What is the average power delivered by the engine yahoo answers

The team would also rely heavily on an already built reputation platform team within YA. The average amount of time offensive content stayed onsite before being removed was 18 hours. They would do this by removing customer care from the moderation workflow for all but the most egregious situations. As the system improved, as the reporters either gained more or less credibility depending on their accuracy and appeal decisions, the entire process would become more and more efficient.

Trusted reporters would be able to remove content almost immediately with fewer additional reports required to verify the action. Reporters with low reputation would be unable to affect content on the website. And content creators would be controlled through a combination of poor reputation, limited website access, or outright bans in some cases.

So why did YA ultimately fail? It was never because of lack of interest. In fact, the popularity of YA continued to soar through the late s and growth continued to exceed all expectations. Those are wild numbers and truly show just how much value the internet community was getting from the platform.

There is a feeling of trust when getting advice from other people. The more you know the person, the more you trust in the advice and counsel you receive. Posting your answer to an online web forum where anonymity is a protected asset can break down that trust barrier beyond repair. A fine measure but one that requires several other triangulation points before it begins to tackle the problem of establishing trust. One of the things you did not get with YA was any concept of identity.

While you did get answers from other human beings, you did not know who those human beings were, what their credentials were, or how their experiences prepared them to give you credible advice. YA gave all users the ability to both ask and answer questions anonymously or with pseudonyms. In the successful versions of YA you had people on the other end of your post who thought about your question, applied their own human reasoning, their powers of empathy, and their ability to put all of this together into a single and comprehensive post.

This was the value of Yahoo Answers: to know you were getting an answer or answers from other people who had been in your shoes and walked the path you were now walking. That gave you comfort, solace and confidence that the information you were getting was dependable and trustworthy. Unfortunately, identity is a key concept to any exchange of trustworthy and reliable information. You can go back and look at their previous answers to gain more confidence, but that requires time and manual effort.

Quora saw the failures in identity from platforms like YA and Ask Jeeves and required that people register with their real names because of this. But again, time is precious and adding burden to the consumers of your system eventually fails when fast, reliable knowledge exchange is the end goal.

Enter the world of reputation. They made the entire system operate and measure user activity behind the scenes. While YA was measuring each and every interaction a user had with the website, they did not expose critical metrics from those measurements that were invaluable to showing transactional experience on the platform.

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Film TV Games. Fortnite Game of Thrones Books. Comics Music. Filed under: Web Tech Featured Stories. Yahoo Answers will be shut down forever on May 4th New, 50 comments. Linkedin Reddit Pocket Flipboard Email. Sincerely, The Yahoo Answers team Perhaps the shutdown is for the best, considering the site appears to be overrun with far-right conspiratorial garbage.

Next Up In Tech. The spark occurs over a relatively short time span, thereby delivering a very low amount of energy to your body. Does the work done in lifting an object depend on how fast it is lifted? Does the power expended depend on how fast it is lifted? If the force is antiparallel or points in an opposite direction to the velocity, the power expended can be negative. A person in good physical condition can put out W of useful power for several hours at a stretch, perhaps by pedaling a mechanism that drives an electric generator.

Neglecting any problems of generator efficiency and practical considerations such as resting time: a How many people would it take to run a 4. What is the cost of operating a 3. A large household air conditioner may consume What is the cost of operating this air conditioner 3. Work done to lift his body can be omitted because it is not considered useful output here. What is its average power output in watts and horsepower if this takes 7. Note that the total mass of the counterbalanced system is 10, kg—so that only kg is raised in height, but the full 10, kg is accelerated.

Hint: You must find the distance the plane travels in s assuming constant acceleration. Calculate the power output needed for a kg car to climb a [latex] 2. A man of mass 80 kg runs up a flight of stairs 20 m high in 10 s. The man of the preceding problem consumes approximately [latex] 1. What is the average power he produces over a day? Compare this with his power production when he runs up the stairs.

An electron in a television tube is accelerated uniformly from rest to a speed of [latex] 8. What is the power delivered to the electron at the instant that its displacement is 1.

Coal is lifted out of a mine a vertical distance of 50 m by an engine that supplies W to a conveyer belt. How much coal per minute can be brought to the surface? Ignore the effects of friction. Assume that friction is negligible and that the wagon starts from rest. Suppose that the engine of a kg automobile has a maximum power output of hp. Assume that the frictional retarding force is the same in both cases.

What is the work done by each force? Consider a particle on which a force acts that depends on the position of the particle.