Give a step by step description of the physics and mathematics needed to calculate the trajectory of a water bottle rocket. In addition, if the location of the landing of a water bottle rocket could be controlled, what is the physics and mathematics needed to establish control?
In: Civil Engineering
A solution of an unknown acid is prepared by dissolving 0.250 g of the unknown in water to produce a total volume of 100.0 mL. Half of this solution is titrated to a phenolphthalein endpoint, requiring 12.2 mL of 0.0988 M KOH solution. The titrated solution is re-combined with the other half of the un-titrated acid and the pH of the resulting solution is measured to be 4.02. What is are the Ka value for the acid and the molar mass of the acid?
In: Chemistry
Why is Russia a bigger threat to the United States than China.
In: Economics
If inflation is high in Europe relative to the US, what effect will it have on the value of the US dollar as compared to the Euro? Why?
In: Economics
Show in a diagram the effect on the demand curve, the supply curve, the equilibrium price, and the equilibrium quantity of each of the following events.
a. The market for steel in the United States: Fuel efficiency regulations have reduced the use of steel in automobile production and increased the use of lighter materials such as aluminum AND import restrictions limit the amount of steel that can be imported into the United States.
b. The market for international airline tickets: Incomes decline due to a recession AND Norwegian Airlines adds more U.S. cities to its list of international flight destinations.
In: Economics
Answer to the questions based on your knowledge about positive psychology and happiness theory (PERMA-model; P+E+M) plus the character strengths model.
As people living in the UAE we are very fortunate to live a safe life. We regularly however, hear and see human tragedies unfold around us, which have the capacity to significantly move us. Unfortunately, often society moves too fast to allow us to mindfully reflect and remember those who are suffering. What would happen if we donated some of our time and prayers for those in need?
In: Psychology
Suppose that the Sacramento River Cats can segment their fans into young fans and senior citizens. Young fans have the demand curve P=120-10G(MR=120-20G). Senior citizens have the demand curve P=60-10G(MR=60-20G). Assume that MC=0. (a)What are the equilibrium price and quantity if the monopoly charges both groups the same price?(b)What are the equilibrium price and quantity for each group if the River Cats can segment the market?(c)Calculate producer surplus in each case.
In: Economics
In: Finance
Mr. Sam Golff desires to invest a portion of his assets in rental property. He has narrowed his choices down to two apartment complexes, Palmer Heights and Crenshaw Village. After conferring with the present owners, Mr. Golff has developed the following estimates of the cash flows for these properties.
Palmer Heights |
||||||
Yearly Aftertax Cash Inflow (in thousands) |
Probability | |||||
$ | 10 | .2 | ||||
15 | .2 | |||||
30 | .2 | |||||
45 | .2 | |||||
50 | .2 | |||||
Crenshaw Village |
||||||
Yearly Aftertax Cash Inflow (in thousands) |
Probability | |||||
$ | 15 | .2 | ||||
20 | .3 | |||||
30 | .4 | |||||
40 | .1 | |||||
a. Find the expected cash flow from each apartment complex. (Do not round intermediate calculations. Round your answers to 3 decimal places.)
b. What is the coefficient of variation for each apartment complex? (Do not round intermediate calculations. Round your answers to 3 decimal places.)
c. Which apartment complex has more risk?
In: Finance
Kristopher Company has budgeted sales of $300,000 with the following budgeted costs:
Direct materials $60,000
Direct manufacturing labor 40,000
Factory overhead
Variable 30,000
Fixed 50,000
Selling and administrative expenses
Variable 20,000
Fixed 30,000
Required (10 points):
Compute the average markup percentage for setting prices as a percentage of:
In: Accounting
A single crystal of a metal that has the FCC crystal structure is oriented such that a tensile stress is applied parallel to the [110] direction. The critical resolved shear stress for this material is 1.75 MPa.
1) Calculate the magnitude of applied stress necessary to cause slip to occur on the (111) plane in the (1-10) direction.
2) Calculate the magnitude of applied stress necessary to cause slip to occur on the (111) plane in the (10-1)direction.
3) Which of these two slip systems is the most favourably oriented (which system will see first plastic deformation)?
In: Civil Engineering
e) Based on the information in the Press Release, in the thinking of the MPC did the risk to growth outweighed the risk to inflation or vice versa? Refer to specific points from the press release to back up your argument
In: Economics
1. Provide an example of an inertial frame of reference and a non-inertial frame of reference. Explain the difference.
2. Using the Michelson-Morley experiment as an example, explain why classical mechanics was unable to explain natural phenomena.
3. Using at least one of Einstein's "thought-experiments", explain how special relativity addresses how it is possible for observers in two different inertial reference frames to “disagree” about time and distance intervals.
4. Describe how special relativity explains the conditions under which classical mechanics breaks down. (When would you, as an observer begin to notice the effects of time dilation and length contraction?)
5. In the early 20th century, the law of conservation of mass was replaced by the law of conservation of mass-energy. Why was this change needed, and how does E=mc2 relate to the special theory of relativity?
In: Physics
Explain how employers and job seekers (employees) agree upon the combination of risk of injury and wage rate. Be sure to use graphs and explain each component
In: Economics
What are the limits to the U.S. long-term economic growth? Is there anything that our government can do to address these limits, or would it be a bad idea to try? 250 words maximum
In: Economics