Charlyn Balolo 2022-10-10
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asked 2021-02-24

If the coefficient of static friction between your coffeecup and the horizontal dashboard of your car is, how fast can you drive on a horizontal roadwayaround a right turn radius of 30.0 m before the cup starts toslide? If you go too fast, in what direction will the cupslide relative to the dashboard?

asked 2021-02-21

A 5.00 kg package slides 1.50 m down a long ramp that is inclined at 12.0 below the horizontal. The coefficient of kinetic friction between the package and the ramp is k =0.310. Calculate 
(a) the work done on the package by friction (b) the workdone on the package by gravity (c) the work done on the package bythe normal force (d) the total work done on the package (e) Ifthe package has a speed of 2.20 m/s at the top of the ramp, what isits speed after sliding 1.50 m down the ramp?

asked 2021-01-10

A 730-N man stands in the middle of a frozen pond of radius 5.0 m. He is unable to get to the other side because of a lack of friction between his shoes and the ice. To overcome this difficulty, he throws his 1.2 kg physics textbook horizontally toward the north shore , at a speed of 5.0 m/s. How long does ittake him to reach the south shore?

asked 2020-11-03

An extreme skier, starting from rest, coasts down a mountainthat makes an angle 25.0 with the horizontal. The coefficient of kinetic friction between her skis and the snow is 0.200. She coasts for a distance of 11.9 m before coming to the edge of a cliff. Without slowing down, she skis offthe cliff and lands down hill at a point whose vertical distance is 4.20 m below the edge. How fast is she going just before she lands?

asked 2022-05-14
asked 2022-05-21

Statement: "Whole System Thinking, resilience, and business continuity. The last thing that any sentient energy-dependent organisation wants is to suffer a supply catastrophe with no or an insufficiently viable Plan B. Using Whole System Thinking can cover just that by implementing back-up solutions for energy infrastructure to ensure that in the event of mains power failure, your systems see a near seamless transfer and maintain continuity of supply. In the complex and sensitive environment of a data centre, failure is not an option. The infrastructure that manages power, cooling, and waste emissions must be resilient, secure, efficient, and affordable, to maintain round the clock connectivity. 


 

Whole System Thinking ensures that you can get exactly what you need for your specific and unique data centre, and not a “one size fits all” solution. What exactly does a Whole System Thinking approach mean for you? Whole System Thinking is not only a philosophy but also as a practical and successful way of working for all stakeholders involved. 


 

Picking up piecemeal can result in the unfortunate outcome of finding problems at a later stage that could have been anticipated and resolved at the outset of the overall construction project and it’s ancillary but essential infrastructure. 


 

While short-term and diffuse planning can make it easy to find short-term cost benefits, it runs the risk of long-term fragmentation and running with systems that are unfit for the future. 

Choose your ground  wisely."


 

What is wrong with this statement? Why is it nonsense?


 

asked 2022-05-16

Describe the transformations on the cubic function below.

Explain your thinking process. f(x)=7[½(x-5)]^3-45

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