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The linear absorption coefficient for 0.05 nm x-rays in lead and in iron are respectively, 5.8x10(4) /m and 1.1x10 (4) /m. How
1. 0 answers
2. 528 views
X-rays with an energy of 300 keV undergo Compton scattering from a target.If the scattered x-ray are directed at 30 degrees
1. 1 answer
2. 1,261 views
The temperature of your skin is approximately 35C degrees. What is the wavelength at which the peak occurs in the radiation
1. 0 answers
2. 703 views
find the nth derivative of 2/(x+1)what i have so far is (?)(x+1)^(-n-1) i having trouble with finding the first number without
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2. 462 views
find the nth derivative of 2/(x+1)
1. 1 answer
2. 549 views
find the nth derivative of 2/(x+1)
1. 2 answers
2. 1,006 views
how do you make a skit on the word vexation?
1. 2 answers
2. 489 views
a compound contains 63.15% Carbon, 5.30% hydrogen, 31.55% oxygen. Its molar mass is 152.14 g/mol. determine the empirical and
1. 0 answers
2. 1,284 views
how do you write seven names for 8.Using only numbers less than 10,and using at least three different opperations in each
1. 14 answers
2. 1,477 views
The Pirerras are planning to go to Europe 5 yr from now and have agreed to set aside $190/month for their trip. If they deposit
1. 0 answers
2. 1,352 views
The Johnsons have accumulated a nest egg of $19,000 that they intend to use as a down payment toward the purchase of a new
1. 1 answer
2. 827 views
given D is the midpoint of line CEE is the midpoint of line df. prove line cd is congruent to line ef give me reasons
1. 1 answer
2. 495 views
given xz=72, xy=5x+3 and yz=8x-9. is Y the midpoint of ling xz?explain answer.
1. 1 answer
2. 422 views
identify the properties1.) if a=b and c=d then ac=bd 2.) c(d+e) = cd+ce 3.) if c=d and d=e ten c=e 4.) if x=y and p=q then
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2. 900 views
identify the property x=x
1. 1 answer
2. 314 views
A meteorite has landed at UOIT! Chemical analysis shows that it contains 1gram of potassium and 1E-5 grams of argon, assumed to
1. 0 answers
2. 1,174 views
An investigator receives Co-60 (5.27 year half life) for use in a research study.Unfortunately the Co-60 is contaminated with
1. 2 answers
2. 585 views
A researcher wishes to extract140 La from 140 Ba. She obtains a 1000 MBq virgin Ba-140 sample and must wait until the maximum
1. 1 answer
2. 677 views
What data management issues may be encountered by Amazon?
1. 1 answer
2. 416 views
i need a catch phrase for an element project subject "silver"
1. 1 answer
2. 380 views
what is the effect on the ecosystem if thier is a increase in the hawk population
1. 1 answer
2. 719 views
Why is it important for a general manager to be knowledgeable about information technology?
1. 1 answer
2. 942 views
What are the adverbs in this sentence?Grace watched him rather disgustedly.
1. 2 answers
2. 644 views
The solubility of nickel (II) carbonate at 25 degrees celsius is 0.042 g/L.Calculate Ksp for nickel (II) carbonate. thanks
1. 1 answer
2. 1,675 views
A saturated solution of PbSO4 has [Pb^2+] = 1.35E-4M. What is the concentration of SO4^2-?thanks
1. 1 answer
2. 902 views
Calculate the pH of 1.28×10−3 M KOH.thanks.
1. 3 answers
2. 1,976 views
For the following strong base solution 0.40 M NaOH, determine [OH-] and [H30+].thanks
1. 1 answer
2. 379 views
Lakes that have been acidified by acid rain can be neutralized by liming, the addition of limestone (CaCO3).How much limestone
1. 2 answers
2. 2,526 views
Imagine you want to make a 2cm. by 2.5cm. What percent should you use?
1. 1 answer
2. 345 views
need help figure out how to do these problem:1)Calculate the pH of this solution: 1.55 X 10^-2 M HBr 2)Determine the pH of this
1. 1 answer
2. 479 views
how does an ice cube melt
1. 0 answers
2. 365 views
What is the fundamental theorem of algebra for x^6-64?
1. 1 answer
2. 468 views
why is objectivity important to forensic scientists
1. 2 answers
2. 424 views
i need a thesis for a report about the problems in cuba, please help me!!!thanks sooo much!
1. 1 answer
2. 422 views
what are some economic, social, political, and other problems in Cuba did historical events lead to these problems? and what was
1. 6 answers
2. 783 views
What is the minimum work needed to push a 900 kg car 890 m up along a 7.5 degree incline?(a) ignore friction (b) Assume the
1. 1 answer
2. 700 views
The following reaction consumes 2.15 kg of CO(g): CO(g) + H2O(g) --> CO2(g) + H2(g) How many total liters of gas are formed if
1. 1 answer
2. 664 views
The following reaction consumes 2.15 kg of Co(g): Co(g) + H2O(g) --> CO2(g) + H2(g) How many total liters of gas are formed if
1. 3 answers
2. 1,014 views
The following reaction is carried out as a source of hydrogen gas in the laboratory:Zn(s) + 2HCl(aq) ---> ZnCl2(aq) + H2(g) If
1. 1 answer
2. 656 views
The following reaction is carried out as a source of hydrogen gas in the laboratory:Zn(s) + 2HCl(aq) ---> ZnCl2(aq) + H2(g) If
1. 1 answer
2. 620 views
thanks for helping me, just saying
1. 0 answers
2. 302 views
i need help writing a thesis statement for an essay. the topic is this:use an example from romeo and juliet, write and essay
1. 0 answers
2. 735 views
so, i posted an essay question like 10 minutes ago, it's under anonomys though cause i forgot to put my name, anyway, i started
1. 6 answers
2. 719 views
A box of mass 10kg starts from rest and slide down a plane angled at 45 degrees to the horizontal. the box slides 2m down the
1. 0 answers
2. 879 views
x-sqrt(x)-2 = 0how would i start this problem?
1. 1 answer
2. 354 views
5 mL of a liquid have a mass of 1 og what is the density
1. 1 answer
2. 385 views
The propane fuel(C3H8) used in gas barbecues burns according to the following equation:C3H8(g) + 5O2(g) --> 3CO2(g) + 4H2O(g)
1. 1 answer
2. 1,745 views
10 simple sentences about my pet(dog)
1. 1 answer
2. 428 views
A solution contains 0.245 of dissolved lead (lead ion or Pb2+.)How many moles of sodium chloride must be added to the solution
1. 2 answers
2. 877 views
Let P be the point (p,q) and L the line y = m x + b. It is not necessary, but if you like you may assume that P lies below the
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2. 872 views
hi. please help. i need to do a presentation for weathering and erosion and i am not sure what the graphical representation
1. 1 answer
2. 501 views
if I buy 3 large sandwich wraps to serve at a picnic and 9 people will be at the picnic, show 3 different ways to cut the
1. 2 answers
2. 573 views
if I buy 3 large sandwich wraps to serve at a picnic and 9 people will be at the picnic, show 3 different ways to cut the
1. 4 answers
2. 744 views
why is the civil war fought in the USA?
1. 1 answer
2. 977 views
This is also another problem that I'm having trouble on.A motorboat can maintain a constant speed of 16 miles per hour relative
1. 1 answer
2. 567 views
A metra commuter train leaves Union Station in Chicago at 12 noon. Twp hours later an Amtrak train leaves on the same track,
1. 3 answers
2. 731 views
Assume that there are 6 unfilled roles: 1 male and 5 female. There are 5 men and 7 women, including Ann, auditioning for a part
1. 1 answer
2. 1,510 views
The expression 9a + 6s is the cost for a adults and s students to see a musical performance.a. Find the total cost for three
1. 3 answers
2. 1,047 views
If the same amount of heat is supplied to sample of 10.0g each aluminum, iron,and copper all at 15 degrees celsius which sample
1. 2 answers
2. 4,090 views
16-12/4
1. 1 answer
2. 232 views
Hi. I have an answer for this question however, not sure. In a certain lottery, 4 numbers between 1 and 10 inclusive are drawn.
1. 1 answer
2. 751 views
Hi. I am having some issues with this one. Give the equation of the line that is perpendicular to the line y=x+6 and passes
1. 2 answers
2. 404 views
Determine the molar mass of each of the following gases?A. 2.90 g of gas that occupies 0.500 L at 0 C and 1.00 atm (STP) B. 1.48
1. 3 answers
2. 1,692 views
A scuba diver 40ft below the ocean surface inhales 50.0 ml of compressed air mixture in a scuba tank at a pressure of 3.00 atm.
1. 3 answers
2. 3,066 views
An air bubble has a volume of 0.500 L at 18 C. If the pressure does not change, what is the volume, in liters, at each of the
1. 2 answers
2. 2,590 views
if the sign weigh 240 and the angle the rope makes with the bar is 55 degree,how much is the tension is the rope?
1. 1 answer
2. 397 views
Can someone help me think of a sentence to help me remember the letters D,K, P, C, O, F, G, S, in that order. I am tryin to
1. 2 answers
2. 336 views
I had to measure students in my class. I measured their hieghts in inchs but converted the numbers to centimeters and meters.
1. 1 answer
2. 457 views
I had to measure students in my class. I measured their hieghts in inchs but converted the numbers to centimeters and meters.
1. 1 answer
2. 462 views
Hi, Damon helped me with this problem earlier, but im confused on how he got the answer. I really don't understand the math or
1. 1 answer
2. 563 views
and my last problem i need help with. i don't know how to even begin settin the problem up to figure out the answer.E coli, a
1. 3 answers
2. 526 views
say you have a level container that is 10cm by 10cm by 10cm. full of water, it would weight one kg. but say you can put no more
1. 1 answer
2. 549 views
Can you please direct me in the right way to finding the answer to these problem. I have been out of school since 1995 and have
1. 1 answer
2. 597 views
solve 3x^2+xy+4y^2-9=0 for x in terms of y
1. 1 answer
2. 339 views
Solve by completing the square:x^2=5x+2
1. 1 answer
2. 364 views
what is " like a little sleeping bag"? how do these words help you visualize?
1. 2 answers
2. 417 views
a circle in inscribed in a rectangle. The rectangle measures 10 inches by four inches. Find the area of the shaded part
1. 1 answer
2. 576 views
I am trying to solve this question but I am lost can anyone help me plsSuppose your supervisor asks you to use the
1. 3 answers
2. 526 views
A 2.7 kg block, starting from rest, slides down a ramp with friction. The top of the ramp is 1.5 m above the ground; the bottom
1. 4 answers
2. 915 views
identify the oxidizing agent and the reducing agent in the following reaction:C + 2Clsub2 > CClsub4
1. 0 answers
2. 496 views
what nation became an imperial power in east asia
1. 1 answer
2. 475 views
the customer rolls a pair of numbercubes. if the product is 24, julie and brandonn get $40. otherwise, they get $10.
1. 1 answer
2. 365 views
Is it a good idea to open American fast food restaurants in Disney parks overseas selling the same kind of food sold in U.S.
1. 1 answer
2. 549 views
Ethically, would it be fair to pay U.S. employees who are relocated overseas a different wage than local employees receive?
1. 4 answers
2. 588 views
Explain how socio-cultural differences create problems for Walt Disney in opening parks overseas
1. 0 answers
2. 463 views
my daughter in 2nd grade need help with her music homework. her rhythms are ta, too, four, and titi. The words are welcome,
1. 0 answers
2. 621 views
Which economic system is the best solution to handling a crisis of epic proportion?
1. 1 answer
2. 491 views
i need helpwhile mercury is very useful in barometers, mercury vapor is toxic. given that mercury has Hvapp=56.9kj/mol and its
1. 1 answer
2. 1,410 views
i need help
1. 1 answer
2. 243 views
Calculate the work done when 70.0 g of tin are dissolved in excess acid at 1.00 atm and 29°C. Assume ideal gas behavior.Sn(s) +
1. 0 answers
2. 913 views
Write the converse of this statement.If 2 's are supplementary, then they are not equal. Converse:
1. 1 answer
2. 1,315 views
if some light is absorbed by an electron, what happens to the electron?
1. 1 answer
2. 327 views
What can you conclude about elasticity of demand for rail service:Rail service has always been a losing proposition in Canada.
1. 1 answer
2. 523 views
0.9x + 9 greater than 1.3x-6 please solve
1. 2 answers
2. 327 views
solving this equation...0.9x + 9 ¡Ü 1.3x-6
1. 2 answers
2. 343 views
Write the following statement in if - then form.David will sing provided Eric plays the piano. i don't get get this
1. 2 answers
2. 1,096 views
The joined cells, now called a blastocyst, move toward and attach to the mother's uterine lining. How long does this take?
1. 0 answers
2. 842 views
I need to write a sentence using the words: fingernails,trees,when,fill,for,homework.The words HAVE to stay in th same order,and
1. 2 answers
2. 1,333 views
What has more mass a elephant , mouse or jumbo jet?
1. 0 answers
2. 471 views
if a woman is a carrier for a disease (Hh) and a man has a 50% chance of being a carrier for that disease, what is the
1. 0 answers
2. 468 views

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