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December 21, 2013
In the process of electrolysis, electrical power is used to separate water into oxygen and hydrogen molecules via the reaction:
H
0 answers
asked by
Donald
578 views
In the early 20th century, taboos about sex changed, and a birth-control movement enabled women to explore sexuality without
1 answer
asked by
Anonymous
497 views
Practice Dividing by 9
A Jeweler placed 20 necklaces on 5 different tables. He placed the same number of necklaces on each table
2 answers
asked by
Nawaf
653 views
Draw the three dimensional structure of hydrazine (H2N-NH2) and answer the following questions about what you have drawn.
How
1 answer
asked by
938 views
For each pair of materials, indicate which has the larger band gap.
1. GaAs BN 2. AlAs InAs 3. C Ge 4. InAs GaAs 5. InP GaP
1 answer
asked by
377 views
Determine if light with wavelength 3.00 x 10-7 m incident on gallium nitride (GaN) can generate electrons in the conduction
1 answer
asked by
443 views
Determine the amount (in grams) of boron required to be substitutionally incorporated into 1.000 kg of germanium in order to
1 answer
asked by
525 views
On the basis of electrical measurements, it is concluded that the equilibrium vacancy concentration in a given metal is two
1 answer
asked by
526 views
Composition A: 5% MgO - 95% SiO2
Composition B: 20% MgO - 80% SiO2 The two glasses above are soaked in molten calcium chloride
4 answers
asked by
579 views
A pressure vessel is lined with a membrane to reduce the loss of helium. The membrane is made of a material through which the
1 answer
asked by
519 views
A slab of plate glass containing dissolved helium is placed in a vacuum furnace at a temperature of 400 C to remove the helium
1 answer
asked by
662 views
Lead iodide, PbI2, has a Ksp in water of 7.1e-9 M3 at room temperature.
Calculate the solubility of PbI2 in water. Express your
2 answers
asked by
1,178 views
Polyglycolic acid, PGA, is a polymer that we know rather well how to control the structure of (even though there are currently
1 answer
asked by
560 views
Estimate the surface energy of (110) face of K crystals given just the information in the periodic table. Express your answer in
3 answers
asked by
710 views
1.64g of a mixture of cac03 and mhco3 was dissolved in 50ml of 0.8M hcl. The excess of acid required 16ml of 0.25M naoh for
1 answer
asked by
Fai
580 views
Explain how Newton developed a theory to explain why the planets moved according to Kepler’s laws of planetary motion.
0 answers
asked by
Hope Grey
447 views
Which of the following was not a representation or an example of New Women expressing freedom and independence?
Higher education
1 answer
asked by
Anonymous
392 views
nondecomposability? How many morphemes are in that word.
I have five-non,de,ability,com,ity what about the pos?
6 answers
asked by
Student
578 views
calculate the number of molecule h2s04 present in 250ml of 98% by mass of sulphuric solution. Density of solution is 1.84g/ml
Ans
0 answers
asked by
Fai
335 views
0.224g sample that contained only bacl2 and kbr required 19.7ml of 0.1M agn03 to react the end point. Calculate the percent of
0 answers
asked by
Fai
442 views
A particle with specific charge α:=q/m=10e8 C/kg enters a bubble chamber where its path can be observed. A magnetic field of
1 answer
asked by
grock
462 views
Complete the following 2 exercises
1. Prepare a bank deposit detail for a $2230.00 deposit. Use the information in questions A-D.
2 answers
asked by
Tracye
972 views
a man pulls an 80 kg sled up an incline that is at an angle of 25 degrees with the horizontal using a rope attached to the sled
2 answers
asked by
Paul
658 views
A spring is 25 cm long when stretched. The spring was stretched by 18% of its original length. Determine the original length.
6 answers
asked by
Danny
2,162 views
6.8 x 10^2 N
1 answer
asked by
Paul
270 views
Evaluate to four significant digits
log x = 5.3027
2 answers
asked by
Tam
882 views
Show that r = cos theta is a graph of a circle with diameter 1 from 0,0 to 0,1
How to do this algebraically? I know r = sqrt(x^2
4 answers
asked by
Cambridge
321 views
f this be error and upon me proved/ I nevered writ, nor no man ever loved."
What is the impact of these concluding lines from
2 answers
asked by
Helen
1,073 views
What phrase structure rule creates coordinate structures?
I am confused here. Is it prepositional phrases?
7 answers
asked by
Student
495 views
Harvey has his heart set on making the state finals for his track team in the 100 yard dash. Although Harvey knows there are
1 answer
asked by
Samantha
508 views
if 3a+3(b+1)=c, what is b+1 in terms of a and c?
3 answers
asked by
Frank
405 views
PLZ PLZ PLZ HELP. Trying to get over quiz
Harvey has his heart set on making the state finals for his track team in the 100 yard
8 answers
asked by
Samantha
824 views
what means out of 100?
1 answer
asked by
heidi
335 views
what would be another way to phrase "i'm on a rollercoaster that only goes up". like is there another metaphorical or symbolic
4 answers
asked by
Ella
482 views
3. The formula for finding sample standard deviation is ________________.
a.𝑠=∑1▒𝑥−𝑥 ̅^2
1 answer
asked by
Lainy
465 views
Which of the following statements about interest groups is correct?
A. Agricutural business interest have a very short history of
3 answers
asked by
Anthony
617 views
What are the policy implications of the reintegration perspective?
1 answer
asked by
patiance
438 views
How many solutions does the equation x+2 = 2x have
0 answers
asked by
Blissy
295 views
Findtheareaoftheregionboundedbythegraphsofy=|x|+1andy=5
2 answers
asked by
Blissy
228 views
I don't know if finding the perpendicular bisector would help
The x-axis, the y-axis, and the line through the point (1, 3)
1 answer
asked by
Blissy
401 views
Find the distance from the point (5, 6) to the line x + y = 3
I don't get the x+y=3 mean
9 answers
asked by
Lily
389 views
True or False
The null hypothesis is stated in terms of the population, even though the data come from a sample.
2 answers
asked by
lyn
2,248 views
True or False
In most research situations, the goal of a hypothesis test is to reject the null hypothesis.
2 answers
asked by
lyn
3,889 views
Harry's father is seattle's wealthiest citizen?
1 answer
asked by
faith
1,375 views
If the alpha level is changed from a=.05 to a=.01.
a. What happens to the boundaries for the critical region? b. What happens to
1 answer
asked by
Lyn
4,411 views
1. Calculate the de Broglie wavelength in picometers (1 picometer =10^−12 meters) of an electron that has kinetic energy of 10
1 answer
asked by
Kushin Dunos
733 views
In the process of electrolysis, electrical power is used to separate water into oxygen and hydrogen molecules via the reaction:
H
0 answers
asked by
Arnold Smith
467 views
Can someone please help with this problem to advise how to set up and in the book Essential of Statistics for the Behavioral
2 answers
asked by
Lyn
903 views
If (x, y) is on the graph f(x) = log(base10)x, state the coordinates (in terms of x and y) that would be on the graph of f(x) =
1 answer
asked by
Jessie
967 views
write each ratio in simplest form..1) 2 yards to 15 feet.2) in a survey,9 out of 10 doctors recommended a certain medicine.if 80
1 answer
asked by
angie
685 views
estimate each unit rate.1) 295 words in 6 minutes.find each unit price.then tell which has the lower unit rate. 2) $3.99 for
1 answer
asked by
angie
583 views
1. Jaron is downloading a file. The size of the file is 3200 KB. It takes 3 minutes to download the first 1200KB of the file. If
2 answers
asked by
angie
737 views
the function h(x)=1/98x^2 h(x) is the height of part of a rollercoaster track, when x is the horizontal distance in feet from
1 answer
asked by
peg
436 views
PLEASEEE HELPPP
Evaluate exact values, if they exist? if any doesn't exist state so. a) (in randians) sin^-1(-1/√2)
1 answer
asked by
Bobby
404 views
Calculate the de Broglie wavelength in picometers (1 picometer =10^−12 meters) of an electron that has kinetic energy of 10
0 answers
asked by
Henry III
518 views
A student, instead of using the effective mass for Si (1.18∗m(e)), uses the effective mass in Ge (0.22∗m(e)) to calculate
0 answers
asked by
Henry III
341 views
As part of a sinister plot, I connect a piece of high-purity GaAs 1 cm long to a 9 V battery, at room temperature.
What is the
0 answers
asked by
Henry III
362 views
magine the battery is so well made that the electrolyte, housing, and everything else non-electrode is massless. What are the
0 answers
asked by
Henry III
449 views
At 300 K we see the electron concentration in the conduction band for pure (undoped) Si is 10^10/cm3. How many electrons per Si
0 answers
asked by
Henry III
372 views
Write the equation for fill factor in terms of V_max, V_oc, J_max, and J_sc.
FF =
0 answers
asked by
Henry III
265 views
What is the minumum acceleration potential (V) that must be applied to a beam of free electrons for diffraction to occur in a
7 answers
asked by
Harold
563 views
Determine the linear density of atoms (atoms/m) along the [111] direction of gold at 300K.
What is the interplanar spacing (m)
1 answer
asked by
Menes
417 views
If sinθ=4/5 and cosθ<0,find the exact value of cosθ and tanθ
help me!
1 answer
asked by
Zi
404 views
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