Questions asked
determine the ka fo the weak acid, ch2brcooh, if a 1.490M solution of this acid, has a 2.908% dissociation
[3 points] New Bills Hall Construction Planned by UB. The University at Buffalo is considering building a new lecture hall that would be called Bills Hall, to support the growing engineering school. They expect construction to start 5 years from now and current plans suggest they will need $82 million to fund the new construction. The university has raised $12 million of this cost through its current fundraising efforts, which is deposited today into an investment (i.e. savings) account that will earn 9% (compound) interest per year for the next 5 years. a. [3 points] UB will make one additional deposit into this investment account at the end of year 3. How much will UB need to deposit in order to have the full construction cost (i.e. $82 million) by the end of year 5?
following image: Find a piecewise smooth curve $\gamma$ : $[a, b] \to \mathbb{C}$ with the Determine the length $l(\gamma)$ of $\gamma$ and compute the path integrals $\int_{\gamma} \frac{1}{z} dz$ and $\int_{\gamma} z dz.$
Zinc reacts with hydrochloric acid according to the reaction equation: Zn(s) + HCl(aq) \rightarrow ZnCl_2(aq) + H_2(g) How many milliliters (mL) of 1.72 M HCl (aq) are required to react with 3.52 g of Zn(s)? Express your answer to the correct number of significant figures and include units.
Consider the unity feedback control system with open loop transfer function \frac{K(s+4)}{(s+2)(s-1)} Here, K is a P-controller gain and should be designed such that the closed- loop step response meets the following specifications: 1. Position error ? 10% 2. Overshoot ? 15% 3. Settling time ? 4.5 seconds 4. Rise time as small as possible Provide the detailed design procedure and the discussion on your results. Submit your Matlab files to e-class. You can use either m- file or simulink.
Within a given distribution channel, the following information is available concerning trade margins and costs. A wholesaler has a unit selling price of $773 and a unit cost of $519. The retailer requires a 48% markup on selling price. The manufacturer has unit variable costs of $304. Calculate the manufacturer's percent markup on cost. Report your answer as a percentage and round to the nearest percent.
$\(f_{in}\)$ \(\\rightarrow\\) 0000 \(\\rightarrow\\) \boxed{\text{10 kg}} \(\\rightarrow\\) \boxed{\text{}} \(\\rightarrow\\) \boxed{\text{}} \(\\uparrow\\) \(x_{in}(t)\) \(\\downarrow\\) \text{2 N/m} \text{5 N-s/m} \text{2 N-s/m}
As shown in the figure below, a three-phase, three-wire 240 V, ABC system supplies a delta-connected load which is -25 Ω, 90 Ω, 15 Ω, and 30 Ω. Find the total power P absorbed by the load.
Visual Basic Programming Assignment # 3 Exercise 1 – Miles Per Gallon Calculator Create a Windows program that Calculates a car’s gas mileage. The formula for the miles that a car can travel per gallon of gas is: MPG = Miles / Gallons See sample output in the Canvas files folder VB files. Use the following set of test data to determine if the program is calculating properly. Gallons Miles Miler per Gallon 10 375 37.50 12 289 24.08 15 190 12.67 Exercise # 2– Currency Converter Create a Windows program that converts U.S. dollar amounts to pounds, euros, and yen. The following conversion factors are not accurate (they may have changed over the years) but you can use them in your program: 1 dollar = 0.68 pound 1 dollar = 0.83 euros 1 dollar = 108.35 yen Exercise # 3 - Converting Celsius to Fahrenheit Create a Windows program that converts temperature in Celsius to Fahrenheit. The formula is F = 1.8 * C + 32 where F is the Fahrenheit temperature and C is the Celsius temperature. Use the following values to determine if the program is calculating properly. Celsius Fahrenheit 100 212 0 32 56 132.8
The power at a receiver at a distance of 1000 meters from a transmitter is 0.0002 watts. If the receiver is moved to a distance of 10,000 meters, what is the measured power? 0.00000002 watts 0.000002 watts 0.00002 watts 0.002 watts
