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February
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February 22, 2008
The first order reaction has a rate constant of 3.0x10^-3 s^-1. The time required for the r eaction to be 75% complete is:
95.8s
4 answers
asked by
Sam
3,139 views
Explain how a probation officer or parole officer benefits from an understanding of nonverbal communications when interviewing
4 answers
asked by
sara
1,133 views
The foot of a ladder is placed 6 feet from a wall. If the top of the ladder is 8 feet up on the wall, how long is the ladder?
6 answers
asked by
Christina
4,225 views
An object speed up. Then it slows down. Then it changes direction. Which of these are examples of acceleration?
3 answers
asked by
Carly
538 views
How do you solve (a+b)^2 - (a+b)-2?
1 answer
asked by
Vanessa
262 views
ok so i am doing a poem on somebody that i would like to be if i was not me. I can not think of anybody. I know it is based on
3 answers
asked by
Anonymous
278 views
true/false test with 16 questions all answers are guessed what is the mean and std deviation can u tell me how to get the P(x)
1 answer
asked by
NIck
366 views
If you observe a change in an object's speed or direction, you are observing a change in its___________.
a) frame of reference b)
1 answer
asked by
Carly
385 views
If you observe a change in an object's speed or direction, you are observing a change in its ______________.
s) frame of
1 answer
asked by
Carly
487 views
You push a book on a table so that its velocity is constant. If the force that you apply is 15N. what is the force due to
3 answers
asked by
Jennifer
664 views
Who did the american cowboys learn their skills from during th late 19th century???
2 answers
asked by
tommy
528 views
determine whether the series is convergent if so find sum
it is the sum from k=1 to infinity of ((-1)^k)/(3^(k+1)) i found this
2 answers
asked by
sarah
768 views
A rectangular swimming pool that is 12ft by 15 ft has a deck of uniform width built around it. If the area of the deck is 198
4 answers
asked by
Christina
765 views
2. if the sum from n=1 to infinity of a(sub n) converges and a(sub n) does not =0, then the sun from n=1 to infinity of 1/(a(sub
1 answer
asked by
sarah
356 views
We should hire a younger person who knows more about technology.
1 answer
asked by
Anonymous
317 views
what is the difference between all of these?
nouveau, nouvel, nouvelle, neuf
4 answers
asked by
michelle
461 views
I need a good image of the Revolutionary War that shows a wide area. Can you help me?
1 answer
asked by
Binh-An
408 views
what part of the skeleton protects your heart?
4 answers
asked by
JAMBER
477 views
At a picnic, a Styrofoam cup contains lemonade and ice at 0 degree C. The thickness of the cup is 2.0*10^-3m, and the area is
2 answers
asked by
Lydia
942 views
A man can swim 2km/h in still water. Find at what angle to the bank he must head if he wishes to swim directly across a river
4 answers
asked by
Anonymous
2,061 views
simplify
23sqrt(32x^2)-2sqrt(50x^4)
1 answer
asked by
becky
451 views
What dynasty, running from the 15th to 20th centuries, was supported by Pop Gregory having Rudolph I as its first emperor?
4 answers
asked by
Taylor
420 views
Identify similarities and differences between common goods, public goods, private goods, and natural monopolies. Provide an
4 answers
asked by
Lisa
535 views
What is the main function of the endocrine system?
4 answers
asked by
Meli
622 views
can someone help me with the steps to problem below, the fractions are throwing me off 5/8t+2/15t=17/20
5 answers
asked by
katherine
313 views
I need help coming up with ideas for a double-voiced poem (aka: poem for two voices)?
4 answers
asked by
ashlee
551 views
Damon, the problem in the book is
5/8*t + 2/15*t = 17/20
3 answers
asked by
katherine
408 views
Where can i get opinions on stuff? Because i want to know which is a better name for a betta. Samson or Comet.
1 answer
asked by
Sam
351 views
Can someone balance this equation using the half-reaction equation method?
OF2 + I^- ----> F^- + I3^-
1 answer
asked by
Anonymous
423 views
the gas tank of your car holds 21 gallons. It is 1/3 full. How many gallons will it take to fill the tank?
4 answers
asked by
losted
881 views
Is there a salt bridge in a fuel cell?
I think there isn't one because hydroxide ions and hydrogen ions are in the water, so they
1 answer
asked by
william
448 views
Which of the following rxns would most likely occur the fastest?
A. 2AgNO3(aq) + Cu (cr) --> Cu(NO3)2(aq) + 2Ag(cr) B. NaCl(aq) +
3 answers
asked by
Anonymous
666 views
A Goodyear blimp typically contains 5400m^3 of helium (He) at an absolute pressure of 1.1*10^5Pa. The temperature of the helium
4 answers
asked by
Amanda
867 views
Does adding a catalyst to a rxn mixture add energy that causes the rxn to proceed more quickly.
I answered: No, a catalyst simply
2 answers
asked by
Anonymous
555 views
why a
(-)x(-)=(+) (-)x(+)= (-)
3 answers
asked by
Amanda
318 views
determine whether the series is convergent if so find sum:
the sum of x=3 to infinity of (k+1)^2/((x-1)(x-2)) is it infinity
1 answer
asked by
sarah
459 views
true of false
if the sum of asubn from n=1 to infinity converges, and if a is not equal to 0, the the sum of 1/(a sub n) as n
1 answer
asked by
sarah
434 views
Can you check these? And I need help on one.
Oxidation Number Method of Balancing Redox Reactions 1)Neutral Solution Sn^2+ +
1 answer
asked by
Alex
725 views
how much kinetic energy will an electron gain in J and eV if it accelerates through a potential difference of 23,000 volts
3 answers
asked by
shtam8er
1,698 views
I need to know about if Indiana is a mountanous or a prarie place, also about the land features like the elevation above sea
6 answers
asked by
Peter
554 views
Suppose that a tank contains 680m^3 of neon at an absolute pressure of 1.01*10^5 Pa. The temperature is changed from 293.2 to
5 answers
asked by
Annie
3,245 views
Why didn't the Dawes Severalty Act succeed/work?
2 answers
asked by
Rita
550 views
How did American social criticism, imaginative writing, and are all relate to the urban industrialization changes of the late
2 answers
asked by
bill
660 views
2 questions:
An airplane takes off from the ground and reaches a height of 500 feet after flying 2 miles. Given the formula
4 answers
asked by
Anonymous
1,425 views
“Invisible Children,” a documentary filmed by three American college students, Jason Russell, Bobby Bailey, and Laren Pole,
2 answers
asked by
christi
528 views
School is the only common institution where all students can be touched about tolerance .
i need help finding nfo on this
5 answers
asked by
Dawn
481 views
four factors that produces changes in the population of nutrias.
2.what do you think will happen to the nutrias population after
1 answer
asked by
alma
440 views
true of false
if the sum of asubn from n=1 to infinity converges, and if a is not equal to 0, the the sum of 1/(a sub n) as n
2 answers
asked by
sarah
809 views
A 2.00kg object attatched to a spring moves without friction and is driven by an external force given by
F= (3.00N)sin(2pi*t) The
4 answers
asked by
~christina~
985 views
In this equation (Slope Intercept Form of a linear equation), y = mx + b, which variable relates to the domain and which one
2 answers
asked by
James
604 views
Is there a difference between solving a system of equations by the algebraic method and the graphical method? Why?
2 answers
asked by
Duck
640 views
SraJMcGin wrote: Thank you for using the Jiskha Homework Help Forum. For your own safety, NEVER give your name, town, address or
1 answer
asked by
Writeacher
457 views
19. A block of aluminum has a volume of 126.5 cm3. Its density = 2.70 g/cm3. What is the mass
of the aluminum? A) 342 g B) 46.9 g
4 answers
asked by
Ania
512 views
how do u find the average mean for four numbers and the median
3 answers
asked by
sandy
417 views
Add or subtract as indicated. Express your results in simplest form.x^2/x-3-9/(x-3)
1 answer
asked by
lisa
406 views
The units for a first order rate constant are:
M/s 1/M*s 1/s 1/M^2*s
2 answers
asked by
Sam
566 views
We hear people talk of "ultraviolet light" and "infrared light." Why are these terms misleading? Why are we less likely to hear
4 answers
asked by
Shirley
2,027 views
Your friend says that any radio wave travels faster than any sound wave. Do you agree or disagree, and why?
2 answers
asked by
Shirley
674 views
A helium-neon laser emits light of wavelength 633 nanometers(nm). Light from an argon laser has a wavelength of 515 nm. Which
4 answers
asked by
Shirley
1,782 views
If you fire a bullet through a tree, it will slow down inside the tree and emerge at a speed that is less than the speed at
3 answers
asked by
Shirley
1,119 views
What determines whether a material is transparent or opaque?
1 answer
asked by
Shirley
426 views
I was doing an egg experiment that I found on line where you put an egg in white vinegar and the shell softens. It said to leave
2 answers
asked by
Austin
697 views
I just wanted to say THANK YOU so much. You're a lifesaver!
1 answer
asked by
Shirley
271 views
A standard solution of FeSCN2+ is prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN. The equilibrium
1 answer
asked by
thuy
520 views
Find a number such that 32 is 60% of the number.(decimal answer rounded to nearest tenth)
4 answers
asked by
Mike
606 views
What is the commission on a sale of $2,500 if the commission is 16%?
3 answers
asked by
Mike
480 views
On a home improvement project. spent $3000, which was 125% of the original budget (25% over budget). What was the original
3 answers
asked by
Mike
519 views
A tip at a restaurant for service is normally 15% for customary service. After going out with some friends and paying the bill
1 answer
asked by
Mike
405 views
The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN) has an
4 answers
asked by
thuy
653 views
can you please help me write a character study on carrie in carrie's war
3 answers
asked by
numz
437 views
The purchase of office equipment on credit has what effect on the accounting equation?
1 answer
asked by
Billy
798 views
1)If y varies inversely as x and y = 3, when x = 6. Find y when x = 36.
A)72 B)2 C)1/2 D)18 I chose C y1/x2 = y2/x1 3/36 = y2/6
2 answers
asked by
Jon
569 views
N2H4(g) + H2(g) 2 NH3(g) H1 = –1876 kJ
3 H2(g) + N2(g) 2 NH3(g) H2 = –922 kJ The H f for the formation of hydrazine: 2 H2(g)
1 answer
asked by
Charlie
475 views
1)Find the sum of the infinite geometric series: 1 + 3/5 + 9/25 + ..., if it exists.
A)5/3 B)5/2 C)3/5 D)does not exist I chose B
4 answers
asked by
Jon
1,105 views
How did the media's representation of commercial music change during the years 1971-1989 compared to the 1960's? What caused
1 answer
asked by
Lily
407 views
Limestone fizzes when an acid is added. Dilute acids can break up this rock in the open. what is the name of of the process of
1 answer
asked by
tash
388 views
I would like to know how you all start of intro. and conclusion ideas to papers so I can get some ideas that are different from
3 answers
asked by
Dawn
510 views
you are the medical clinic administrator for three physicians group clinic and you are preparing a budget matrix to be presented
1 answer
asked by
olabisi
546 views
a +35x10^-6 C point charge is placed 32 cm from an identical +32x10^-6 C charge. how much work would be required to move a
2 answers
asked by
leesa
844 views
Why is there a loss in C.S. and gain in P.S. when there is a tariff in a small country where there are forward shift tax?
1 answer
asked by
Celia
363 views
antonym for coneal
3 answers
asked by
abdul
503 views
What is the formuals for acceleration?
1 answer
asked by
Mike
346 views
A car increases its velocity from 12 miles per hour to 50 miles per hour in .3 hours. what was the car's acceleration.
3 answers
asked by
Mike
370 views
A rocket is launched with an initial velocity of zero, and with acceleration in feet per second per second defined by:
--------(
4 answers
asked by
Michael
2,562 views
Martha works as a salesperson for momentum sales. she earns $1,000 per month plus 15% commission on her sales.
a. write an
3 answers
asked by
gg
1,133 views
Those of us who love math certainly know two basic facts about Mr. Gottfried Wilhelm Leibniz:
(1) He and Newton (our calculus
44 answers
asked by
Guido
2,386 views
How many different kinds of monomers are there in starch?
3 answers
asked by
Matt Eaton
612 views
I think a good math teacher is someone who can explain math topics at the level of students.
A good math teacher is someone who
9 answers
asked by
Guido
1,483 views
Can you help me figure out how to write a theme PLEASE?????
1 answer
asked by
Jessica
288 views
Besides glycogen, what are the storage and quick-energy forms of carbohydrates found in animals and how are these form
2 answers
asked by
Freddie G
599 views
Can you help me create a theme for my poems please?
5 answers
asked by
HELP
372 views
Suppose Fred's Computers advertises that their new computer comes with exactly 1,200 megabytes of RAM in main memory. Why is
6 answers
asked by
Kristin
548 views
How the change of amplitude effects the time of one cycle of a pendulum?
1 answer
asked by
anum
349 views
How did Hitler get so many followers?
10 answers
asked by
Ginger
533 views
How do I solve
3/4 x 1/2 x 2/3
1 answer
asked by
steve
379 views
How would I show how Tom Sawyer and Huck Finn are alike in a listing question? I think I would say Tom Sawyer is
1. 2. 3 and Huck
2 answers
asked by
Anonymous
1,044 views
“Invisible Children,” is a documentary filmed by three American college students, Jason Russell, Bobby Bailey, and Laren
4 answers
asked by
christi
469 views
I have been searching for information on local media revenue for the Minnesota Twins and was wondering if anyone would know
2 answers
asked by
ss
539 views
“Invisible Children,” is a documentary filmed by three American college students, Jason Russell, Bobby Bailey, and Laren
1 answer
asked by
?
434 views
I was wondering how sub teachers survive during the long
summer months when there is no pay, especially if you live alone and
2 answers
asked by
Guido
1,158 views
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