Numerade

Questions asked

BEST MATCH

True or false: Scanning electron microscopy is the best choice to visualize gas vesicles. Expalain

BEST MATCH

The demagogue is someone who... Group of answer choices says what the audience wants to hear. exploits emotions and passions to gain power. finds the mean between excess and defect. uses social reason and mutual adjustment to find the stasis of an arguent.

View Answer

BEST MATCH

(a) Imagine you are driving a car up Mbuya hill's peak. To raise a car weighing 1000 kilograms a distance of 100 meters would require about a million joules. You could raise a car 12.5 kilometers with the energy in a gallon of gas. Driving up Mbuya's Peak (a mere 3000-meter climb) should consume a little less than a quarter of gas. But other considerations have to be taken into account. Explain, in terms of efficiency, what factors may keep you from realizing your ideal energy use on this trip. (10 marks) (b) Why-other than the fact that the second law of thermodynamics says reversible engines are the most efficient-should heat engines employing reversible processes be more efficient than those employing irreversible processes? Consider that dissipative mechanisms are the cause of irreversibility. (5 marks) (c) Explain why heat pumps do not work as well in very cold climates as they do in milder ones. Is the same true of refrigerators? (5 marks)

View Answer

BEST MATCH

Integration Evaluate each indefinite integral. 5) \int \frac{1}{x\sqrt{x^2 - 4}} dx 6) \int \frac{1}{\sqrt{25 - x^2}} dx 7) \int \frac{1}{x\sqrt{x^2 - 81}} dx 8) \int \frac{1}{4 + x^2} dx

View Answer

BEST MATCH

Many marine invertebrates release gametes into the surrounding environment and rely on water currents for gamete dispersal and fertilization. This form of sexual reproduction is known as broadcast spawning. This type of reproduction has some distinct advantages over asexual reproduction and other forms of reproduction. Check those advantages that apply.

View Answer

BEST MATCH

If California voters are unhappy with the statute passed by the state legislator they can in most cases with the exception of an urgency measure file petitions within 90 days asking that it be referred to the voters in referendum before becoming law true or false

View Answer

BEST MATCH

Consider the 3 reactions shown below: Reaction A Reaction B Reaction C K_eq = 10^(5-0) = 10^5 a) Circle the best value for Reaction B's equilibrium constant (K_eq) 0 10^5 5 10 b) Match the reactions A-C with their most likely "Free Energy" diagrams and put your answer (A, B, or C) in the boxes below. Reaction c) Draw structures for the transition states TS 1, TS 2, and TS 3 Transition State 1 (TS 1) Transition State 2 (TS 2) Transition State 3 (TS 3)

View Answer

BEST MATCH

Question 16 Which corrects the logic error in the following program? 0 void FindPrevNext(int x, int prev, int next) { prev = x - 1; next = x + 1; } int main() { int x = 10; int y; int z; FindPrevNext(x, y, z); cout << "Previous = " << y << ", Next = " << z << endl; return 0; } prev and next should be initialized in FindPrevNext The variables prev and next should be reference parameters The variables y and z should be initialized to 0 The function FindPrevNext() should have a return statement for variables prev and next 1 pts

View Answer

BEST MATCH

Determine whether the eigenvalues of each matrix are distinct real, repeated real, or complex. [[-47,26,44]] -78 [[-7,2,1]] -8 [[-7,-6,-7]] 7 [[9,-7,-12]] 14 Determine whether the eigenvalues of each matrix are distinct real, repeated real, or complex -47 26] 78 44 Distinct Real [7 2 -8 1 Distinct Real [-7 6] L 7 7 Distinct Real [9 7 14 -12 Distinct Real

View Answer

BEST MATCH

A diprotic acid, H$_2$A, has Ka$_1$ = 3.4 \times 10$^{-4}$ and Ka$_2$ = 6.7 \times 10$^{-9}$. What is the pH of a 0.60 M solution of H$_2$A?

View Answer

luis b.