Numerade

Questions asked

BEST MATCH

Please solve this question in detail without abbreviations and according to the subject of fluid mechanics and hydraulic machines Here’s the translation of the given text into English: --- Problem: A centrifugal pump with a single impeller has a suction diameter of (20 cm) and a discharge diameter of (30 cm). It rotates at a speed of (30 rpm) and rises vertically by (20 m) above the pump axis through a pipe with: A suction length of (25 m) and a diameter of (10 cm), with a friction factor of (0.05). Atmospheric pressure = (0.3 m). Required: 1. Determine the pressure head at the beginning, middle, and end of the pipe. 2. Calculate the required power in kilowatts (kW) to operate the pump if the suction height is (1.38 m) and the static suction height is (4 m). ---

View Answer

BEST MATCH

What is the time complexity of an exhaustive search algorithm that finds the maximum element in an unsorted list of size $n$? O(n) O(1) O(n$^2$) O(nlogn)

View Answer

BEST MATCH

Find the tangent to the curve at $ x=2 $ \[ y=x^{3}+5 x^{2}-4 x+11 \] $ y=28 x-55 \quad $ b. $ y=28 x-56 $ c. $ y=2 x-2 \quad d y=28 x-25 $ e. $ y=2 x-1 $

View Answer

BEST MATCH

A photoelectric experiment was performed by separately shining a laser with 450nm (blue light) and a laser at 560nm (yellow light). Both lasers cause the photoelectric effect to occur. If we assume the same number of photons is delivered to the metal surface by each laser (the two lasers have the same intensity), select the correct statements. A photoelectric experiment was performed by separately shining a laser with 450 nm (blue light)and a laser at 560 nm(yellow light)Both lasers cause the photoelectric effect to occur. If we assume the same number of photons is delivered to the metal surface by each laser (the two lasers have the same intensity),select the correct statements.

View Answer

BEST MATCH

View Answer

BEST MATCH

(5 pts) Instead of using ice to cool his beverages, professor Marbach uses cold rocks. For a particular drink, he starts by placing 0.4 kg of \"water,\" initially at 28°C into a cup. Then, cold rocks initially at -30°C are added. If a desired equilibrium temperature of 7°C is desired, what mass of rocks is required? If it is observed that the temperature increases to 15°C over 25 minutes, determine the average rate of heat transfer, in watts. Specific heat of \"water\": 4.2 kJ/kg.K Specific heat of rocks: 0.83 kJ/kg.K

View Answer

BEST MATCH

12. Which structure of a virion protects it from degradation when outside the host? a. capsule b. capsid c. envelope d. nucleus e spikes 13. What type of diseases are unique in that they can be transmitted by an infective protein that propagates conformational change of existing molecules without synthesizing entirely new infective molecules? a. viral b. viroid c. bacterial d. virion e.prion 14. What level of classification of viruses is denoted by using the suffix "viridae"? a. genera b. families c. species d. orders e. classes 15. The genome of a. positive-sense (+) b. negative-sense (-) c. all SSRNA viruses can serve directly as mRNA d. double-stranded e. prion 16. David Baltimore proposed that the primary distinction among classes of viruses was the composition and the route used to express messenger RNA. a. genome b. envelope c. capsid d. tegument e. neck 17. What do all viruses contain? a. A genome and an envelope b. A capsid and an envelope c. A capsid and a genome d. A capsid, an envelope, and a genome 18. Viroids are a. RNA; animals -RNA; plants agents that infect

View Answer

BEST MATCH

Chapter 5, Problem 5/061 (video solution to similar problem attached) By inspection, state the quadrant in which the centroid of the shaded area is located. Then determine the coordinates of the centroid. The plate center is M. Answers: $\bar{x}$ = ____ mm $\bar{y}$ = ____ mm

View Answer

BEST MATCH

Required Information Part 1 of 5 NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Consider the set of all permutations of {1, 2, ..., n} where n = 4. 10 points What is the probability of selecting a permutation in which 1 precedes 2?

View Answer

BEST MATCH

Write a C++ program for a Tic Tac Toe game - The program MUST include a 2-D array to store the game pieces on the grid - The program must allow inputs from the player and provide feedback to the player - The program uses user interfaces that provide clear, well-designed, and visually pleasing feedback to the user. - Use a non trivial vector or array at least once -The program must use named constants when appropriate ( no hard coded literals aside from the named constants).

View Answer

tamara r.