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Questions Asked on April 3, 2014

The lifetime of a type-A bulb is exponentially distributed with parameter λ. The lifetime of a type-B bulb is exponentially
1. 10 answers
2. asked by A
3. 11,703 views
What percentage of the total students prefer biking as their method of transportation?
1. 0 answers
2. asked by MsBadBut
3. 10,442 views
The random variable X is uniformly distributed over the interval [θ,2θ]. The parameter θ is unknown and is modeled as the
1. 11 answers
2. asked by A
3. 9,002 views
We have k coins. The probability of Heads is the same for each coin and is the realized value q of a random variable Q that is
1. 8 answers
2. asked by A
3. 8,263 views
I have to chose whether or not the sentence needs preposition a or no a (sin a)1) ¿Conoces__ alguien que organice fiestas de
1. 4 answers
2. asked by Tina
3. 6,927 views
(NH4)2S is a strong electrolyte. Determine the concentration of each of the individual ions in a 0.200 M (NH4)2S solution.[NH4]
1. 3 answers
2. asked by Natalie
3. 5,901 views
Based upon the intermolecular forces present, rank the following substances according to the expected boiling point for the
1. 1 answer
2. asked by sara
3. 5,862 views
Let X=U+W with E[U]=m, var(U)=v, E[W]=0, and var(W)=h. Assume that U and W are independent.The LLMS estimator of U based on X is
1. 3 answers
2. asked by A
3. 5,677 views
"Write equations for the half-reactions that occur at the anode and cathode for the electrolysis of the following aqueous
1. 1 answer
2. asked by Kate
3. 5,102 views
A rowing team rowed 50 miles while going with the current in the same amount of time as it took to row 25 miles going against
1. 2 answers
2. asked by Brice
3. 4,502 views
1. Which of the following statements best defines tides?when waves get bigger because of an approaching storm the rise and fall
1. 19 answers
2. asked by Helena
3. 3,714 views
Alice is going on a picnic and is aware that it will be easier to carry the picnic basket if it balances at the center where the
1. 2 answers
2. asked by Germane
3. 3,468 views
Consider a 0.10 M solution of a weak polyprotic acid (H2A) with the possible values of Ka1 and Ka2 given below, calculate the
1. 1 answer
2. asked by Chay
3. 3,145 views
Which would produce a greater number of Calories- a pound of lean meat or a pound of butter? Why is it so?
1. 13 answers
2. asked by Bob
3. 3,112 views
A graph of wavelength vs. 1/frequency should be a straight line. What are it's slope and y-intercept?I'm not given any graphs or
1. 1 answer
2. asked by Eiban
3. 2,942 views
The entrance hall to the Louvre Museumin Paris is a glass and metal pyramid with a surface area of approximately 1980 square on
1. 1 answer
2. asked by Bob
3. 2,744 views
Andrew borrows $79,500 for 5 months on 6.30% interest rate in his saving account. Calculate the simple interest?
1. 11 answers
2. asked by Anonymous
3. 2,532 views
A current of 5.41 A is pass through a Ni(NO3)2 solution. How long (in hours) would this current have to be applied to plate out
1. 2 answers
2. asked by At Least I Am Persistent.
3. 2,410 views
a rectangular painting including the frame is 28 inches wide and 24 inches tall.the opening inside the frame is 24 inches wide
1. 3 answers
2. asked by Anonymous
3. 2,361 views
Sodium metal adopts a body-centered cubic structure with a density of 0.97g/cm3. A. Use this information and Avogadro's number
1. 1 answer
2. asked by Liz
3. 2,313 views
grade 7 students were surveyed to determine how many hours per day they spent on various activities. The results are shown in
1. 3 answers
2. asked by dakota
3. 2,238 views
1. which action was NOT an example of telling against society in the 1920s in the united states?a. going to speakeasies b.
1. 12 answers
2. asked by what
3. 1,992 views
Doing some homework, are my answers right?HCN= Polar HCOOH= Polar H2CCCH2= Nonpolar Out of the following elements: Na, H, and Au
1. 1 answer
2. asked by Matthew
3. 1,929 views
Some people believe in the force (yes, like in Star Wars). To test if young Anakin Skywalker has the force with him, he is told
1. 1 answer
2. asked by helen
3. 1,882 views
Let N be a geometric r.v. with mean 1/p; let A1,A2,… be a sequence of i.i.d. random variables, all independent of N, with mean
1. 5 answers
2. asked by A
3. 1,755 views
Sulfur trioxide is formed by the catalytic oxidation of sulfur dioxide:2SO2(g)+O2(g)→2SO3(g) If ΔH∘= -197.8kJ/mol and
1. 3 answers
2. asked by Emily
3. 1,670 views
A jogger with a mass of 66.0 kg reaches the top of a staircase in 44.0 s. If the distance from the bottom to the top of the
1. 9 answers
2. asked by eli
3. 1,627 views
the lattice energy for MgCl2 is -2326 kj/mol, which is much higher than that for NaCl which has a lattice energy of -786 kj/mol.
1. 3 answers
2. asked by Mai
3. 1,604 views
What is the purpose of prewriting in the writing process?A) to help polish your writing B) to find details to complete
1. 5 answers
2. asked by Mike
3. 1,506 views
what are the sources of error in preparing ester lab?
1. 1 answer
2. asked by maggi
3. 1,469 views
what is the oxidation half-reaction in the following chemical reaction? fe(s) + 3 agno3 -> ag + fe(no3)3
1. 2 answers
2. asked by Anonymous
3. 1,453 views
An ideal gas for which Cv = 3R/2 is the working substance of a Carnot engine. During the isothermal expansion, the volume
1. 1 answer
2. asked by juniah
3. 1,451 views
6/16 of children have freckles. of those 1/12 have red hair. how many have red hair and freckles?
1. 2 answers
2. asked by sky
3. 1,448 views
Calculate the water pressure at the base of the Hoover Dam. The depth of water behind the dam is 220m m .Express your answer to
1. 24 answers
2. asked by Anonymous
3. 1,430 views
a circle of radius 1 is inscribed in a square. A smaller circle is tangent to two sides of the square and the first circle.
1. 2 answers
2. asked by praddy
3. 1,387 views
A 2.1-kg brick is placed gently upon a 2.9-kg cart originally moving with a speed of 26 cm/s.Determine the post-collision speed
1. 1 answer
2. asked by bizzle
3. 1,296 views
Rank the following from most to least for the percentage of its volume above the water line:A. Basketball floating in saltwater
1. 1 answer
2. asked by Anonymous
3. 1,274 views
Use the diagram to find the surface area of a triangular prism. Find the area of the two triangular faces. Then find the area of
1. 1 answer
2. asked by Jenny 2
3. 1,253 views
find the 76th term for these numbers -2, 2, 6, 10, 14
1. 2 answers
2. asked by Stacia
3. 1,247 views
. A catapult launches a boulder with an upwark velocity pf 184 feet per second. the heigh of the boulder in feet after t seconds
1. 2 answers
2. asked by Alex
3. 1,247 views
A common laboratory preparation of hydrogen on a small scale uses the reaction of zinc with hydrochloric acid. Zinc chloride is
1. 1 answer
2. asked by Anonymous
3. 1,244 views
Caleb builds a particle detector and uses it to measure radiation from a remote star. On any given day, the number of particles,
1. 5 answers
2. asked by A
3. 1,200 views
calculate the pH of the solution when 100mL of .05M KF is mixed with 200mL of .05M HF; Ka (HF) = 3.467x10^-4. I tried to use the
1. 7 answers
2. asked by Jamie
3. 1,195 views
Determine each verb and predicate noun or predicate adjective1. Some people on the steamers get wet from the falls' foam and
1. 1 answer
2. asked by cee
3. 1,193 views
If a 6-sided number cube is rolled twice, what is the probability that a 1 is rolled both times?
1. 2 answers
2. asked by Anonymous
3. 1,172 views
I'm stuck on this problem and only have 2 attempts left.The Ksp of Zn(OH)2 is 1.8x10^-14. Find Ecell for the following
1. 1 answer
2. asked by Jamie
3. 1,155 views
Write a balanced chemical equation and state the reaction type for each of the following reactions:a.) nitrogen gas reacts with
1. 2 answers
2. asked by Anonymous
3. 1,147 views
Parallel lines are on a ?-dimensiona; surface called a _____.
1. 2 answers
2. asked by Anonymous
3. 1,131 views
In the sketch, the small hydraulic piston has a diameter of 2.5cm cm . The large piston has a diameter of 6.4cm cm .For each
1. 1 answer
2. asked by Phil
3. 1,131 views
why it is necessary to apply sunscreen to your skin and wear sunglasses when you want sunbathe on the beach?
1. 1 answer
2. asked by comfort mohlola
3. 1,131 views
Find its density.Express your answer to two significant figures and include the appropriate units How does this compare with the
1. 1 answer
2. asked by Phil
3. 1,098 views
A rock is thrown vertically upward with a speed of 14.0m/s from the roof of a building that is 70.0m above the ground. Assume
1. 1 answer
2. asked by Anonymous
3. 1,096 views
Two children hang by their hands from the same tree branch. The branch is straight, and grows out from the tree trunk at an
1. 0 answers
2. asked by jason
3. 1,091 views
To solve the problem of a polluted stream a scientist traced where the pollution came from. She determined that the pollution
1. 1 answer
2. asked by Anonymous
3. 1,084 views
Imagine that you are the scientist who discovered cells. If you were to give a speech to a group of fellow scientists, what key
1. 3 answers
2. asked by pj tilly
3. 1,061 views
a farmer wishes to fence off a rectangular plot of land, using an existing wall as one of the sides . the total are enclosed
1. 1 answer
2. asked by tttt
3. 1,055 views
Im not sure these are right.I Tryed my best :D.1.A 2.B 3.C 4.A or B 5.B 1.“Along the southern coast of Brazil the central
1. 4 answers
2. asked by matt
3. 1,055 views
What is the purpose of a response-to-literature essay?A) to entertain B) to persuade C) to analyze D) to compare and contrast
1. 1 answer
2. asked by Mike
3. 1,048 views
A prototype rocket burns 159 gallons of liquid hydrogen fuel each sound during a regular launch. Make a table that shows how
1. 2 answers
2. asked by Anonymous
3. 1,027 views
Since, in general, the longer a car is owned the more miles it travels one can say there is ______ between age of a car and
1. 2 answers
2. asked by Sarah
3. 968 views
The voltage generated by the zinc concentration cell (described by,Zn(s)|Zn2 (aq, 0.100 M)||Zn2 (aq, ? M)|Zn(s)) is 27.0 mV at
1. 2 answers
2. asked by Chem. Student
3. 968 views
Write the balanced chemical equation for each of the following. (Use the lowest possible coefficients. Include states-of-matter
1. 1 answer
2. asked by Grace
3. 965 views
What would the highest and lowest points look like on a topographic map?
1. 6 answers
2. asked by Anonymous
3. 963 views
A catapult launches a boulder with an upwark velocity pf 184 feet per second. the heigh of the boulder in feet after t seconds
1. 4 answers
2. asked by Alex
3. 961 views
Fill in the blanks with the chosen words.words: after and till because as but for if when since so though unless until while or
1. 5 answers
2. asked by Mohamed
3. 951 views
If a t-shirt goes on sale for 25% off, how much is the discount on a T-shirt that originally costs $36.00?
1. 3 answers
2. asked by Anonymous
3. 940 views
a circle of radius 1 is inscribed in a square. A smaller circle is tangent to two sides of the square and the first circle.
1. 1 answer
2. asked by praddy
3. 899 views
Jim has grades of 84, 65, and 76 on three math tests. What grade must he obtain on the next test to have an average of exactly
1. 2 answers
2. asked by Jackie
3. 890 views
In circle O, chord AB is 9 inches from the center. The diameter of the circle exceeds the length of AB by 2 inches. Find the
1. 1 answer
2. asked by Jonathon
3. 886 views
Scott invests $1,500, at 12% interest, compounded quarterly for 8 years. Use Table 11-1 to calculate the compound amount for his
1. 1 answer
2. asked by tota
3. 878 views
To solve the problem of a polluted stream a scientist traced where the pollution came from. She determined that the pollution
1. 2 answers
2. asked by Anonymous
3. 867 views
PLEASE HELP GUYSAn ideal gas for which Cv = 3R/2 is the working substance of a Carnot engine. During the isothermal expansion,
1. 0 answers
2. asked by juniah
3. 842 views
This is online homework that I have done but I am having trouble with 3, 5, 6, 7, and 8. For 3 i put l, for 5d, for 6 b and for
1. 2 answers
2. asked by Tina
3. 827 views
Multiple-Concept Example 10 provides one model for solving this type of problem. Two wheels have the same mass and radius of 5.0
1. 1 answer
2. asked by jason
3. 802 views
What career is more worthy to go to college for and save the most money?A.) Vet Tech B.) Preschool/Kindergarden Teacher C.)
1. 2 answers
2. asked by Molly
3. 795 views
The wheels, axle, and handles of a wheelbarrow weigh W = 56.2 N. The load chamber and its contents weigh WL = 584 N. The drawing
1. 1 answer
2. asked by jason
3. 790 views
what's the surface area of a right trapezoidal prism
1. 1 answer
2. asked by Anonymous
3. 788 views
explain why the mohawks and the other first nations would choose to become allies with europeans, even though they knew that all
1. 1 answer
2. asked by kim
3. 785 views
An experiment was conducted to determine the abrasion resistance of a new type of automobile paint. Twelve different strips of
1. 1 answer
2. asked by Bre
3. 783 views
1.B2.C 3.A 4.B 5.D 1.“Along the southern coast of Brazil the central plateau descends in high, steep escarpments. It towers
1. 3 answers
2. asked by matt
3. 783 views
60 kg cheetah reaches a speed of 30 m/s when chasing its prey
1. 1 answer
2. asked by chris
3. 769 views
Find the linking verb and predicate noun or predicate adjective.1. At night, wide beams of colorful lights look beautiful on the
1. 1 answer
2. asked by cee
3. 763 views
A dike in Holland springs a leak through a hole of area 0.60cm 2 cm^2 at a depth of 1.4m m below the water surface.How much
1. 0 answers
2. asked by Phil
3. 755 views
How many years would it take a worker making $40 per hour to earn $8,000,000, assuming she works 240 8-hour days per year?
1. 1 answer
2. asked by Anonymous
3. 755 views
Farmer taylor wants to fence a rectangular area of 1800 square feet and divided into 3 parts by fencing parallel to the shorter
1. 1 answer
2. asked by JESSICA
3. 754 views
A baby whale gets lost from his mother while swimming through a large underwater canyon. Frantically the baby whale yells for
1. 1 answer
2. asked by Help please
3. 751 views
A particular person’s lower leg is 59 cm long and has a mass of 8.0 kg. If allowed to swing freely, with what time period
1. 2 answers
2. asked by Anonymous
3. 747 views
à manufacturer of computers designed to aid social scientists in analyzing research data clams that his computers are
1. 1 answer
2. asked by Ronaldo
3. 743 views
The low temperature for 6 consecutive days in a Montana city were 9°,3°,4°,16°,11°,and 5°. What would the low temperature
1. 1 answer
2. asked by Angel
3. 743 views
Assume the returns from holding small-company stocks are normally distributed. Also assume the average annual return for holding
1. 0 answers
2. asked by Alec
3. 733 views
Please help me solve and find the excluded values for this problem. Also please show me the work for this problem I want to
1. 1 answer
2. asked by Omar
3. 733 views
Brianna invests $3,500, at 12% interest, compounded quarterly for 1 year. Manually calculate the compound interest for this
1. 1 answer
2. asked by tota
3. 732 views
Write the balanced chemical equation for each of the following. (Use the lowest possible coefficients. Include states-of-matter
1. 1 answer
2. asked by Grace
3. 728 views
is there some rule on weak and strong electrolytes and the amount of concentration requiered for each? for example are weak
1. 1 answer
2. asked by Sally
3. 716 views
Determine each verb and predicate noun or predicate adjective1.Each year about ten million people visit Niagara Falls. 2.Many
1. 2 answers
2. asked by cee
3. 713 views
how do varieties of informative and positive messages adapt the basic pattern?
1. 1 answer
2. asked by Maci
3. 700 views
A mixture of gases is prepared from 76.9 g of O2 and 16.0 g of H2. After the reaction of O2 and H2 is complete, what is the
1. 1 answer
2. asked by Anonymous
3. 699 views
For the following write the chemical formulas for the reactants and predict the most likely reaction type , then write balanced
1. 6 answers
2. asked by Anonymous
3. 696 views
What is the energy of a single photon with a frequency of 7 x 10^8 Hz. (hint Planck's constant = 6.626 x 10^-34)To type an
1. 1 answer
2. asked by Anonymous
3. 695 views
Calculate the water pressure at the bottom of the 50-m {\rm m}-high water tower shown in the photo.Express your answer to two
1. 0 answers
2. asked by Anonymous
3. 691 views

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