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Questions Asked on November 9, 2011

Classify the possible combinations of signs for a reaction's ∆H and ∆S values by the resulting spontaneity.A) Spontaneous as
1. 13 answers
2. asked by Jessica
3. 26,349 views
When catching a baseball, a catcher's glove moves by 12 cm along the line of motion of the ball. If the baseball exerts a force
1. 2 answers
2. asked by mike
3. 7,527 views
An unprepared student makes random guesses for the ten true-false questions on a quiz. Find the probability that there is at
1. 2 answers
2. asked by HM
3. 6,457 views
Consider these changes. (a) Hg(l)->Hg(g) (b) 3O2(g)->2O3(g) (c) CuSo4*5H2O(s)->CuSO4(s)+5H2O(g) (d) H2(g)+F2(g)->2HF(g) At
1. 1 answer
2. asked by Anonymous
3. 6,187 views
Describe how to draw a line that passes through the origin and has a slope of 3/5.
1. 4 answers
2. asked by Jane
3. 5,019 views
A batch consists of 12 defective coils and 88 good ones. find the probability of getting two good coils when two coils are
1. 7 answers
2. asked by HM
3. 4,709 views
Help me please.. Explain also :(1. E is inversely proportional to Z and Z = 4 when E = 6. 2. P varies inversely as Q and Q = 2/3
1. 6 answers
2. asked by Elmo Schnittka
3. 4,594 views
22. Your class hopes to collect at least 325 cans of food for the annual food drive. There were 135 cans donated the first week
1. 11 answers
2. asked by ooooo
3. 4,427 views
which solution has the lower pH?a)0.1 M HCL or 0.1 M HC2H3O2? b)0.1 M NaOH or 0.1 M NH3? c)0.1 M Na2CO3 or 0.1 M NaCl?
1. 2 answers
2. asked by denis
3. 3,953 views
Jacie is considering a job that offers a monthly starting salary of $3000 and guarantees her a monthly raise of$180 during her
1. 3 answers
2. asked by andrew
3. 3,947 views
Strong base is dissolved in 675 ml of 0.200 m weak acid (ka=3.25x10^-5) to make a buffer with a ph of 3.95. Assume that the
1. 3 answers
2. asked by Alex
3. 3,600 views
Why Olympia selected to hold at the ancient Olympic Games?
1. 4 answers
2. asked by Emily
3. 3,495 views
From a group of 3 men and 4 women, a delegation of 2 is selected at random. What is the expected number of men in the
1. 1 answer
2. asked by HM
3. 3,356 views
What instrument are used to measure mass?
1. 30 answers
2. asked by Laruen
3. 3,085 views
What are the reasons for the olympic games to be largest of all sporting events?
1. 7 answers
2. asked by Emily
3. 3,037 views
An equilateral triangle has sides that measure 5x+3 units and 7x-5 units. What is the perimeter of the triangle?
1. 2 answers
2. asked by Julie
3. 3,022 views
Suppose a planet is discovered orbiting a distant star with 13 times the mass of the Earth and 1/13 its radius. How does the
1. 1 answer
2. asked by Cooper
3. 2,853 views
If an atom gains energy, is it in a more stable or unstable state?
1. 1 answer
2. asked by Andres
3. 2,848 views
An aqueous solution of potassium hydroxide is mixed with an (aq) of magnesium chloride and you get a clumpy white precipitate
1. 1 answer
2. asked by Susan
3. 2,845 views
Find the area of the region bounded by the parabola y = 4x^2, the tangent line to this parabola at (4, 64), and the x-axis.
1. 1 answer
2. asked by Ryan
3. 2,786 views
two tractors pull against a 1000 kg log. if the angle of the tractors chains in relation to each other is 18 degrees and each
1. 1 answer
2. asked by payton
3. 2,756 views
what is the resistance if a circuit with 120v and 5Aits 24 how do i make a diagram of a circuit based on the info above
1. 1 answer
2. asked by Adam
3. 2,615 views
Find the number b such that the line y = b divides the region bounded by the curves y = 16x2 and y = 9 into two regions with
1. 1 answer
2. asked by Courtney
3. 2,614 views
Consider the following reaction in a closed reaction flask. If 0.600 atm of gas A is allowed to react with 1.20 atm of gas B and
1. 1 answer
2. asked by Celeste
3. 2,603 views
Find the three geometric means between -2 and -32. Show the work that leads to your answer
1. 2 answers
2. asked by Jazmine
3. 2,460 views
The widths (in meters) of a kidney-shaped swimming pool were measured at 3-meter intervals as indicated in the figure. Use the
1. 1 answer
2. asked by Ethan
3. 2,460 views
A communications satellite with a mass of 450 kg is in a circular orbit about the Earth. The radius of the orbit is 2.9×10^4 km
1. 1 answer
2. asked by Cooper
3. 2,358 views
Gloria talked on her cell phone for 320 minutes the first month, 243 minutes the second month and 489 minutes the third
1. 11 answers
2. asked by phillip
3. 2,321 views
Point A is the incenter of (triangle) PQR. Find each measure.ARU AU QPK
1. 1 answer
2. asked by Jordan
3. 2,212 views
The following reaction is a single-step, bimolecular reaction:CH3Br + NaOH ---> CH3OH + NaBr When the concentrations of CH3Br
1. 3 answers
2. asked by Bryan
3. 2,145 views
Suppose you increase your walking speed from 1m/s to 3m/s in a period of 1s. What is your acceleration?a:2m/s b:5m/s c:4m/s
1. 2 answers
2. asked by ashley
3. 2,080 views
Wind and the surface ocean currents it drives are both strongly influenced by the Fill in the Blank 01, which makes them curve
1. 4 answers
2. asked by Loi
3. 2,000 views
A horizontal force of 150 N is used to push a 43.5 kg packing crate a distance of 5.30 m on a rough horizontal surface. If the
1. 1 answer
2. asked by Raqual
3. 1,947 views
there are 24 students in a science class. Mr. Sato will give each pair of students 3 magnets. So far, Mr. Sato has given 9 pairs
1. 8 answers
2. asked by jessica
3. 1,916 views
What is the oxidizing agent in the following reaction?Cl2 (g) + 2Na+ (aq) + 2Br- (aq) --> 2Na+ (aq) + 2Cl- (aq) + Br2 (l)
1. 1 answer
2. asked by mary
3. 1,787 views
To the nearest degree, determine the measure of <X for each value of tan X if the tan X = 0.25
1. 1 answer
2. asked by dina
3. 1,746 views
A bag contains 10 red chips and 12 blue chips. Two chips are selected randomly without replacement from the bag.What is the
1. 1 answer
2. asked by HM
3. 1,732 views
If a vector that is 1cm long represents a velocity of 10km/h, what velocity does a vector 2cm long drawn to the same scale
1. 1 answer
2. asked by Paulina
3. 1,637 views
learning is generally considered a lasting change in behavior based ona) practice and experience b) practice and challenge c)
1. 2 answers
2. asked by Teweety
3. 1,593 views
A piece of paper is 280 millimeters long and 200 millimeters wide. You want to draw a grid on the paper so that there is a whole
1. 3 answers
2. asked by unknown
3. 1,564 views
A flywheel with a diameter of 2.45 m is rotating at an angular speed of 74.1 rev/min. (a) What is the angular speed of the
1. 1 answer
2. asked by kyle
3. 1,548 views
Find the probability of correctly answering the first 4 questions on a multiple choice test if random guesses are made and each
1. 3 answers
2. asked by HM
3. 1,522 views
A box contains 12 lights bulbs, of which 4 are defective. All bulbs look alike and have equal chance of being chosen. 3 light
1. 1 answer
2. asked by Yvonne
3. 1,502 views
Consider f(x)=200+8x^3+x^4. find the intervals on which function is increasing or decreasing, the local max and minimu values,
1. 1 answer
2. asked by Ashley
3. 1,487 views
about 11% of the population is nervous around strangers. if 2 people are randomly selected, what is the probability that both
1. 1 answer
2. asked by kerri
3. 1,481 views
Calculate ∆H˚ for the following reaction using the given bond dissociation energies.CH4 (g) + 2O2 (g) --> CO2 (g) + 2H2O (g)
1. 1 answer
2. asked by Raj
3. 1,438 views
1)What must be the orbital speed of a satellite in a circular orbit 740 above the surface of the earth?2)What is the period of
1. 2 answers
2. asked by Ruth
3. 1,426 views
A golf ball is drive. With an initial velocity of 25 m/s at an angle of 35 degrees with the horizontal find the maximum height
1. 1 answer
2. asked by Anthony
3. 1,374 views
When empty, a particular helicopter of mass 3770 kg can accelerate straight upward at a maximum acceleration of 1.32 m/s2. A
1. 1 answer
2. asked by Rae
3. 1,362 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. 1 answer
2. asked by zach
3. 1,357 views
A psychologist wants to estimate the variance of employee test scores. A randomsample of 18 scores had a sample standard
1. 1 answer
2. asked by Janelle
3. 1,336 views
Suppose you increase your walking speed from 1m/s to 3m/s in a period of 1s. What is your acceleration?a:2m/s b:5m/s c:4m/s
1. 2 answers
2. asked by Anonymous
3. 1,320 views
An equilateral triangle 10.0 m on a side has a 1.00-kg mass at one corner, a 2.00-kg mass at another corner, and a 3.00-kg mass
1. 0 answers
2. asked by Cooper
3. 1,307 views
What is the annual interest rate if $1600 is invested for 6yrs. and 456 in intrest is earned
1. 2 answers
2. asked by Zach
3. 1,306 views
An astronaut exploring a distant solar system lands on an unnamed planet with a radius of 3800 km. When the astronaut jumps
1. 2 answers
2. asked by Cooper
3. 1,303 views
You buy a bottle of juice for $1.00. The juice costs .90 cents more than the empty bottle. How much does the empty bottle cost??
1. 1 answer
2. asked by sarah
3. 1,262 views
Earthquakes occur because of _____.plate tectonics cracks in the crust landslides volcanoes
1. 2 answers
2. asked by sam
3. 1,262 views
Hydrocodone bitartrate is used as a cough suppressant. After the drug is fully absorbed, the quantity of drug in the body
1. 3 answers
2. asked by John
3. 1,256 views
When the Earth, Moon, and Sun form a right triangle, with the Moon located at the right angle, the Moon is in its third-quarter
1. 0 answers
2. asked by Cooper
3. 1,251 views
Find the area of the region bounded by the parabola y = 4x^2, the tangent line to this parabola at (4, 64), and the x-axis.
1. 0 answers
2. asked by Ryan
3. 1,223 views
A 235-g block is pressed against a spring of force constant 1.55 kN/m until the block compresses the spring 10.0 cm. The spring
1. 0 answers
2. asked by marvin
3. 1,191 views
if 1 adult male is randomly selected and is assumed to have 20 lb of carry on baggage, find the probabilty that his total is
1. 1 answer
2. asked by Kristie
3. 1,185 views
. Construct a Gantt chart and project network for the following set of activities, compute the length of each path in the
1. 0 answers
2. asked by Zanobia
3. 1,175 views
Suppose one card is selected at random from an ordinary deck of 52 playing cards.Let A= event a diamond is selected B=event a
1. 1 answer
2. asked by HM
3. 1,172 views
If the equation of motion of a particle is given by s = A cos(ωt + δ),the particle is said to undergo simple harmonic motion.
1. 0 answers
2. asked by nyk
3. 1,153 views
which of the following is not Abrahamic religion? a. christianity b. buddhism c. judaism. d. islam
1. 1 answer
2. asked by tracy
3. 1,134 views
A drawer contains 2 black sock, 8 gray saocks, and 3 blue socks. Without lookign you draw out a sock and the4n draw out a second
1. 1 answer
2. asked by l kaljfd
3. 1,128 views
Water flows over a section of a waterfall at the rate of 5.4 104 kg/s and falls 38 m. How much power is generated by the falling
1. 4 answers
2. asked by dale
3. 1,119 views
An Atwood's machine consists of blocks of masses m1 = 13.0 kg and m2 = 19.0 kg attached by a cord running over a pulley as in
1. 0 answers
2. asked by Anonymous
3. 1,118 views
A tourist bus leaves Richmond at 1:00 P.M. for New York City. Exactly 24 minutes later, a truck sets out in the same direction.
1. 4 answers
2. asked by Jonny
3. 1,116 views
Please help me with coming up with a thesis statement for this passage ?In Cormac McCarthy's The Road, the father and an old man
1. 2 answers
2. asked by mikku454
3. 1,096 views
Perform the indicated oprrations and then simply.w-2/w -8 - w + 2/w + 8 + w - 104/w^2 -64
1. 1 answer
2. asked by Jones
3. 1,088 views
Can any sample proportion less than 0.5 be used to support a claim that the population proportion is greater than 0.5?
1. 2 answers
2. asked by tina
3. 1,076 views
there are 24 students in a science class. Mr. Sato will give each pair of students 3 magnets. So far, Mr. Sato has given 9 pairs
1. 5 answers
2. asked by kayla
3. 1,075 views
The total cost of producing x units is C(q) = 2q3- 6q2-18q+108 (a) At what level of production will the total cost be minimized?
1. 0 answers
2. asked by Anonymous
3. 1,073 views
Identify the degree of each term of the polynormial and the degree of the polynormial.-4x^3+2x^2+7x+1 What is the degree of :
1. 1 answer
2. asked by Lynn
3. 1,059 views
A ball rolls along a desktop with an uniform velocity of 3 m/s. What is the displacement after 10 seconds have passed?A ball is
1. 2 answers
2. asked by kim
3. 1,057 views
What does this interest formula stand for:PRT=I
1. 1 answer
2. asked by Anonymous
3. 1,049 views
The mean score on a Math exam was 50% and the standard deviation was 10%. Assume the results were normally distributed.(a) What
1. 1 answer
2. asked by Noelle
3. 1,041 views
A car started out from Memphis toward Little Rock at the rate of 60km/h. A second car left from the same point 2 hours later and
1. 1 answer
2. asked by Jonny
3. 1,010 views
why would 4-methyl-2-pentanone have a lower boiling point that 2-hexanone if they are isomers and their molecular weights are
1. 1 answer
2. asked by Sarah
3. 1,009 views
A 2.9-kg 12-cm-radius cylinder, initially at rest, is free to rotate about the axis of the cylinder. A rope of negligible mass
1. 0 answers
2. asked by Kayla
3. 998 views
For the following equation, state the value of the discriminant and then the nature of the soluation:-3x^2-8x-11=0 Is there one
1. 1 answer
2. asked by Jones
3. 985 views
Two dogs pull on a toy. One pulls with a force of 10 N, the other with a force of 15 N.(a) In what relative directions can the
1. 0 answers
2. asked by Hannah
3. 975 views
Multiply , then simplify5 sqrt:75 - 7 sqrt:3
1. 1 answer
2. asked by Bill
3. 972 views
At an outdoor market, a bunch of bananas attached to the bottom of a vertical spring of force constant 16.0 N/m is set into
1. 2 answers
2. asked by kate
3. 963 views
Use the pattern "1 less than 3 times the number." Start with the number 5. What is the 4th number in the pattern?
1. 2 answers
2. asked by Lea
3. 960 views
Predict whether the following reactions will be exothermic or endothermicA.] N2 (g) + 3H2 (g) --> 2NH3 (g) B.] S (g) + O2 (g)
1. 1 answer
2. asked by Matt
3. 953 views
Suppose one of the Global Positioning System satellites has a speed of 4.50 km/s at perigee and a speed of 3.52 km/s at apogee.
1. 1 answer
2. asked by Cooper
3. 929 views
A ball rolls along a desktop with an uniform velocity of 3 m/s. What is the displacement after 10 seconds have passed?A ball is
1. 1 answer
2. asked by kim
3. 915 views
Show that limit as n approaches infinity of (1+x/n)^n=e^x for any x>0...Should i use the formula e= lim as x->0 (1+x)^(1/x) or
1. 1 answer
2. asked by Frederick E.
3. 914 views
Ms Newton's class took the same test as Mr. Euclid's students. Ms. Newton's class has 20 students, and the average(mean) test
1. 2 answers
2. asked by Kahlil
3. 912 views
An equilateral triangle 10.0 m on a side has a 1.00-kg mass at one corner, a 2.00-kg mass at another corner, and a 3.00-kg mass
1. 0 answers
2. asked by Cooper
3. 910 views
If two of the line segments of a polygon are parallel, what is the least number of sides it could have?
1. 4 answers
2. asked by Nelson
3. 893 views
Gravity on Titan Titan is the largest moon of Saturn and the only moon in the solar system known to have a substantial
1. 0 answers
2. asked by Cooper
3. 892 views
What are the reasons for the olympic games to be largest of all sporting events?
1. 3 answers
2. asked by Lorry
3. 889 views
Agreement questions.1. A number of small bruises __________ present upon examination. A) was B) were 2. A) The patient was
1. 4 answers
2. asked by Cindy
3. 888 views
The index most widely used by the government and the private sector to measure changes in the cost of living is the (a) the GDP
1. 0 answers
2. asked by JJ
3. 872 views
.Pump Jack Problem: An oil well pump jack isshown in Figure 3-9f. As the motor turns, the walking beam rocks back and forth,
1. 1 answer
2. asked by Matt
3. 869 views
A poll was taken of 100 students at a commuter campus to find out how they got to campus. The results are below.37 said they
1. 1 answer
2. asked by Monica
3. 865 views

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