A ball enters a frictionless track spiraling upward with a speed vo. The radius of the track is half a meter and it has a pitch (ѳ) of 15°.

(a) If the initial speed of the ball is 12 m/s, how high vertically will it rise?

(b) Compare your answer to part (a) with the height the ball would rise if it had been thrown vertically upward, into freefall, with the same initial speed. Explain your results.

(c) If you wish the ball to make exactly 5 revolutions before momentarily coming to rest, how fast must it initially be moving when entering the spiral track?

(d) What assumptions or simplifications did you make in part (c) about the total distance traveled that leaves your answer very close but not exact (friction is not the answer)? Use Related Quantities in conjunction with Order of Magnitude sense-making to justify your assumptions/simplifications.

This a public health question, please be detail in the reponse and dont copy/ paste google responses

What are the purposes of an evaluation effort?

2. Who benefits from an evaluation? Who is it for?

3. How might the evaluation differ based on stakeholder needs? How might the evaluation differ based on the proposed “use”?

4. How might the format of an evaluation affect community members?

5. What are the most important outcomes to measure in an evaluation?

a) Explain how is a simple microscope constructed, include information about focal lengths for the lenses used.

b)“era of great refractors”. Explain what this means, and then explain several problems inherent with refracting telescopes.

c) What is hyperopia and myopia? What type of lenses correct for each?

d) at what position of the real image from the first lens in a telescope in relation to the second lens do you get maximum magnification for your instrument?

e) If an object is 35 cm away from the lens, where will the image be if the focal length is 22 cm?

An urn contains 10 red balls and 5 green balls. Balls are randomly selected, one at a time, with replacement, until a red one is obtained. What is the probability that exactly k draws are needed? What is the probability that at least k draws are needed? Define a random variable associated with this experiment. Determine its probability mass function and cumulative distribution function, sketch their graphs. Find the expectation, variance and standard deviation of X.

What are the THREE types of muscle tissue found in the body? Which type is voluntary? Which type has cells connected to each other by intercalated discs? Which type is capable of cell division? What structure connects muscles to the bones they move? What do we call the layer of connective tissue that surrounds an entire muscle? What is a motor unit? Define the following terms: 1) myofibril; 2) myosin; 3) actin; 4) sarcomere. What is the name of the protein that gives red muscle fibers their red color?

If an engineer believes that a section of pipe is fully developed what are they claiming in terms of

a) fluid velocity?

b) fluid forces?

Cesearean section rates are on the rise. What are the pros and cons of this? Do you believe too many babies are being born via C-section in the United States?

Part 1

Develop a needs assessment to identify what people in your community need. You can start by identifying key demographics and choosing one group.

Where might you go to receive local statistics on your potential customer? Who may have existing data? How would you go about assessing needs? What data collection methods would you use to understand what these groups need?

*Demographics are statistical data relating to the population and particular groups within it.

Further details:

Identify a need or a problem you would like to solve for your customer. Provide details of WHO your customer is how old they are, what they do for a living, identify their interest, and so on.

Part 2

Describe how you would apply the scientific method and complete each of these steps of the experimentation process in an entrepreneurial area of interest. What potential barriers might you experience, and how would you address these?

Asking lots of questions,

Carrying out background research,

Developing hypotheses,

Testing the hypotheses by running experiments,

Analyzing the data and

Assessing results.

Further details:

Part 2 involves applying the scientific method. So create a hypothesis, which is your solution in section 1. Then, produce a test for examining the validity or correctness of your hypothesis (solution). Once you run your experiment, assess your data, and determine whether you are on the right track or not. What did you learn from your research? How will the data you collected help you going forward?

Part 3

Develop a four-quadrant storyboard to address a problem/need of your choice with your team and present it to your class. As you brainstorm, record questions that come to mind and respond to them. How did the process impact your initial ideas? Be sure to depict the problem, solution, outcomes, and benefits.

Further details:

In part 3, you develop a prototype, which is a visual representation of your product—the storyboard consist of visually depicting the problem, solution, outcomes, and benefits.