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Questions Asked on May 12, 2010

The difference between the two acute angles of a right- angled triangle is 2 π/5 radians. Express the angles in degrees.I’ve
1. 10 answers
2. asked by Akash
3. 10,211 views
How many kilojoules of heat are required to melt a 10.0 g popsicle at 0 degress C? Assume the popsicle has the same molar mass
1. 6 answers
2. asked by Anonymous
3. 8,426 views
A 4.00 µF capacitor is connected to a 18.0 V battery. How much energy is stored in the capacitor?This should be a relatively
1. 2 answers
2. asked by Physics
3. 5,498 views
Tarzan, mass 85 kg, swings down on the end of a 28 m vine from a tree limb 4.4 m above the ground. How fast is Tarzan moving
1. 2 answers
2. asked by Jade
3. 3,745 views
(1) Why are fractional coefficients permitted in a balanced thermochemical equation?In thermochemical reactions, only small
1. 2 answers
2. asked by Zacky
3. 3,659 views
Ammonia, NH3, is used as a refrigerant. At its boiling point of -33ºC, the enthalpy of vaporization of ammonia is 23.3 kJ/mol.
1. 3 answers
2. asked by b
3. 3,612 views
Mrs Allen spends 3/5 of her money at the grocery store. Next she spends 3/5 of her remaining money at the petrol station. She
1. 5 answers
2. asked by Allysa
3. 3,510 views
a toy wagon is pulled by exerting a force of 15 pounds on a handle that makes a 30 degree angle with the horizontal. find the
1. 3 answers
2. asked by Nancy
3. 3,371 views
What does it mean to say that a solution is saturated with a solute? (Select all that apply.)a) A solute that is at equilibrium
1. 3 answers
2. asked by Michael
3. 3,060 views
Sulfur trioxide, SO3, is made from the oxidation of SO2, and the reaction is represented by the equation2SO2 + O2 2SO3 A 25-g
1. 1 answer
2. asked by Chris
3. 2,814 views
what is the unit rate for 250 miles in 5 hours
1. 6 answers
2. asked by craig
3. 2,570 views
Select the two conditions that must be met by a thermochemical equation so that its standard enthalpy change can be written as
1. 2 answers
2. asked by write2khin
3. 2,569 views
3.A certain radar installation tracks airplanes by transmitting electromagnetic radiation of wavelength 3 cm.a) Show that the
1. 1 answer
2. asked by Anonymous
3. 2,442 views
How many moles of NaOH are contained in 100.0 mL of 3.00 M NaOH?/
1. 2 answers
2. asked by Carnetta
3. 2,237 views
Kent invested $5,000 in a retirement plan.He allocated X dollars of the money to a bond account that earns 4% interest per year
1. 2 answers
2. asked by Shadow
3. 2,021 views
C3H8 + 5O2 3CO2 + 4H2OHow many grams of oxygen are required to burn 7.0 g of C3H8?
1. 2 answers
2. asked by Chris
3. 2,019 views
which of the following is necessary for large-scale farming to take place in southwest asia?a. use of fossil waters b. dams and
1. 7 answers
2. asked by bree
3. 2,009 views
A clear colorless liquid in an open beaker was heated to boiling. The liquid began to boil at 110°C, and as vapors escaped, the
1. 2 answers
2. asked by Chris
3. 1,809 views
You have 700 dollars in your bank account. Suppose your money is compounded every month at a rate of 0.5 percent per month.(a)
1. 2 answers
2. asked by Anonymous
3. 1,734 views
1. How much heat is absorbed when 63.7g H(small 2)O [water](l) at 100 degrees C and 101.3 kPa is converted to steam at 100
1. 1 answer
2. asked by Anonymous
3. 1,676 views
for Fe + V2O3 -----> Fe2O3 + VOwrite the two half reactions and calculate voltage
1. 1 answer
2. asked by Anna
3. 1,634 views
Delinquent and predelinquent teenagers tend to be "stuck " in ....... of Kohlberg theory of moral development.In this
1. 1 answer
2. asked by vedrana
3. 1,603 views
An organism's ability to maintain steady internal conditions despite changes in its external environment is calledbiogenesis
1. 1 answer
2. asked by joe
3. 1,507 views
if P(-4,1) is a point on the terminal side of angle (theta), in standard position, then what is the exact value of csc (theta)?
1. 1 answer
2. asked by Courtney
3. 1,501 views
A mixture contains 5.00 g each of O2, N2, CO2, and Ne gas. Calculate the volume of this mixture at STP. Calculate the partial
1. 1 answer
2. asked by ~anonymous
3. 1,495 views
although helium atoms do not combine to form He2 molecules is it fair to say that London dispersion forces (induced dipole
1. 1 answer
2. asked by Andy
3. 1,449 views
The angle of elevation of a 15-ft ladder is 70°. Find outhow far the base of the ladder is from the wall.
1. 2 answers
2. asked by kristi
3. 1,410 views
If 8.00 g of ammonuim nitrate is dissolved in 1000 ml of water for use as a plant fertilizer, the water decreases in temperature
1. 1 answer
2. asked by Nicole
3. 1,349 views
Use mathematical induction to prove that 5^(n) - 1 is divisible by four for all natural numbers n. Hint: if a number is
1. 1 answer
2. asked by Help
3. 1,317 views
A pan of cold water with a temeprature of 35 degrees F is brought into a room with a temperature of 75 degrees F. After one
1. 0 answers
2. asked by Melissa
3. 1,309 views
a sock drawer contains 10 white socks, 6 black socks, and 8 blue socks.if 2 socks are chosen at random, what is the probability
1. 1 answer
2. asked by jane
3. 1,251 views
What should you say if you see a tall wrought-iron tower in paris, france?
1. 3 answers
2. asked by Bob
3. 1,249 views
An equilibrium mixture at 852 K is found to contain 3.61 x 10^ - 3 mol/L SO3. Calculate the equililbrium , constant , keq for
1. 5 answers
2. asked by Ana
3. 1,227 views
You are provided the following information on a company. The total market value is $40 million. The capital structure, shown
1. 0 answers
2. asked by Lakisah
3. 1,179 views
What are positive and negative ramifications of discounted fee-of-service arrangements
1. 1 answer
2. asked by Rita
3. 1,174 views
Marx clothing store is selling a lot of items. On monday 495 items were sold. on tuesday 450 items were sold. on friday 593
1. 3 answers
2. asked by Logan
3. 1,164 views
if the ration of water drops to EDTA is 6.7 for the known sample and 10 for the unknown sample what is the concentration of the
1. 3 answers
2. asked by alex
3. 1,148 views
which cell is catalase more present in ?plant or animal
1. 0 answers
2. asked by Mary
3. 1,131 views
Mrs Allen spends 3/5 of her money at the grocery store. Next she spends 3/5 of her remaining money at the petrol station. She
1. 4 answers
2. asked by Beatrice
3. 1,092 views
a cylinder has a volume of 19cm cubed, if the radius is doubled what is the volume of the new cylinder
1. 1 answer
2. asked by trejohn
3. 1,070 views
Two adjacent sides of a rhombus are represented by 5x+7 and 6x-1. Find the value of x
1. 1 answer
2. asked by kaylee
3. 1,047 views
What are 3 examples of forces in nature which cause Physical or Mechanical Weathering
1. 1 answer
2. asked by Dee
3. 1,014 views
what is the ratio of water drops to EDTA if 2 drops of EDTA was needed to change the color of 20 drops of water with unknown
1. 3 answers
2. asked by alex
3. 1,000 views
When substances such as sugar and table salt are dissolved in water, the freezing points of the new solutions are lower than the
1. 1 answer
2. asked by kayci
3. 992 views
a 100 pound collar slides on a frictionless vertical rod. find the distance y for which the system is in equilibrium if the
1. 2 answers
2. asked by Nancy
3. 990 views
A note receivable Mild Max Cycles discounted with recourse was dishonored on its maturity date. Mild Max would debit:A. A loss
1. 1 answer
2. asked by Moore
3. 987 views
Calculate the ph of a buffer solution that is 0.10M in ammonia and 0.15M in ammonium chloride .kb for ammonia is 1.8*10^-5
1. 2 answers
2. asked by lina
3. 979 views
one day, at the high jump mat, Lucy,a 4'4 jumper, asks Georgina, a 5' jumper."When running here,breathing doesn't really count
1. 1 answer
2. asked by taryn
3. 970 views
waht role does justice play in post colonial philosophy?
1. 0 answers
2. asked by lisa smith
3. 970 views
When substances such as sugar and table salt are dissolved in water, the freezing points of the new solutions are lower than the
1. 2 answers
2. asked by kayci
3. 967 views
Compare and contrast the rate at which a sugar cube in cold water and granulated sugar in warm water would dissolve. Include how
1. 3 answers
2. asked by Anonymous
3. 963 views
which of the following is the best reason salt is sometimes spread on icy highways?1) when a car drives on the ice, the firstion
1. 2 answers
2. asked by kayci
3. 944 views
Let's assume there are 3 people in Room A and another 3 people in Room B. The ages of the people in Room A are 25, 25, and 25.
1. 1 answer
2. asked by carol
3. 939 views
According to the analyses of the stories you were asked to read, "A Pair of Silk Stockings" best represents literary
1. 4 answers
2. asked by marie
3. 935 views
a gas mixtuer consists of equal masses of methane(molecular weight 16.0) and argon (atomic weight 40.0) if the partial pressure
1. 4 answers
2. asked by Andy
3. 925 views
Ammonia, NH3, and oxygen can be reacted together in the presence of a catalyst to form only nitrogen(II) oxide and water. The
1. 1 answer
2. asked by Chris
3. 922 views
Why does wood burn rapidly in a fireplace that has a good draft of air?is this answer correct Wood burns in a fire place that
1. 1 answer
2. asked by Marge
3. 917 views
How much concentrated 12 M hydrochloric acid is needed to prepare 100.0 mL of a 2.0 M solution?
1. 2 answers
2. asked by {RayRay} NEED HELP PLZ
3. 912 views
you roll a fair number cube twice. what is the probability of rolling two 3's if the first roll is 5
1. 1 answer
2. asked by jane
3. 910 views
a large fiberglass tank was placed in a pit, before pipes could be attached and the tank filled with gasoline, the workers were
1. 3 answers
2. asked by kayci
3. 892 views
If solid copper sulfate is mixed with water, what is formed? A mixture, a solvent, a solution or both a mixture and a solution?
1. 3 answers
2. asked by sue
3. 891 views
How many electrons make up a charge of -30.0 ìC?
1. 2 answers
2. asked by Laila
3. 888 views
The tracks of the astronauts who landed on the moon are still there in the dust and show no signs of being worn away. This is
1. 0 answers
2. asked by kayci
3. 875 views
How many grams of lithium nitrate, LiNO3, are required to prepare 3.00 × 102 mL of 2.00 × 10–1 M solution?
1. 1 answer
2. asked by Chris
3. 854 views
My teacher has us doing a virtual Titration lab on sciencegeek site but never demonstrated a Titration Lab so I really don't
1. 6 answers
2. asked by Shelley
3. 819 views
If you multiply me by 2, I become a number greater than 20 and less than 40. If you multiply me by 6, I end in 8Multiply me by
1. 6 answers
2. asked by Adam
3. 812 views
a pendulum has a bob of 0.20kg and is suspended by a string of negligible mass near the earth's surface. the pendulum is
1. 1 answer
2. asked by secret
3. 809 views
A boat heads 15 degrees west of north with a water speed of 3m/s. Determine its velocity relative to the ground when there is a
1. 0 answers
2. asked by Ariza
3. 802 views
You have 700 dollars in your bank account. Suppose your money is compounded every month at a rate of 0.5 percent per month.(a)
1. 0 answers
2. asked by Anonymous
3. 795 views
The owner of a candy store packs all of the sweets from a box into packets of 9, 12, 18 sweets .a. what is the smallest number
1. 10 answers
2. asked by guitarman
3. 789 views
Find the area it encloses.r = 5cos(θ)
1. 3 answers
2. asked by Mike
3. 789 views
1. How much heat in kilojoules is needed to bring 2.00 kg of water from 27.7 to 82.6 ¡ãC (comparable to making four cups of
1. 1 answer
2. asked by write2khin
3. 777 views
In this problem, you will describe in detail how we arrive at the accepted definition of the function y= Arccsc(x)a) Sketch the
1. 1 answer
2. asked by Jake
3. 763 views
Calculate the force in Newtons that exists between a positive charge of 2C and a negative charge of 5.2 X 10^19 electrons
1. 3 answers
2. asked by Kevin
3. 759 views
For this writing assignment, you are going to see words out of order and perhaps not in the correct form you will need for the
1. 2 answers
2. asked by Greiye
3. 748 views
A steel cylinder contains 128 grams of oxygen (O2) at 25*C and a pressure of 1000 torr. at STP 1 mol of a gas occupies 22.4 L.
1. 2 answers
2. asked by Dana
3. 731 views
the reaction between CV+ and -OH, is CV+ lewis acid and OH lewis base
1. 1 answer
2. asked by bme1
3. 730 views
in its signed petition to the king, which rights did the First Continental Congress claim colonists had?
1. 1 answer
2. asked by gianni
3. 725 views
you observe a high tide at 3:00 a.m. If it takes about 6 1/4 hours for the tide to change from hight to low, whic of the
1. 3 answers
2. asked by kayci
3. 723 views
i just want to know if my answeres are correct!A.The problem = the main issue or subject being in vestigated in the study B.a
1. 2 answers
2. asked by kayci
3. 721 views
The earth wobbles slightly on its axis. which of the following earth processes might best account for these changes in earth's
1. 1 answer
2. asked by kayci
3. 679 views
Could someone please check my answers for me..Thanks1. Mary needs Medicaid coverage. Where should she start looking for
1. 1 answer
2. asked by Anonymous
3. 672 views
which color of the visible region of the electromagnetic spectrum has the highest energy?a. red b. blue c. green d. violett
1. 1 answer
2. asked by alex
3. 669 views
Tony liked that car at the dealership. The verb in this phrase would be "at" right because it shows the action of where he likes
1. 1 answer
2. asked by Fabian
3. 663 views
are these complex sentence. if it is complex, and are the subordinate clause rightare these right? the subordinate clause are in
1. 1 answer
2. asked by Sara!
3. 658 views
what is the ratio of water drops to EDTA if 2 drops of EDTA was needed to change the color of 20 drops of water with unknown
1. 3 answers
2. asked by alex
3. 650 views
which group of seed producers are the largest, most massive and oldest in the world?angiosperms or gymnosperms?
1. 1 answer
2. asked by Marie
3. 640 views
A substance seems to completely fill a container, but more can be forced in. Is the substance a solid, liguid, gas or none of
1. 2 answers
2. asked by sue
3. 639 views
In Homer Odyssey - According to Odysseus what is the cause of the doom he and his men face on the Island of Cicones?
1. 0 answers
2. asked by Mark
3. 638 views
what is the antonym of/for guilty?????
1. 2 answers
2. asked by Anonymous
3. 634 views
I am confused about this statement about waterWhich of the following is TRUE regarding water only covalent bonds are broken when
1. 1 answer
2. asked by Andy
3. 630 views
The element niobium has bcc packing with a body-centered cubic unit cell. The volume of the unit cell is 3.59 x 10-26 L.
1. 1 answer
2. asked by Anon
3. 626 views
Locke says, "nor is it at all material to say that this same and this distinct consciousness, in the cases above mentioned, is
1. 1 answer
2. asked by S
3. 625 views
35 divided by [9 plus (9-7) minus 4]plus 10 times 3..can someone please explain how to do this problem math - Evan, Tuesday, May
1. 0 answers
2. asked by danny
3. 622 views
I posted this response under your answer but I thought I would repeat it here just in case you didn't look back at the other
1. 2 answers
2. asked by Shelley
3. 621 views
Okay we have this problem: 50 kg mass traveling at 10 m/s strikes a 100kg mass at rest find the final velocity each....if...1.
1. 1 answer
2. asked by Mary
3. 621 views
Given 2secant^2 (theta) + 1 = 5 secant (theta), solve for (theta), to the nearest degree, in the interval 0 degrees is greater
1. 1 answer
2. asked by Courtney
3. 618 views
35 divided by [9 plus (9-7) minus 4]plus 10 times 3..can someone please explain how to do this problem math - Evan, Tuesday, May
1. 2 answers
2. asked by danny
3. 615 views
Dr bob can you help with my last question for tonights home work pleaseA gas mixture consists of equal parts of
1. 2 answers
2. asked by Andy
3. 608 views
Hi..Can you balance these 4 chemical reactions for me please:1) Cu + 2Ag NO3 2) Zn + Al(NO3)3 3) Cu + ZnSO4 4) Ca + 2HCI Also
1. 1 answer
2. asked by Stacey
3. 605 views

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