Pt.1) The charge per unit length on a long, straight filament is
59 µC/m. Find the electric field 9.7 cm from the filament, where
the distance is measured perpendicular to the length of the
filament. The Coulomb constant is 8.98755 × 109 N · m2 /C 2
Pt.2)Find the electric field 32 cm from the filament.
Pt.3) Find the electric field 59 cm from the filament.

A thin, non conducting rod with length L lies along the positive
X-Axis with one end at the origin. The rod carries a charge
distributed along its length of λ(x) = bx/L. Determine the electric
potential along the X-Axis at the point x = 2 cm if L = 1 cm and b
= 50 pC/m. Answer = (0.17 V)

Before 2006-07, China’s GDP was able to grow at 8-10% with only
moderate inflation. In 2006-07, some Chinese economists were
arguing for more growth policies. However, with a GDP growth rate
beyond 11% in 2007, China’s inflation surged rapidly to a peak of
8.7%. Use your answers in part (a) and part (b) to explain why (i)
before 2006-07, China was able to grow at 8-10% with only moderate
inflation; and (ii) there was a rapid surge in China’s inflation...

According to a recent poll, 28% of adults in a certain area
have high levels of cholesterol. They report that such elevated
levels "could be financially devastating to the regions healthcare
system" and are a major concern to health insurance providers.
According to recent studies, cholesterol levels in healthy adults
from the area average about 205 mg/dL, with a standard deviation of
about 35mg/dL, and are roughly Normally distributed. Assume that
the standard deviation of the recent studies is accurate...

Evaluate the use of a “weak dollar” policy and the pressure for
protectionism as possible remedies of U.S. balance-of-payments
problems.

Able, Baker, and Collins formed a partnership on January 1,
2016, with investments of $200,000, $250,000, and $350,000,
respectively. For division of income, they agreed to (1) interest
of 10% of the beginning capital balance each year, (2) annual
compensation of $25,000 to Able, $20,000 to Baker and $15,000 to
Collins, and (3) sharing the remainder of the income or loss in a
ratio of 25% for Able, and 25% for Baker and 50% for Collins.
Partnership net income was...

Which of the following is the best definition of Forensic
Accounting?
The practice of applying defined financial ratios to investigate
a companies financial health.
The use of law enforcement to subpoena financial records to
determine unlawful actions.
The application of investigative and analytical skills for the
purpose of resolving financial issues in a manner that meets
standards required by courts of law.
The investigatory arm of the Securities and Exchange
Commission.

It’s believed that a treasure on a sunken wreck will be in a
certain sea area with probability p = 0.4. A search in that area
will detect the wreck with probability d = 0.9 if it’s there.
What’s the probability of the treasure being in the area given a
search didn’t find anything?

Bongo’s nut bar is produced at a highly automated
facility. One of the quality control factors is the
weight of each bar. Samples of 10 bars are taken
regularly and adjustments are made based on the outcome of quality
control process. Average weights and ranges of the
latest samples are reported as following:
Sample
Average
weight
(gram)
Range
1
51
5
2
53
4
3
48
1
4
49
3
5
52
2
What is the upper control limit of X chart?
50.5...

Two identical cars each of mass 1.8 metric tons, collide head-on
during a crash-test. One car was moving at speed 50 mi/hr before
the collision, the other car was moving at 63 mi/hr. After the
collision, the two cars skid together until they come to rest. What
was the total impulse magnitude exerted by friction on the cars
after the collision? Consider the same situation as before, only
after the crash, the cars skid for a short distance before ending...

PCAOB Auditing Standard 1001.01 states that "In all matters
relating to the assignment, an independence in mental attitude is
to be maintained by the auditor or auditors."
All of the Public Company Accounting Oversight Board (PCAOB)
standards are available at www.pcaobus.org.
True
False

For a wind turbine with a rotor diameter of 43 meters, air
density of 1.125 kg/m3, and a wind velocity of 10 m/s, Wind power
density is calculated as follows:
A= Area= ¼ (π) D2 = ¼ (3.1416) (43)2 = 1451m2
Assuming 1m depth of the disk Volume = Area X Depth = 1451m2 X
1m = 1451m3
Mass = Density X Volume = 1.125 kg/m3 X 1451m3 = 1780 kg
WPD = Pwr/ A = ½ ρ V3 =...

Determine the equilibrium pH for a 1.0 mM solution of
NaHCO3 that is in equilibrium with a CO2(g)
partial pressure of 0.10 atm. What is the pH after this solution
comes to equilibrium with the atmosphere (assume
H2CO3* = 10-5.0).
Please solve by spread sheet.

Suppose that a random sample of size 64 is to be selected from a
population with mean 40 and standard deviation 5.
(a) What is the mean of the xbar sampling distribution? 40 What
is the standard deviation of the xbar sampling distribution?
.625
(b) What is the approximate probability that xbar will be within
0.5 of the population mean μ ?
(c) What is the approximate probability that xbar will differ
from μ by more than 0.7?

Suppose a consumer product researcher wanted to find out whether
a highlighter did not last as long as the manufacturer's claim that
their highlighters could write continuously for 14 hours. The
manufacturer claim means that the population of all highlighters
will have a mean writing time of 14 hours with a standard deviation
of 2 hours. The researcher tested 40 highlighters and recorded the
number of continuous hours each highlighter wrote before drying up.
Test the hypothesis that the highlighters...

100
Hz wave with an average power 40W and amplitude 1.5cm travels on a
4m long string. The tension in the string is 60N. Determine the
frequency when tension in string is 50N and amplitude and power
remain constant.
A. 105 Hz
B. 105.70 Hz
C. 104.66 Hz
D. 118.3 Hz
E. 97.70 Hz

You measure 26 backpacks' weights, and find they have a mean
weight of 59 ounces. Assume the population standard deviation is
11.4 ounces. Based on this, what is the maximal margin of error
associated with a 90% confidence interval for the true population
mean backpack weight. Give your answer as a decimal, to two
places

True or False, explain:
1. Any polynomial f in Q[x] with deg(f)=3 and no roots in Q is
irreducible.
2. Any polynomial f in Q[x] with deg(f)-4 and no roots in Q is
irreducible.
3. Zx40 is isomorphic to
Zx5 x Zx8
4. If G is a finite group and H<G, then [G:H] = |G||H|
5. If [G:H]=2, then H is normal in G.
6. If G is a finite group and G<S28, then there is
a subgroup of G...

6) A zoologist weights 24 newborn African elephants born in
captivity. The mean weight of the sample is 180.1 lbs with a
standard deviation of 5.7 lbs.
a) Find a 99% confidence interval for the true weight of newborn
African elephants born in captivity.
b) Provide the margin of error of the interval
as your answer.
Round your answer to 1 decimal place.

TRUE OR FALSE
1. A graph of accuracy and sample size shows that accuracy
decreases as sample size increases.
2. Marketing research is synonymous with market research
3. Exploratory research is best utilized when little is known
about the problem.
4. Dependent variables are those over which the experimenter has
total, direct control; they may be easily manipulated by
experimenters

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