xoxo

i) Why we can not see the Sun during the night?

a company is construing an open-top, square-based, rectangular metal tank that will have a volume of 27 cubic feet. what dimensions yield the minimum surface area?

Explain why bat can travel in the dark without hit any object?

What does the quadratic formula do?

Solve for 8x - 3 = 6x - 9

Write four institutional and behavioral features of capitalism? How did karl Marx explore dynamics and crisis of this system?

A 52.8-cm diameter disk rotates with a constant angularacceleration of 3.00 rad/s2. It starts from rest at t = 0, and aline drawn from the center of the disk to a point P on the rim ofthe disk makes an angle of 57.3° with the positive x-axis at thistime.
(a) Find the angular speed of the wheel at t = 2.30 s.
____rad/s

(b) Find the linear velocity and tangential acceleration of P at t= 2.30 s.
linear velocity _____ m/s
tangential acceleration ______ m/s2

(c) Find the position of P (in degrees, with respect to thepositive x-axis) at t = 2.30s.
________°

A grinding wheel is in the form of a uniform solid disk of radius7.00 cm and mass 2.00 kg. It starts from rest and acceleratesuniformly under the action of the constant torque of 0.600 Nm thatthe motor exerts on the wheel. (a) How long does the wheel take toreach its final operating speed of 1 200 rev/min?

2. A disk 8.00 cm in radius rotates at a constant rate of 1 200rev/min about its central axis. Determine the tangential speed at apoint 3.00 cm from its center.

3.A wheel starts from rest and rotates with constant angularacceleration to reach an angular speed of 12.0 rad/s in 3.00 s.Find the angle through which it rotates in this time .

4.A grinding wheel is in the form of a uniform solid disk of radius7.00 cm and mass 2.00 kg. It starts from rest and acceleratesuniformly under the action of the constant torque of 0.600 Nm thatthe motor exerts on the wheel. (a) How long does the wheel take toreach its final operating speed of 1 200 rev/min?

5. A cylinder of mass 10.0 kg rolls without slipping on ahorizontal surface. At a certain instant its center of mass has aspeed of 10.0 m/s. Determine its total energy

6.A horizontal 800-N merry-go-round is a solid disk of radius 1.50m, started from rest by a constant horizontal force of 50.0 Napplied tangentially to the edge of the disk. Find the kineticenergy of the disk after 3.00 s

x.Hm

of the wheel is 2.00 rad/s at

 An HCl molecule is excited to its first rotational energy level, corresponding to  J = 1. If the distance between its nuclei is ro = 0.1275 nm, what is the angular speed of the molecule about its center of mass?

Find A − B and B − A. (Enter your answers in list form. Enter EMPTY or ∠for the empty set.)

(a)

A = {a, f, c, d, e}

and B = {c, f, 6}

(b) A = {1, 2, 3, 4, 5, 6} and

B = {3, 4, 5, 8}

(c)

A = {3, x, b, 8, 6, 7}

and B = âˆ

∫ 6y2 + 12y .dy =  6 ∫ y2 + 2y .dy    

Question 31. 31. The famous observation that households and firms interacting in markets act as if they are guided by an “invisible hand” that leads them to desirable market outcomes comes from whose 1776 book? (Points : 5) David Ricardo Thorstein Veblen John Maynard Keynes Adam Smith Question 32. 32. Which of the following transactions does not take place in the markets for factors of production in the circu-lar-flow diagram? (Points : 5) a landowner leases land to a farmer a farmer hires a teenager to help with harvest a construction company rents trucks for its business a woman buys corn for dinner Question 33. 33. Which of the following is an example of something economists study? (Points : 5) Kate chooses to work overtime to earn extra income for her family. Ryan sells his economics textbook from last semester to his roommate for half the price of a new textbook. The unemployment rate in the United States is at its highest level in over fifty years. All of the above are correct. Question 34. 34. A production possibilities frontier shifts outward when (Points : 5) the economy experiences economic growth. the desires of the economy’s citizens change. at least one of the basic principles of economics is violated. opportunity costs are lessened. Question 35. 35. In the short run, which of the following is not correct? (Points : 5) Increasing the money supply increases the demand for goods and services. Increasing the money supply encourages firms to hire more workers. Lowering the money supply leads to a higher level of unemployment. Policies that encourage higher employment will also induce a lower rate of inflation. Question 36. 36. Which of the following principles is not one of the four principles of individual decisionmaking? (Points : 5) People face tradeoffs. Trade can make everyone better off. People respond to incentives. Rational people think at the margin. Question 37. 37. When a species of fish dies off due to pollution in a river where it once lived, this is an example of (Points : 5) a market failure caused by an externality. a market failure caused by market power. a market failure caused by equality. There is no market failure in this case. Question 38. 38. If the rent for apartments in New York City were fixed below the current price, then we would expect (Points : 5) an increase in the number of people wanting to rent apartments in New York City. a decrease in the number of people wanting to rent apartments in New York City. an increase in the number of apartments available for rent in New York City. None of the above is correct. Question 39. 39. When an economy is operating inside its production possibilities frontier, we know that (Points : 5) there are unused resources or inefficiencies in the economy. all of the economy’s resources are fully employed. economic growth would have to occur in order for the economy to move to a point on the frontier. in order to produce more of one good, the economy would have to give up some of the other good. Question 40. 40. For economists, statements about the world are of two types: (Points : 5) assumptions and theories. true statements and false statements. specific statements and general statements. positive statements and normative statements.

From the Last Word section; Until the Great Depression of the 1930s, many prominent economists, including David Ricardo (1772–1823) and John Stuart Mill (1806–1873), believed that the market system would ensure full employment of an economy's resources. What factors in today’s economic market would up heave this theory?

Criterion Memorability, Likability and Likability of ikea

Why is the human figure so important to Renaissance art? What ideals were expressed through depictions of the human body?

How would you describe the macroeconomic "worldview" of David Ricardo, Karl Marx, and John Stuart Mill?

Find the common element of the ideas of stationary state of david Ricardo and John Stuart mill.

s=-1/2 gt²+v₀ t+s₀, where s is the height of the objected at time t seconds, g is 32 feet per second² and v₀ and s₀ are the initial velocity and initial height, respectively. Two friends are in competition. Each stands on the roof of the apartment building where each one lives. At the same time, each friend stands at the edge of the roof and throws up a basketball as hard as possible. Joan's apartment building is 120 feet high, and she trows the basketball at a speed of 24 feet per second. Joe's apartment building is 105 feet high, and he trows the basketball at a speed of 30 feet per second. a)write the function that describes the height of Joan's basketball, in terms of time measured in seconds. What kind of function is the height function? How do you know? b)Display the graph of the function you found from a) above.

Fit a Parabola: points (1,-10), (2,-30), (-2,2). a)Find the equation of the unique parabola that passes through the three points given. You must show all the algebra necessary to find the equation. b)Use substitutions to verify that each point satisfy the equation you found.

the questions are a,b,c and d

 

b) Determine the limiting reagent. (5 marks)

 

c) Determine the mass of produced (theoretical yield). (2 marks)

 

m = n x M M

 

d) If the actual yield of was 22.3 g, determine the percent yield. (2 marks)

If the diploid chromosome number is 12, each cell has as 6 x 10 -6 grms of DNA, how many chromosomes, chromatids and DNA would you find in the following stages of cell division of a cell. (Assume cytokinesis after anaphase)

Hello--need help!

This question has 3 parts.....

a) Azidomethane (H3CN3) is an uncharged molecule and is one ofthe simplest organic compounds containing an azido group. Draw 3resonance structures for azidomethane. All of the atoms in theuncharged molecule have closed shell configurations in all 3resonance contributors.

b) Which of the 3 resonance structures from (a) makes the leastcontribution to the overall structure of azidomethane? Why?

c) What is the anticipated bond angle and hybridizationspredcited for the centre nitrogen atom?

Please upload answers as an image. Thanks!

What is the reaction force in a beam if three forces affect it  F1= 500 N , F2= 300N , F3= 1000 N ?

Hello,

Easier to screenshot the question.

Please upload answer as an image (at least the drawn part; canexplain by typing)

Thanks!

What is the mass of 6.3 mol of CO?

Give a brief account of adam smith,s labour theory of value. How does this differ from Ricardos labour theory of value.

1. Matlab code to Convert binary/octal/hexdeacimal rational number into decimal

Which quotation from “surrender speech” best expresses a major theme of this speech?

cell biology please just provide the answer to the question, also please use easy simple, and civil tone to answer the question, thank you so much.