Numerade

Questions asked

BEST MATCH

4. You're designing the window to a huge fishtank exhibit and need to ensure the materials can withstand the hydrostatic pressure. The window is an isosceles triangle with an 8m base and 5m height. Assume the surface of the water is roughly at the top peak of the triangle. (25) a) Find the total force F on the wall due to the water. b) Would F increase or decrease if the water surface was 3 m above the top of the triangle? Why a. +5 calc F c) Would F increase or decrease if you inverted the window? (no calculations needed) Why? -8m- 5m

View Answer

BEST MATCH

2. Suppose four neighboring farmers want irrigation systems for their farms. Each farmer can install a system for \$15,000 and is willing to do so. If two farmers go together, they can build a joint system for \$25,000, and three farmers can build one system for three farms at a cost of \$30,000. If a single system provides for all four farms, its cost is \$44,000. a. What is the most efficient arrangement for irrigating all four farms? b. Does the technology of irrigation possess economies of scale at 2 farms? At 3 farms? At 4 farms? Explain.

View Answer

BEST MATCH

A(n) ____ is any device, such as a computer, tablet, or smartphone, connected to a network. A node B data packet C wireframe D Uniform Resource Locator (URL)

View Answer

BEST MATCH

Goods and services produced abroad and sold in the domestic economy are called _____ ? exports ? imports ? transfer payments ? net exports

View Answer

BEST MATCH

A motorist drives north for 28.0 minutes at 72.0 km/h and then stops for 15.0 minutes. He then continues north, traveling 130 km in 1.90 h. (a) What is his total displacement? 91.6 X Your response differs from the correct answer by more than 10%. Double check your calculations. km (b) What is his average velocity? 37.03 X Your response differs from the correct answer by more than 10%. Double check your calculations. km/h

View Answer

BEST MATCH

Scarcity means we have ______ wants and ______ resources to achieve them. limited, limited unreasonable, abundant unlimited, limited selfish, natural

View Answer

BEST MATCH

Moving to another question will save this response. Question 1 1 points Save Answer If an image in grayscale with dimensions of 258 x 248 pixels utilizes 8 bits per pixel and is composed using 4 quantization levels, what would be the size of the new image in K Bytes? Moving to another question will save this response. Question 1 of 7

View Answer

BEST MATCH

If A and B are independent events, what can you say about the conditional probability P(A|B)? Give examples of two events A and B that are independent.

View Answer

BEST MATCH

all contain the "carboxyl" group, sometimes several of them. Which acid is stronger $H_2SO_4$ or $H_2SO_3$? Equilibrium is valid in $2Cu^{2+} (aq) + Sn^{2+}(aq) \leftrightarrow 2Cu^+ (aq) + Sn^{4+}(aq)$ systems at constant temperature. $2Cu^+ (aq) + Sn^{4+}(aq)$ is chemical or physical equilibrium? If the electronegativity values of X=2.7 and Y=3.2, which compound is more acidic? HOX or HOY? $CaCO_3(s) \leftrightarrow CaO (s) + CO_2(g)$ If the Kp of reaction is $1.9 \times 10^{-23}$, is this reaction complete? (completed or not completed). $NH_4^+ + H_2O \leftrightarrow NH_3 + H_3O^+$ Show the acidic compounds in this reaction? The ratio of concentrations of a solute in two immiscible solvents is called the $Cl_2$ is dissolved in A(dipol moment=0) or B (dipol moment =1.87). ) Rank the acid strength of the compounds of A,B,C whose bond energies increase as A<B<C?

View Answer

BEST MATCH

(1) A family pays about $35 per month in water/sewer bill. A water efficient shower head costs $18.75, and it can lower the family's water/sewer cost to $27 per month. How much money can this family save in one year by installing the water efficient shower head? (2) Solve 4x + 2.5 = -20 Show all work and check your answer

View Answer

vanesa m.