Is about optic physics (Difraction topic)
Please make diagrams for more illustrative. explain your reasoning PLEASE ! thanks!
The distance between the first and fifth minima of a single slit pattern is 0.350 mm with the screen away 41.3 cm from the slit, using light that has a wavelength of 546 nm. (a) How many minimums does the pattern have? (b) At what angles do they occur? (c) Find the width of the slit.
In: Physics
1. can ice be melted merely by applying pressure? how about dry
ice? Explain your answers.
2. explain how the solid liquid line in the phase diagram of water
differs in character from the solid liquid line in the phase
diagrams of most other substances such as CO2.
3. which phase of a substance (gas, liquid or soild) is most likely
to be the stable phase:(A) at low temperature and high presumes
(b)at high temperature and low pressure?
4. at what temperature and pressures does a substance behave as a
supercritical fluid?
5. explain why a needle floats on the surface of water but sinks in
a container of methanol?
6. explain why the plumbing in a house may burst If the temperature
in the house drops below O°C?
7. a hot needle sinks when placed on the surface of cold water but
a cold needle floats why?
8.what kind of intermoloccular force must be overcome as (a) soild
CO2 sublime (b) CHC13 boils (c) ice melts?
In: Chemistry
Explain in your own words how you would go about developing a behaviorally anchored rating scale
In: Operations Management
What is the policy mix? Explain . How can policy makers use their policy instruments to achieve their domestic policy goals? In your answer explain how macro-policy can be used to combat the problems of recession, overheating, and stagflation.
In: Economics
Social networking has changed the way we communicate with other people. You can communicate with almost
anyone but there are pros and cons to this way of staying connected. Using the points below, share some ideas
related to this topic. Please add reasons/ explanations for your answers. You may add other necessary points as
much as possible.
Question 1:
● What type of communication do you use the most? I.e.: phone, text, or email. State your reason(s).
In: Other
A random survey of 75 death row inmates revealed that the mean
length of time on death row is 17.4 years with a standard deviation
of 6.8 years. Conduct a hypothesis test to determine if the
population mean time on death row could likely be 15
years.
State the distribution to use for the hypothesis test. (Enter your answer in the form z or tdf where df is the degrees of freedom.)
Find the p-value. (Round your answer to four decimal places.)
What is the population standard deviation?
In: Statistics and Probability
10 brands of vanilla yogurt and found these numbers of calories per serving:
130 160 150 120 110 170 160 110 130 90
- Check the assumptions and conditions for inference.
-Create a 95% confidence interval for the average calorie content of vanilla yogurt.
-A diet guide claims that you will get an average of 120 calories from a serving of vanilla yogurt. What does the
evidence above indicate? Use your confidence interval to test an appropriate hypothesis and state your conclusion.
In: Statistics and Probability
What are some of the macro- trends that are likely to be important to the US healthcare system over the next ten years? Pay particular attention to trends in the overall economy, demographics, personal lifestyles and behaviors, technology (including biotechnology and smartphones), and federal and state government policies.
Use SPECIFIC examples from current Google News or NewsHog to support your analysis. This means that you will need to look at the real day-to-day news and see the “macro” in the “micro.”
Please cite your references, thank you
In: Operations Management
4. Which sampling technique you would use for each of
the following experiments. Explain your reasoning.
a. A scientist is interested in the amount of lead in drinking
water of a small town.
b. A botanist is interested in the height of pine trees in a large
forest.
c. A sociologist wants to estimate the number of people in
Minnesota without health insurance.
d. A student wants to estimate the speed of vehicles passing by a
mile post in a rural road for an assignment due next day.
e. A teacher is interested in NWEA math scores of Grade 10 students
in Minnesota\
In: Statistics and Probability
"Price Discrimination"
Does your company use price discrimination? Explain how the practice works of direct and indirect price discrimination works and estimate the effect of price discrimination on profits compared to charging a flat price.
If your company doesn’t currently use price discrimination, are there opportunities to use this pricing technique?
How would you design the scheme?
In: Economics