who become addicted to gambling each year. B. Retiring baby boomers have disposable income and increasingly enjoy gambling. C. The SWOT is not a reliable tool for the type of industry in which Caesars operates. D. Divest properties in Mississippi.

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A bone fixation device is used following a femoral fracture consisting of a plate and two screws. If the radius of each screw is 4mm and the weight of the patient is 950N (assume all 950N are exerting a downward force on the device for simplicity), determine the shear stress exerted on the screws when the patient in balancing on one leg (the leg with the fixation plate). Enter your answer in MPa.

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5 \Omega -j10 \Omega 10 \Omega + 250\angle0^{\circ} V(rms) \frac{V_{\sigma}}{5} - V_{\sigma}j5 \Omega + Z_{L}

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(a) total resistance R Omega (b) net reactance (x_(L)-x_(C)) Omega (a) total resistance R b) net reactance X-Xc

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Problem #1: A pump accepts liquid water at 20 C, 100 kPa, and a volumetric flow rate of 10 Liter/sec. The water is compressed to 5 MPa in a SSSF process. Neglecting changes in potential and kinetic energy of the water, determine: a) the efficiency of the pump if the exit temperature is 21 C, and b) the exit temperature if the efficiency is 25%. Pump, Power = ? Outlet: 5 MPa Inlet: Liquid HO 20 C, 100 kPa Problem #2: An adiabatic turbine operates by accepting air at 1 MPa and 1300 K and a mass flow rate of 5 kg/s with negligible velocity. The air exits the turbine at a pressure of 100 kPa. In standard operation, the exit temperature is 800 K. Determine a) the efficiency of the turbine, b) the change (increase or decrease) in the turbine power if the turbine operated with ideal processes. Inlet: Air, 5 kg/s 1300 K, 1 MPa Turbine Outlet: 100 kPa Problem #3: A turbine accepts air at a mass flow rate of 10 lbm/s and at 200 psia and 2700 R. The air leaves the turbine at 14 psia and 1520 R. Due to insufficient insulation of the turbine, heat is lost from the turbine at a rate of 400 Btu/s to surrounds at 70 F. The power produced by the turbine is used to drive an R-134a compressor by a rotating shaft connecting the two devices.R-134a enters the compressor as a saturated vapor at 30 psia and leaves at 200 psia and 280 F. Determine the change in mass flow rate (increase or decrease) in the mass flow rate of R-134a if both the turbine and compressor operated with isentropic processes. Note that an ideal and isentropic turbine will be adiabatic. Inlet: Air, 10 lbm/s Outlet: 2700 R, 200 psia 200 psia, 280 F W Gas Turbine R-134a Compressor 400 Btu/s Outlet: 1520 R 14 psia Inlet: Sat. vap. 30 psia

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Pedigree #4 II III IV 2 3 2 Using Pedigree #4, determine the possible genotype of individual #1 in generation I A. AA B. Aa C. aa D. AA or Aa E. XAY F. XaY G. XAXA H. XAXa I. xaxa J. XAXA or XAXa

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Find the steady-state expression for $v_o$ in the circuit of (Figure 1) if $i_g = 1 \cos 2000t$ A. Suppose that $v_o(t) = V_o \cos(\omega t + \phi)$, where $-180^\circ < \phi \le 180^\circ$. Determine the values $V_o$, $\omega$, $\phi$. Express your answers using three significant figures separated by commas. Express $V_o$ in volts, $\omega$ in radians per second, $\phi$ in degrees.

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Reinforcement Schedules The text indicates that in real life, continuous reinforcement is rare. Sometimes responses are reinforced, sometimes not. Among the most important schedules of partial reinforcement are the fixed ratio, variable ratio, fixed interval, and variable interval. Identify the schedule in the examples below by typing your answers to the right of each scenario: fixed ratio variable ratio fixed interval variable interval Points: 10 For example: Frequent flyer program: In Delta Airlines, a customer gets a free one-way flight after accumulating 10,000 miles. fixed ratio 1. buying state lottery tickets and winning 2. A hotel maid may take a 15-minute break only after having cleaned three rooms. 3. Because of the time difference and their busy schedules, a couple living in different time zones schedule a regular time to talk every Saturday at 12 noon. 4. A teenager receives an allowance every Saturday. 5. Getting a free cup of coffee after 10 purchases at Biggby's. 6. A professional baseball player gets a hit approximately every third time at bat. 7. Checking the oven to see if chocolate chip cookies are done, when baking time is known and you have to follow the recipe exactly. 8. A blueberry picker receives $1 after filling 3 pint boxes. 9. Number of throws before a player gets a strike in bowling. 10. The wait time at the Secretary of State office when getting a driver's license without an appointment.

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Question 8 1 pts In the 1860 election, Abraham Lincoln won without a single electoral vote from which region? Far West New England Great Lakes The Lower South

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judith v.