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April 20, 2008
Calculate the sound level in decibels of a sound wave that has an intensity of 2.25 µW/m2.
F
2 answers
asked by
chris adison
975 views
Calculate the sound level in decibels of a sound wave that has an intensity of 2.25 µW/m2
For this question don't I use
1 answer
asked by
chris adison
495 views
how could an element emit alpha and beta particles and result in the same element?
1 answer
asked by
cguff
495 views
lim
x-> -infinity 1/(sqaure root of 4/x^2 plus one) i don't understan why the answer is 1.
1 answer
asked by
rudy
391 views
what's the area behind your knees called
1 answer
asked by
sake
382 views
A bullet of mass 50 grams is fired horizontally into a wooden block of mass 0.2kg. The wodden block is suspended from the
2 answers
asked by
ibroo
824 views
Calculate the value of the equilibrium constant (Kc) for the reaction shown, if SbCl5 was found to be 5.57% decomposed at 521K
5 answers
asked by
help!!
637 views
Good Afternoon,
Could you please see if i have translated this english to french correctly? Most squirrels are active during the
4 answers
asked by
Rachael
1,174 views
Find the temperature at which the reaction below is spontaneous given this data:
Hf^o of NH3(g) = - 46 kJ/mol, S^o of NH3(g) =
2 answers
asked by
Amandeep
1,101 views
24 mL of 0.39 mol/L acetic acid is titrated with a standardized 0.33 mol/L KOH solution. Calculate the pH of the solution after
2 answers
asked by
Chaitanya
791 views
Will someone send me the ti 83 steps for: determine the graph of the equation: 9x^2+25y^2+z^2=225
if one is available.
1 answer
asked by
Pam
382 views
What mass of Ag2CO3 would be found in 1.4 L of a saturated solution if the Ksp of Ag2CO3 is 8.2 x 10-12?
2 answers
asked by
Chaitanya
728 views
What is the percent ionization of a 1.38 mol/L weak acid if its Ka = 2.7 x 10^-6?
Thanks again!
2 answers
asked by
Amandeep
1,233 views
Could you please help pe formulate a thesis for the following topic;
'Women in WWII:An important step in womens libertion or
4 answers
asked by
Alyssa Nand
367 views
I am doing a similar assignment as Anaa please help!
y = 3cos(x-1) Amplitude: Period: Two x - intercepts: y-intercept: Domain:
1 answer
asked by
Amandeep
402 views
A weak base with a concentration of 1.3 mol/L has a percent ionization of 0.72%. What is the Kb of this weak base?
2 answers
asked by
Chaitanya,
1,248 views
A crane in a marble quarry is mounted on the rock walls of the quarry and is supporting a 2900kg slab of marble as shown in the
1 answer
asked by
Hong
965 views
Good Afternoon,
Could you please see if i have translated this english to french correctly? Most squirrels are active during the
3 answers
asked by
Alyssa Nand
659 views
I've been doing alot of extra questions for physics lately, and these four are still giving me trouble. Please help me out and
3 answers
asked by
Joe
447 views
A cell, transferred 0.146 mol of electrons with a constant current of 1.24 A. How long, in hours, did this take?
1 answer
asked by
Rishikesh
384 views
Chromium metal can be plated onto an object from an acidic solution of dichromate ions. What average current is required to
3 answers
asked by
Rishikesh
953 views
During the electrolysis of molten aluminum chloride in an electrolytic cell, 5.40 g of aluminum is produced at the cathode.
4 answers
asked by
Rishikesh
1,503 views
Show that the line of symmetry for the graph of f(x)=(x-a)(x-b) is x=(a+b)/2, where a and b are any positive real numbers.
I
1 answer
asked by
Malisa
367 views
For corrosion resistance, a steel bolt is plated with nickel from a solution of nickel(II)sulfate. If 0.250 g of nickel produces
2 answers
asked by
Alex
662 views
A car bumper is plated with chromium using chromium(III) ions in solution. If a current of 54 A flows in the cell for 45 min 30
2 answers
asked by
Alex
728 views
An electroplating cell operates for 35 min with a current of 1,9 A. Calculate the amount, in mols, of electrons transferred.
1 answer
asked by
Alex
393 views
a) why should you use moles in stoichimetric problems?
b) solid reacts violently with water, producing heat, hydrogen gas, and
2 answers
asked by
john
553 views
The first step of the synthesis is described by the reaction below. When 1.200 g of Fe(NH4)2(SO4)2 6H2O is mixed with 13 mL of
1 answer
asked by
david
516 views
i am dry but i am not dry. i am cold but i am not cold many wont come close to me while others wouldnt mind what am i
3 answers
asked by
jonoh
310 views
4+1-2+3
2 answers
asked by
Paige
224 views
26+4*(15-4)
1 answer
asked by
Paige
200 views
I need a Title to my research paper, my topic is about telecommunication and I need it to be specific. I choose the use computer
1 answer
asked by
James
376 views
similarities between and oxidative phosphorylation and photophosphorylation
1 answer
asked by
Helen
444 views
1)Ethanol is made by the fermentation of sugar.
(a)Suggest a temperature for carrying out the fermentation and explain your
3 answers
asked by
Anonymous
1,465 views
1)Ethanol is made by the fermentation of sugar.
(a)Suggest a temperature for carrying out the fermentation and explain your
1 answer
asked by
Anonymous
1,171 views
I need a Title to my research paper, my topic is about telecommunication and I need it to be specific. I choose the use computer
1 answer
asked by
James
397 views
Logarithmics:
Ie: log3 3^11 : Evaluate? Thanks.
1 answer
asked by
Pam
409 views
Determine whether the graphs of the two lines are parallel.
y+3=3x 6x-y=-3 Are the graphs of the given equations parallel?
1 answer
asked by
Shawn
440 views
I am working on the cost of taxation.
Question: The market for pizza is characterized by a downward-sloping demand curve and
3 answers
asked by
G
888 views
please check my answer thanks
For which of the following procedures should you wear gloves ? A veinipuncture B CT scan C EKG D
1 answer
asked by
Helana
369 views
Is water needed in the extraction of aluminium from bauxite in either the Bayer or Hall-Heroult proccesses?
Please reply as soon
1 answer
asked by
Jonathan
429 views
please check my answer thanks
True or False The purpose of OSHA Bloodborne pathogens Standards is to prevent exposure of
2 answers
asked by
Helana
647 views
please check my answer thanks
True or False the review of systems is a history of the patient's previous diseases, injuries and
1 answer
asked by
Helana
413 views
please check my answer thank you
What is the first thing you should do if your bare hands accidentally comes in contact with a
1 answer
asked by
Anonymous
433 views
please check my answer thanks
True or False Korotkoff sounds are related to the determination of blood pressure I picked True
2 answers
asked by
Helana
572 views
please check my answer thanks
what is the normal range of a pulse rate of an adult A 60 -80 B 60-110 C 75-120 D 80-140 I picked B
2 answers
asked by
Helana
779 views
please check my answer
True or False The medical assistant measured the circumference of the infant's head the method of the exam
2 answers
asked by
Helana
681 views
The depth of a body of water can be found by emitting sound pulses reflected from the bottom. If the time interval from emission
1 answer
asked by
Bafana
403 views
what are the methods recomanded by experts for helping victims of bullying?
1 answer
asked by
dudu
370 views
please check my answer thanks
True or False The Fowler's position is used for an exam of the abdomen I said False
1 answer
asked by
Helana
407 views
An ideal gas at 6.0°C and a pressure of 1.92 105 Pa occupies a volume of 2.10 m3.
(a) How many moles of gas are present? moles
2 answers
asked by
Tasha
519 views
Three moles of a monatomic ideal gas expand adiabatically, and its temperature decreases from 430 to 160 K.
(a) What is the work
2 answers
asked by
Tasha
1,045 views
1)Ethanol is made by the fermentation of sugar.
(a)Suggest a temperature for carrying out the fermentation and explain your
2 answers
asked by
Anonymous
790 views
how do i do this...
1+x^-1/1-x^-1. so I know you got 1+x/1/1-x/1. then you go 1/1+x/x*1/1-x/1. then what do i do after that?? the
1 answer
asked by
Miley
311 views
An ideal gas at 6.0°C and a pressure of 1.92 105 Pa occupies a volume of 2.10 m3.
(a) How many moles of gas are present? moles
2 answers
asked by
Johnson
583 views
An apartment has a living room whose dimensions are 2.5 m 4.8 m 5.9 m. Assume that the air in the room is composed of 79%
3 answers
asked by
Johnson
643 views
You drop a hot copper penny (500 degrees celsius) that has a mass of 4.5 grams into a glass of cold water (6.0 degrees celsius)
2 answers
asked by
billy bob j
610 views
19. 6/x^2=-1/x. i know the domain is x doesnt = 0. how do i solve this?
1 answer
asked by
Miley
317 views
Sucrose is commonly known as table sugar. The formula is C12H22O11. You burn 7.29 grams of sucrose in a bomb calorimeter. The
2 answers
asked by
billy bob j
712 views
The pressure and volume of a gas are changed along a path ABCA in the figure. The vertical divisions on the graph represent 3.50
1 answer
asked by
Johnson
523 views
balance the following equations and write an equation for the mole to mole relationship and the mass relationship
a. Na + H2O >
6 answers
asked by
shaggy
474 views
Hi. What was the percentage increase in energy consumption from 1970-1988? In 1970 it was 66.4 and in 1988 it was 80.2 So I
7 answers
asked by
Victor
463 views
Hi, is there anyone who can help me with this essay's English checking? Thank you very much!
##################################
4 answers
asked by
Nina
710 views
a) why should you use moles in stoichimetric problems?
b) solid reacts violently with water, producing heat, hydrogen gas, and
4 answers
asked by
john
497 views
How would you translate 'it was better than i expected' into spanish?
4 answers
asked by
cat
379 views
Please can someone help, I need to find info on what Quakers think of Peace?
1 answer
asked by
mathilda
375 views
i am studying the no child left behind act and i read that some states have a higher level of proficiency than others. In a pdf
1 answer
asked by
maggie
412 views
Why would a manufacturer want to use hydrogenation?
1 answer
asked by
Jessica
475 views
Bonjour Mme
I have tried to implement the corrections that you have given me but i wasn't sure about a few. But here is the
1 answer
asked by
Alyssa Nand
455 views
A specimen taken from the wrappings of a mummy contains 7.02 g of carbon and has an activity of 1.34 Bq. How old is the mummy?
3 answers
asked by
Sandhya
426 views
Sodium Chloride is decomposed into the elements sodium and chlorine by means of electrical energy. How many grams of chlorine
4 answers
asked by
shaggy
1,398 views
2Na + 2H2O > 2NaOH + H2
How do i plug in the masses into this equation. or How do i find the mass relationship
3 answers
asked by
shaggy
472 views
A grocery store has a gallon of milk for $2.30. They also have a 4 litter container of milk for $2.30. Which is the better buy
3 answers
asked by
Dj
770 views
What is the pH of a 1.24 mol/L solution of HCN(aq) if its Ka = 6.2 x 10-10?
Rate my answer please For your understanding: HCN ⇌
4 answers
asked by
Amandeep
2,754 views
Which of the compounds below exhibit geometric isomerism (cis-, trans-)?
1-chloro-1-pentene 1-heptene 1,2-dimethylcyclopentene
4 answers
asked by
lie
771 views
In which of the following poems does the tone change from stanza to stanza?
1) "Storm Ending" 2) "We Wear the Mask" 3) "Any Human
2 answers
asked by
Lucy
542 views
Enter the oxidation number with the sign above each element
H2 OH^- Mg^2+ CO3^2-
4 answers
asked by
Amandeep
431 views
1. during pollination, where is pollen transferred to?
2. the endosperm that forms from the union of a sperm nucleus and the
1 answer
asked by
shaggy
490 views
A________is an example of a compound fruit.
a. blackberry b. pineapple c. both a and b
1 answer
asked by
shaggy
300 views
The roots develop from the________
A. hypocotyl B. radicle C. plumule D. cotyledons
1 answer
asked by
shaggy
274 views
Following are rates of return on medical equip. company's stock and debt, and on the market portfolio, along with the
1 answer
asked by
teresa
496 views
Securities A,B,C have the following;
Sec. Exp.Ret. Beta A 10 .7 B 14 1.2 C 20 1.8 According to CAPM, what is the correct slope
1 answer
asked by
teresa
310 views
Following are rates of return on a medical equipment company stock, debt, and market portfolio, along with probablity of each
1 answer
asked by
teresa
418 views
i need help finding this diabetes how it affects the body, diabetes it affects the body,
4 answers
asked by
Dawn
432 views
I have to match the following:
A. Individualism versus collectivism answer: Humanity theory B. Popular theorist Eysenck initiated
3 answers
asked by
rose - Ms. Sue
747 views
spanish and french explores came to north america looking for what
3 answers
asked by
kathy
590 views
A portion of DNA molecules wound around a spool of histone protein is called a
A. Centromere B. Nuclesome C. Spindle D. Furrow E.
1 answer
asked by
Anna
508 views
After the death of Uthman, the Islamic world split into two groups: The Shiites and the what?
I believe it is the Sunnis. Right?
10 answers
asked by
Tyler
589 views
Islam spread quickly due to :
Good roads Musilims who were expert traders and traveled widely. People making pilgrimages to
1 answer
asked by
Tyler
458 views
Islam treated jews and christians with tolerance, but made them what?
1)Pay special taxes 2)worship Abraham & Moses 3)follow the
6 answers
asked by
Tyler
368 views
match
-Psychodynamic Theory -Trait Theory -Learning Theory -Humanistic Theory -Sociocultural E. Popular theorists include Maslow
2 answers
asked by
rose - Ms. Sue
624 views
match
-Psychodynamic Theory -Trait Theory -Learning Theory -Humanistic Theory -Sociocultural E. Popular theorists include Maslow
2 answers
asked by
rose - Ms. Sue
677 views
TiO2 + C + 2Cl2 > TiCl4 + CO2
If you begin with 1.25 moles of TiO2, what mass of Cl2 gas is needed? i got 175g of Cl2 is my
6 answers
asked by
shaggy
9,163 views
match
-Psychodynamic Theory -Trait Theory -Learning Theory -Humanistic Theory -Sociocultural A. Individualism versus collectivism
2 answers
asked by
rose - Ms. Sue
591 views
how is heliocentric(planets and Earth revolve around the sun) connected to science?
math? the world? you? and y is it important?
1 answer
asked by
anonymous
348 views
what is the word for the definition stress that puches a mass of rock in two opposite directions??
please help!
1 answer
asked by
sami
447 views
I am super confused with permutations and combinations. I just don't see when you are supposed to use each one, and when you
7 answers
asked by
Destiny
802 views
What is the larger group of Muslims?
Shiites or the Sunnis Is the Shiites the largest group?
3 answers
asked by
Tyler
516 views
My French teacher is having us write to our fifth grade pen pals, and I sent my first letter a while ago with everyone else in
9 answers
asked by
Nadine
869 views
I am confused as to how light would work in the following question:
Some very efficient streetlights contain sodium vapour under
5 answers
asked by
Corin
1,025 views
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