Structural engineers use wireless sensor networks to monitor the condition of dams and bridges. An article describes an experiment in which accelerometers were placed on the Golden Gate Bridge for the purpose of estimating vibration modes. For 18 vertical modes, the system was underdamped (damping ratio < 1). Following are the damping ratios and frequencies for those modes.

If two modes differ in damping ratio by 0.2, by how much would you predict their frequencies to differ? Round the answer to three decimal places.

Predict the frequency for modes with damping ratio 0.75. Round the answer to three decimal places.

Compute the least-squares line for predicting frequency from damping ratio. Round the answers to three decimal places.

Predict the frequency for modes with damping ratio 0.75. Round the answer to three decimal places.

Ramon de la Cruz, CEO for Big Four Corporation, announced to his executive management team that he has decided to implement ________ at the Lakeview plant. The CEO stated, “With this implementation, I want to eliminate unnecessary steps in the production process and continually strive for improvement. We must emphasize productivity, quality, and cost-effectiveness. We must eliminate underused staff positions and waste.”

just-in-time delivery

computer-integrated manufacturing

formalization

lean manufacturing

mass customization

Cruz Corporation has $100 billion of debt outstanding. An otherwise identical firm has no debt and has a market value of $450 billion. Under the Miller model, what is Cruz’s value if the federal-plus-state corporate tax rate is 28%, the effective personal tax rate on stock is 17%, and the personal tax rate on debt is 29%? Enter your answer in billions. For example, an answer of $1.23 billion should be entered as 1.23, not 1,230,000,000. Round your answer to two decimal places.

Complete this formal proof of Ex(P(x)v~P(x)) from the empty set. NOTE: similar to the rule above when instantiating quantifiers, if you need a random name, always start at the beginning of the alphabet. That is, use a first; only use b if necessary; etc.

(i) Derive a generic relationship between the separation of vibrational energy levels, ΔG, and the vibrational quantum number for an arbitrary transition from v to v + 1. [3 marks]

(ii) What factors influence the strength of transitions between two, bound electronic states of a molecule? [3 marks]

(iii) Explain why the rotational constant is different for different vibrational energy levels. A diagram may be helpful. [3 marks]

(iv) Use a diagram to show differences between the experimental measurement of an absorption spectrum and a Raman spectrum? [4 marks]

(v) The solution to the Schrödinger equation for the hydrogen atom results in several quantum numbers. Give the name, symbol, and the physical significance of these quantum numbers, along with the range of their values.

On May 23, 2013, a 160-foot span of the Skagit River Bridge on I-5 north of Seattle collapsed moments after upper bridge supports were struck by a tractor trailer with an oversized load. The truck made it safely across, but two other vehicles fell into the water 24 feet below. Three people were rescued without major injuries. The bridge was constructed in 1955 and designed for an expected life of 50 years.

The Skagit River Bridge is rated by the Federal Highway Administration (FHWA) as functionally obsolete—it is not designed to today’s standards, but it is not necessarily unsafe. The steel element could cause collapse. There are about 18,000 fracture critical bridges throughout the United States, build mostly between the mid-1950s and late 1970s. Modern construction methods are much more resilient to damage.

In 2007, the I-35W bridge carrying traffic over the Mississippi River between Minneapolis and St. Paul collapsed suddenly during rush hour, killing 13 people and injuring 145. The Minnesota bridge, completed in 1967, was also a fracture critical bridge and was classified as structurally deficient by the FHWA. Structural deficiency indicates that the bridge has one or more defects in its support structure or deck and therefore requires maintenance, repair, and eventual rehabilitation or replacement.

The nation’s 611,845 bridges have an average age of 43 years, and almost 23% are rated as either structurally deficient, functionally obsolete, or both. The FHWA calculates that more than 30% of U.S. bridges exceed their 50-year design life. The required fiscal investment for reconstruction and renovation poses a significant challenge for federal, state, and local governments—but some progress is being made. Decisions on how to allocate funding to upgrade and replace deficient bridges are influenced by both economic and non-economic factors.

• The Skagit River Bridge carries an estimated 71,000 vehicles a day and is a main commercial route between the United States and Canada. How would you calculate the economic impact of the catastrophic failure of the bridge? Compare the economic impact to commuters versus commercial traffic.
• What factors should be considered when engineers determine whether to either rehabilitate or replace a deficient bridge?
• The Federal Highway Administration released $1 million in federal emergency funding the state of Washington the day after the I-5 bridge collapse and almost a month later allocated $15.6 million in federal funding to help rebuild the bridge. Discuss the ethical dilemma of state and local governments that have aging infrastructure to repair before tragedy strikes, but insufficient funding to make the repairs.
• Both of the bridges described here were routinely inspected and deemed safe for use. Discuss how this inability to predict structural failures complicates the job of transportation officials.

You are spokesman for the launch of a new electric car by a leading car manufacturer. Determine three key messages and then turn them into sound bites. Practise the sound bites in team with one person playing the journalist. And how can bridges help spokesperson stay on message when an interviewer is asking questions on a topic

A brief summary of the population- The cohort of the present study is based on a total population of all the final semester nursing students from 2015 through 2018. Which includes a total number of nursing students preparing for the State Board exam, approximately 5000.

The sample size to be used in the study, including the process you used to calculate the sample size-