Numerade

Questions asked

BEST MATCH

Q1: A shaft is loaded as shown in Figure below. A electric motor of 9 kW capacity is conneted to one end of the shaft and efficiency of electric motor is 80%. The shaft rotates at N^(2)-80rpm. Yield stress of the shaft materials in tension is 300MPa. Find the minimum safe diameter of the shaft if safety factor SF=1,5

View Answer

BEST MATCH

34. There should only be one user in QuickBooks to observe strict confidentiality of financial information a. True b. False

View Answer

BEST MATCH

16. Which of the following is true about book value? A. It fluctuates frequently based on market conditions. B. It represents the original cost of an asset minus accumulated depreciation. C. It is determined solely by the current market price of an asset. D. It represents the value of a company’s assets, including liabilities.

View Answer

BEST MATCH

what is the best denfense for the insertion of a central line

View Answer

BEST MATCH

Firing off a hostile email with no concern for the consequences is an example of disinhibition. O True O False

View Answer

BEST MATCH

how to do this? Consider the indefinite integral xtan(1+x2)dx Which of the following u-substitutions should we make to transform this integral 1 into tan u du? 2 u=tanx u=tanx2+1) u=1+x2 1 T 2

View Answer

BEST MATCH

b) Assuming that strict two-phase locking is in use, describe how the actions of the two-phase commit protocol relate to the concurrency control actions of each individual server. How does distributed deadlock detection fit in?

View Answer

BEST MATCH

In the RC series circuit below, the emf E = 10 V, R = 30 \Omega, and C = 43 \mu F. First, the switch S is closed on point a until the voltage across the capacitor equals half the voltage across the resistor. Just after that, the switch is closed on point b, and the current starts to drop. The experiment ends when the voltage across the resistance decreases by 81%. What is the final charge on the capacitor? Select one $a$ 430.00 \mu C $b$ 81.70 \mu C $c$ 27.23 \mu C $d$ 116.10 \mu C $e$ 348.30 \mu C

View Answer

BEST MATCH

Broken Keypad The keypad on your oven is used to enter the desired baking temperature and is arranged like the digits on a phone. Unfortunately the circuitry is damaged and the digits in the left most column no longer function. In other words, the digits 1, 4 and 7 do not work. If a recipe calls for a temperature that can't be entered, then you would like to substitute a temperature that can be entered. Write a C++ program that inputs a desired temperature. The temperature must be between 0 and 999 degrees. (validate the input.) If the desired temperature does not contain 1, 4, or 7, then output the desired temperature. Otherwise, compute the next largest and the next smallest temperature that does not contain 1, 4, or 7 and output both. For example, if the desired temperature is 450, then the program should output 399 and 500. Similarly, if the desired temperature is 375, then the program should output 380 and 369.

View Answer

BEST MATCH

3.22 In a tanker with cargo capacity of about 800,000 barrels (bbl), the power plant consists of a turbocharged low-speed Diesel engine connected to the propeller as shown in Figure P3.22. At full load, the Diesel engine develops 11 MW of shaft power and consumes 1870 kg of fuel per hour. About 15% of the fuel energy goes to the cooling system. The diesel fuel costs $30/bbl (1 bbl = 158 kg) and transfers into the engine an amount of energy of 11 kWh per kilogram of fuel. The power plant is operated in either of two modes. Mode 2 Economizer Steam: 4 MW Turbocharger + Exhaust gases Stack waste Mode 1 Coolant: 15% of fuel energy Turbine Stack waste Diesel engine Fuel Gearbox Propeller Shaft power: 11 MW Figure P 3.22 When operating in mode 1, a turbine powered by the exhaust gases from the turbocharger provides an additional 1.1 MW of propeller power, in addition to the 11 MW provided by the engine shaft. When operating in mode 2, the exhaust gases from the turbocharger are fed into an economizer and produce 4 MW of steam that is used for heating the cargo. (a) At what rate (in megawatts) is fuel consumed at full load by the tanker in each operating mode? (b) At what rate is energy discharged through the stack in each mode? (c) How would you allocate the fuel cost between the steam for heating the cargo and the propeller power when the tanker operates in mode 2?

View Answer

marina l.