Questions
A red car and a blue car are driving in the same direction on the interstate....

A red car and a blue car are driving in the same direction on the interstate. The red car

is travelling at 25 m/s, while the blue car is travelling at 35 m/s. The driver of the blue

car is not paying attention and rear-ends the red car. The red car has a mass of 2,000

kg while the blue car is only 1,000 kg.

a. Prior to the collision, what is the value of the center of mass kinetic energy?

b. In order for this collision to be isolated, what is the maximum amount of energy

that can be converted to other forms during the collision? What percentage of

the initial kinetic energy does this represent?

c. If the system loses 40% of its kinetic energy in the collision, is the system

isolated? Why or why not?

d. Prior to the collision, how fast and in what direction would you need to be

travelling in order for the system to appear to have zero momentum?

e. Regardless of your answer to part (c), assume now that the two vehicles form

an isolated system. If they cars stick together, how fast will they be moving?

f. What minimum amount of kinetic energy must be conserved in order for this

system to be isolated?

In: Physics

Respiratory and Cardiovascular CPT coding 1. Explain how to code for sinus endoscopies and bronchoscopies, give...

Respiratory and Cardiovascular CPT coding

1. Explain how to code for sinus endoscopies and bronchoscopies, give examples.

2. Review the guidelines that pertain to the insertion of central venous access, explain types, and guidelines that apply to the insertion of these devices.

3. Discuss in detail the guidelines that apply to the coding of pacemakers and implantable defibrillators, first time insertion, revisions and replacements give examples

4. Explain in detail how to code for coronary bypasses, only venous and combined, give an example

In: Nursing

STAT 14_3: Ronit has a box with beads. The beads are opaque or transparent and available...

STAT 14_3:

Ronit has a box with beads. The beads are opaque or transparent and available in several colors.
The probability of a random bead being red is 0.3. The probability of a bead being transparent is 0.6.
Of the red beads - the probability of a random bead being transparent is 0.5.

a. Remove 8 beads from the box at random and upon return. What is the probability that exactly two of them will be red?

b. Take beads out of the box accidentally and on return until you first remove a transparent bead
i. What is the probability of getting more than 4 beads?
ii. The first two beads taken out were not transparent. What is the probability of getting 7 beads out of the box?

c. Remove 10 beads from the box at random and upon return. What is the probability that exactly three of them will be red and transparent, two opaque and red and 5 transparent and red?

In: Statistics and Probability

Suppose it is claimed that the typical adult travels an average distance of 16 miles to...

  1. Suppose it is claimed that the typical adult travels an average distance of 16 miles to get to work each day. You believe this average is too low for Columbus residents. You survey a random sample of 98 adults from Columbus and find that your sample travels an average distance of 17.6 miles to work each day, with a sample standard deviation of 7.8 miles.   Use this information to conduct the appropriate hypothesis test by going through the steps you learned about from our Chapter 22 and Chapter 23 lecture videos (and from your reading of Chapters 22 and 23). Assume the alpha level is .05 (or 5%).

  1. What will the hypotheses be?

Ho:

Ha:

  1. Use the following formula to compute the test statistic.
  1. Based on what you see in Table B, what should the p-value be?

  1. Will you reject or fail to reject the null hypothesis? Please state your decision and the reason why you are making that decision.
  1. In general, if we end up rejecting the null hypothesis when conducting a hypothesis test, we say our results are __________________ significant.

In: Statistics and Probability

Part 8 a) What is average labour productivity? Explain how average labour productivity can impact economic...

Part 8

a) What is average labour productivity? Explain how average labour productivity can impact economic growth measured in terms of RGDP per capita.

b) Average labour productivity is presently higher in Australia than it is in China yet during the 21st Century, China has experienced much higher rates of economic growth compared to Australia.

Explain possible reasons for this drawing on relevant evidence and examples to support your answer.

c) What is meant by diminishing returns to capital? Use a hypothetical example to support your answer.

d) While increasing outplut levels have been a benefit of economic growth, what have been some of the challenges associated with the phenomenon of economic growth? Here consider the broad social and environmental implications that stem from economic growth. In your answer draw on relevant evidence and examples.

At the end of your answer to Part 8 state the combined word for sub-parts a,b,c and d. Your answer to Part 8 including all sub-parts should not exceed 400 words.

In: Economics

In a detailed paragraph, starting with normal and cancer intact cells as well as the preparation...

In a detailed paragraph, starting with normal and cancer intact cells as well as the preparation of the DNA microarray chip, explain in detail how the typical DNA microarray experiment will be performed in order to identify differentially expressed genes. What are the types of probes that can be used for this experiment, and how are they different? Explain how the data will be interpreted.

In: Biology

show formula and detail step,please Thank you! 3. Suppose your company needs $20 million to build...

show formula and detail step,please Thank you!

3. Suppose your company needs $20 million to build a new assembly line. Your target debt–equity ratio is .75. The flotation cost for new equity is 7 percent, but the flotation cost for debt is only 3 percent. Your boss has decided to fund the project by borrowing money because the flotation costs are lower and the needed funds are relatively small. a. What do you think about the rationale behind borrowing the entire amount? b. What is your company’s weighted average flotation cost, assuming all equity is raised externally? c. What is the true cost of building the new assembly line after taking flotation costs into account? Does it matter in this case that the entire amount is being raised from debt?

In: Finance

1. Please explain the operation principle of YIG resonator and MSW thin film resonator. 2 .Please...

1. Please explain the operation principle of YIG resonator and MSW thin film resonator.

2 .Please explain the operation of the dielectric resonator based oscillator.

3. Please answer the following questions for the image rejection mixer.

a. Why the image signal is important in the heterodyne receiver or transmitter not in direct conversion receiver or transmitter?

b. What is benefit to use image rejection mixer instead of image rejection filter?

c. What is limitation in using image rejection mixer?

4. Please explane about three different types of FOMs of VCO based on your knowleage and explain how each FOM can be used for VCO performance.

In: Electrical Engineering

Please state these definition and use detal and espilon: (fn) is a sequence if function: 1.What...

Please state these definition and use detal and espilon:

(fn) is a sequence if function:

1.What is the definition of (fn) is continuous?

2.What is the definition of (fn) is uniformly continuous?

3.What is the difference between the function continuous and the sequence of function continuous?

In: Advanced Math

Use the golden Section search method to find the minimum of f(x)= x/5−sin(x) . Start with...

Use the golden Section search method to find the minimum of f(x)= x/5−sin(x) . Start with the range of 0 to 3, i.e., xl=0, xu=3 . Show two iterations of the Golden Section Search Method by populating the following Table. Again please do all calculations in MATLAB and make sure you have included it in your submission.

i xl f(xl) x2 f(x2) x1 f(x1) xu f(xu) d

In: Advanced Math