Pt.1) The charge per unit length on a long, straight filament is
59 µC/m. Find the...
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.
Before 2006-07, China’s GDP was able to grow at 8-10% with only
moderate inflation. In 2006-07,...
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...
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...
Able, Baker, and Collins formed a partnership on January 1,
2016, with investments of $200,000, $250,000,...
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...
Two identical cars each of mass 1.8 metric tons, collide head-on
during a crash-test. One car...
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...
For a wind turbine with a rotor diameter of 43 meters, air
density of 1.125 kg/m3,...
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 =...
You measure 26 backpacks' weights, and find they have a mean
weight of 59 ounces. Assume...
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...
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...