In a Gallup poll, 1025 randomly selected adults were surveyed and 57% of them said that they used the Internet for shopping at least a few times a year. Construct a 99% confidence interval for the true proportion of adults who use the Internet for shopping.
The diagrams below represent different states in the fusion process:
A proton (1H nucleus) and a deuteron (2H nucleus) start out far apart. An experimental apparatus shoots them toward each other (with equal and opposite momenta). If they get close enough to make actual contact with each other, they can react to form a helium-3 nucleus and a gamma ray (a high energy photon, which has kinetic energy but zero rest energy). Consider the system containing all particles. Work out the answers to the following questions on paper, using symbols (algebra), before plugging numbers into your calculator.
A: Bringing the particles together
Which diagram depicts the initial state in the process of bringing the particles together?
cba
Which diagram depicts the final state in the process of bringing the particles together?
cab
Compare the initial state and final states of the system. Which quantities have changed?
kinetic energyrest energypotential energy
The deuterium nucleus starts out with a kinetic energy of8.4e-14joules, and the proton starts out with a kinetic energy of1.67e-13joules. The radius of a proton is 0.9e-15 m; assume that if the particles touch, the distance between their centers will be twice that. What will be the total kinetic energy of both particles an instant before they touch?
joules
B: Reaction to make heliumNow that the proton and the deuterium nucleus are touching, the reaction can occur.
Take the final state from the previous process to be the initial state of the system for this new process.
Which diagram depicts the final state?
abc
Compare the initial state and final states of the system. Which quantities have changed?
potential energykinetic energyrest energy
What is the kinetic energy of the reaction products (helium nucleus plus photon)?
joules
C: Gain of kinetic energy:
What was the gain of kinetic energy in this reaction? (The products have more kinetic energy than the original particles did when they were far apart. How much more?)
joules
D: Fusion as energy source
Kinetic energy can be used to drive motors and do other useful things. If a mole of hydrogen and a mole of deuterium underwent this fusion reaction, how much kinetic energy would be generated?
joules
(For comparison, around 1e6 joules are obtained from burning a mole of gasoline.)
In a friendly game of handball, you hit the ball essentially at ground level and send it toward the wall with a speed of 25 at an angle of 34 above the horizontal. How high is the ball when it hits the wall?
Answer to 7455353In a friendly game of handball, you hit the ball essentially at ground level and send it toward the wall witha speed of 25 at an angle of 34 above the horizontal. How high is the…
In a FRET experiment, the donor GFP (GFP absorbs at 487 nm, emits at 510 nm) is attached to protein A, and the acceptor YFP (YFP absorbs at 514 nm, emits at 535 nm) is attached to protein B. The value of ro is 10Å. a. If protein A does not bind to protein B, fluorescence will be observed at what wavelength?
In a few paragraphs discuss one of the more famous corporate scandals of your choice You may locate these scandals by performing an internet search. What were the criminal charges? who were accused of the crime(s) What was the prosecution outcomes what is your opinion regarding the criminal case? (2) Based on what you have leaned so far in the course what precautions can business owners or corporate executives take in order to safeguard against potential criminal activity within their business organization
Corporate ScandalI would like to present Enron scandal that came into limelight in 2001. Enron formed in 1985from a merger of Houston Natural Gas with Internorth and became the US’s largest Gas…
In a few paragraphs create a succession plan for an employee in a welding company. What concepts are crucial when recruiting team members? Be sure to address the following questions in your response: 1. What are the critical knowledge, skills, and abilities (KSAs) of that position? 2. Will you select, train, or both for these KSAs? 3. How will you ensure your selected successor does not leave the firm? 4. What succession planning process will you use? Follow the steps above in chronological order
In a famous classical conditioning experiment, a dog will salivate when he or she learns to associate the sounding of a tuning fork with the prospect of being fed. At this point the sounding of a tuning fork has become a conditioned stimulus and salivation has become a/an:
automated response.
neutralized response.
behavioral response.
conditioned response.
in a experiment, dr.travis examined the effects of calcium intake on osteoporosis,a condition that causes an increased risk of bone fractures.in the experimental design, the amount of calcium is what variable
In a doctoral program, a learner must assume the role of independent researcher in order to become an expert in their respected field of study. Along the way, learners will need to identify a gap (an area of study that needs to be researched) in order to formulate research question(s). Klingner, Scanlon, and Pressley (2005) detailed the process a researcher takes to produce a scholarly article. Discuss how a review of literature contributes to a doctoral identity by transitioning a learner into a scholar. As you make your way along your doctoral journey, other than completing one course and moving on the next, when and how will you evaluate that you are growing as a learner and as scholar?
Running head: DOCTORAL IDENTITY Doctoral IdentityStudent NameCourse NameSeptember 01, 2017 1 DOCTORAL IDENTITY 2 Doctoral IdentityThe review of the literature has a significant role in doctoral…
In a discussion between Peters and Ferrel, Two auditing students, Peters made the following statement: “A CPA is a professional person who is licensed by the state for the purpose of providing an independent expert opinion on the fairness of financial statements. To maintain an attitude of mental independence and objectivity in all phases of audit work, it is advisable that the CPA not fraternize with client personnel. The CPA should be courteous but reserved and dignified at all times. Indulging in social contacts with clients outside business hours will make it more difficult to be firm and objective if the CPA finds evidence of fraud or of unsound accounting practices.” Ferrel replied as follows: “You are 50 years behind the times, Peters. Auditors and a client are both human beings. The auditor needs the cooperation of the client to do a good job; you’re much more likely to get cooperation if you’re relaxed and friendly rather than being cold and impersonal. Having a few beers or going to a football game with a client won’t keep the CPA from being independent. It will make the working relationship a lot more comfortable, and will probably cause the client to recommend the CPA to other business people who need auditing services. In other words, the approach you’re recommending should be called ‘How to avoid Friends and Alienate Clients.” I will admit, though, that with so many woman entering public accounting and other women holding executive positions in business, a few complications may arise when auditor-client relations get pretty relaxed.”Evaluate the opposing views expressed by Peters and Ferrel
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