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A string of mass 0.0003 kg/m and 0.5m long is vibrating 200 cycles per second. What must be the tension? What hanging mass would
1. 1 answer
2. 544 views
All varieties of a certain brand of cookies are $3.50 A person buys peanut butter and chocolate chip cookies. Write an
1. 0 answers
2. 411 views
All varieties of a certain brand of cookies are $3.50 A person buys peanut butter and chocolate chip cookies. Write an
1. 3 answers
2. 769 views
Suppose that each student in stat. has a 9% chance of missing class on any given day and that student attendance is independent.
1. 1 answer
2. 611 views
Suppose that each student in stat. has a 9% chance of missing class on any given day and that student attendance is independent.
1. 0 answers
2. 674 views
Decompose the following into partial fractions after factoring the denominator as much as possible. Please show some work so I
1. 3 answers
2. 463 views
given n=74 an x=32.find ^p and ^q
1. 1 answer
2. 254 views
An object at rest begins movinghorizontally on the x-axis, starting at position x(t) = 0 feet at time t = 0 seconds.Suppose,
1. 0 answers
2. 817 views
how many even 4 digit whole numbers exisit such that the thousands digit it odd all 4 digits different
1. 0 answers
2. 580 views
mary jogged 5 7/10 miles on monday and 4 1/8 miles on tuesday. Raul jogged 6 1/2 miles on monday and 3 4/5 miles on tuesday. How
1. 3 answers
2. 723 views
The perimeter of a triangle is 47 miles. The first side is 5 miles less than twice the second and the third is 2 miles more than
1. 1 answer
2. 946 views
Calculate [H3O ], [ClO4–], and [OH–] in an aqueous solution that is 0.170 M in HClO4(aq) at 25 °C.
1. 1 answer
2. 3,762 views
Calculate the volume of 0.3MHCL used to neutralise NaOH solution
1. 1 answer
2. 326 views
A truck driver, on assignment from the owner of the truck is to drive on a 300 mile stretch of highway at a constant speed of v
1. 2 answers
2. 661 views
A girl 1.6 m tall, stands 3.6 m from a lamp post at night. Her shadow from the light is 0.9m long. How high is the lamp post?
1. 1 answer
2. 1,332 views
Is the dissolution of calcium sulfate endothermic or exothermic? How do you know?
1. 1 answer
2. 936 views
Write a balanced equation for the following:aqueous barium chloride reacts with aqueous sodium chromate to form aqueous sodium
1. 1 answer
2. 4,831 views
The forensic technician at a crime scene has just prepared a luminol stock solution by adding 15.0g of luminol into a total
1. 3 answers
2. 4,179 views
The density of ice is 917 kg/m3, and the density of sea water is 1025 kg/m3. As shown is the figure, a polar bear climbs onto a
1. 1 answer
2. 766 views
Determine the boiling point of a solution contanting 36.1grams calcium chloride molar mass 112 in 200.0grams water.
1. 2 answers
2. 423 views
The molal freezing point constant(Kf) for acetic acid is 3.90 C/m. When 31.5 grams of unknown solute is dissolved in 650 grams
1. 1 answer
2. 694 views
How many grams of NH4Br(Molar Mass=98g)are in 440.0 mL of 1.75Moles NH4Br
1. 1 answer
2. 902 views
A Serum taken from a patient being treated with lithium for manic-depressive illness was analyzed for lithium concentration. A
1. 1 answer
2. 930 views
If you are titrating 25.00 mL of a 1.00mg/ml CaCO3 solution, how many mL of 0.010M EDTA solution will be required to reach the
1. 1 answer
2. 729 views
A specimen has .625 the amount of carbon 14 you would find in a living specimen.How many half-lives has the specimen been
1. 1 answer
2. 642 views
A specimen has .625 the amount of carbon 14 you would find in a living specimen.How many half-lives has the specimen been
1. 1 answer
2. 549 views
A specimen has .625 the amount of carbon 14 you would find in a living specimen.How many half-lives has the specimen been
1. 1 answer
2. 1,073 views
Determining Chemical Formulas?This was on my test a few days ago for Basic Chemistry, I received 8/20 and I'd really like to see
1. 1 answer
2. 530 views
Determining Chemical Formulas?This was on my test a few days ago for Basic Chemistry, I received 8/20 and I'd really like to see
1. 0 answers
2. 460 views
I am filling out an Honors application for English/History and one of the questions asked why do I wish to take this course..
1. 2 answers
2. 443 views
Please Help Quick,Write Out The Balanced Chemical Equation For Respiration In An Athlete In A Race.
1. 3 answers
2. 444 views
Balanced reaction for cyclohexene to adipic acid. Used na2wo4 with h2o2, PTC, and khso4.
1. 2 answers
2. 1,277 views
Lily estimated a quotient of 120 and found an actual quotion of 83. What should she do next? Explain.
1. 10 answers
2. 3,797 views
5. Park Rangers wanted to estimate the total number of wild mustangs in Central Oregon. They tagged 30 wild mustangs and sent
1. 0 answers
2. 256 views
Three circles with radii of 4, 5, and 6 cm, respectively, are tangent to each other externally. Find the angles of the triangle
1. 2 answers
2. 1,361 views
The diagonals of a parallelogram intersect at a 42◦ angle and have lengths of 12 and 7 cm. Find the lengths of the sides of
1. 1 answer
2. 1,591 views
This question is about the unnecessary production of carbon dioxideOutdoor flames, such as patio heaters and the Olympic flame,
1. 3 answers
2. 819 views
the specific heat of granite is 0.80 KJ/kg . c. I f 1.6 MJ of heat are added to a 100-kg granite statue of James Precott Joule
1. 0 answers
2. 653 views
what is the Celsius equival of a temperature of 160 F
1. 1 answer
2. 345 views
How many grams of rubidium chloride are present in 125.0 mL of a 1.75M RbCl solution?
1. 1 answer
2. 366 views
What is the volume in liters of a 0.760M K3PO4 solution containing 220.9g of potassium phosphate?
1. 1 answer
2. 442 views
A boat must cross a 260-m-wide river and arrive at a point 110 upstream from where it starts. To do so, the pilot must head the
1. 0 answers
2. 585 views
Ms. Sue could you help me with mt question I posted re interior and find exterior angle having to total 180 degreesI believe the
1. 1 answer
2. 342 views
Find x in triangleExterior is 120 degrees and 20 degrees Find interior x 180 degrees total
1. 0 answers
2. 432 views
Can somebody help me solve this problem ? I am not so good with probability. -A bag contains 2 green marbles and 3 white
1. 4 answers
2. 645 views
If 225.O grams of NO react with excess NH3,how many grams of H2O are produced
1. 1 answer
2. 592 views
How many grams of N2 are produced when 15.0 moles of NH3 react with excess NO
1. 1 answer
2. 1,149 views
how many moles of NO are needed to react with 15.0 moles of NH3
1. 1 answer
2. 422 views
How many grams of HgBr2 can be produced if 10.0 grams of Hg reacts with 10 grams Br2
1. 2 answers
2. 480 views
how many moles of sodium oxide are produced when 3.9 moles of of sodium combine with excess oxygen
1. 1 answer
2. 471 views
I need help please. I answered (c)incorrectly.Chantal and Julia ride horses in the same race. Chantal's horse finishes in one
1. 1 answer
2. 492 views
I need help please. I answered (c)incorrectly.Chantal and Julia ride horses in the same race. Chantal's horse finishes in one
1. 1 answer
2. 502 views
The intensity of an earthquake wave passing through the Earth is measured to be 1.5×10^6 J/m^2*s at a distance of 58km from the
1. 0 answers
2. 678 views
What would be the concentration of dinitrogen pentoxide after 6.00 X 10(2) seconds and how long would it take for the
1. 1 answer
2. 649 views
This problem is 1st order for half life.How long would it take for the concentration of cyclopropane to decrease to 50% of its
1. 1 answer
2. 1,021 views
What would be the concentration of dinitrogen pentoxide after 6.00 X 10(2) seconds and how long would it take for the
1. 5 answers
2. 1,172 views
What is the molarity of a saturated solution of potassium sulfate if the solubility is 13 g per 100 g H2O at 25°C? The density
1. 0 answers
2. 777 views
A bicycle store costs $2400 per month to operate. The store pays an average of $60 per bike. Then average selling price of each
1. 6 answers
2. 2,079 views
The waters surrounding Japan and the nearby ocean currents help to make Japan's climate mostly what?
1. 1 answer
2. 535 views
13,14,29,26,41,53,60,7,89,14Based on the numbers above what is the variance and the standard deviation of the data set. I think
1. 3 answers
2. 930 views
There are 1,800 students at a high school. Of the students who have smoked at least one cigarette in the last month,
1. 4 answers
2. 523 views
There are 1,800 students at a high school. Of the students who have smoked at least one cigarette in the last month,
1. 1 answer
2. 576 views
Express 18 million in scientific notation.I answered 1.8 x 10 to the 7th and was wrong. I don't understand why? You are supposed
1. 2 answers
2. 595 views
Express 18 million in scientific notation.I answered 1.8 x 10 to the 7th and was wrong. I don't understand why? You are supposed
1. 1 answer
2. 498 views
Appropriate cooking methods are cost efficient because?
1. 6 answers
2. 1,073 views
Alyssa, Bert, and Cara are running for school president. Alyssa receives two-sevenths of the votes. Bert receives sixty-five
1. 8 answers
2. 750 views
Consider a 0.71 M solution of each of the following salt dissolved in distilled water. Will the solution by basic, neutral, or
1. 1 answer
2. 573 views
a 0.451 L solution of 1.71 ascorbic acid (ka1=7.9E-5, ka2=1.6E-12) is titrated with 1.35 M NaOH. What is pH when 0.9540 L of
1. 0 answers
2. 407 views
An airplane flies with a speed of 425 mph and a heading of 63°. If the heading of the wind is 24°and the speed of the wind is
1. 1 answer
2. 719 views
A ship leaves the East Coast for California. It is traveling at a constant speed of five knots and takes 200 days to reach
1. 9 answers
2. 1,077 views
Consider a 9.5e-10 M solution of HClO4 at 283 K. What is the pH of the solution?
1. 1 answer
2. 921 views
Diethylamine (C2H5)2NH, is a weak base that ionizes in water,a 0.600 M solution of (C2H5)2NH is 4.65% ionized at 25 degrees
1. 1 answer
2. 1,217 views
The radius of Earth is 6,371 kilometers. A space shuttle orbits 315 kilometers above the surface of Earth. The space shuttle
1. 1 answer
2. 1,369 views
I need to know how to find the probability that z0 is greater than or equal to 2.40 using my TI-83+. The answer is .008200, but
1. 0 answers
2. 475 views
A student dance committee is to be formed consisting of 3 boys and 4 girls. If the membership is to be chosen from 7 boys and 6
1. 1 answer
2. 1,698 views
The grade of a highway up a hill is 50%. How much change in horizontal distance is there if the vertical height of the hill is
1. 1 answer
2. 1,070 views
how do you find the pH of a titration solution at its halfway point to the equivalence, and how would it affect solutions
1. 1 answer
2. 1,034 views
An object is placed 11 cm in front of a convex mirror of focal length 4 cm. Using the lens equation, find where the image will
1. 0 answers
2. 421 views
After receiving a grant for music education, a school decides to build a new band room for its expanded music program.
1. 1 answer
2. 498 views
An artist makes a painting that is 12 feet by 9 feet. He paints a frame around the painting. The frame is 3 inches wide. What is
1. 2 answers
2. 658 views
not much of a question but more of an appreciation, thanks for helping i was really confused before today
1. 1 answer
2. 352 views
consider 1.0 L of a solution which is 0.55 M HF and 0.2 M NaF (Ka for HF = 7.2 x 10-4). Calculate the pH after 0.10 mol of HCl
1. 1 answer
2. 602 views
consider 1.0 L of a solution which is 0.55 M HF and 0.2 M NaF (Ka for HF = 7.2 x 10-4), Calculate the pH of this solution
1. 4 answers
2. 438 views
I need to know how to find the probability that z0 is greater than or equal to 2.40 using my TI-83+. The answer is .008200, but
1. 1 answer
2. 397 views
How can I get 24 out of 2.4, 7.5, 1, and 6 using +, -, *, and/or /
1. 2 answers
2. 303 views
Using Raptor, create a condition loop that will ask the user for input of two numbers.The numbers should be added and the sum
1. 0 answers
2. 1,145 views
Develop psuedocode to control operation of vending machineThe ACME Company has approached you with a request to develop the
1. 0 answers
2. 941 views
I don't know the formula to figure this out.Charlie and Peter are driving around a racetrack. Charlie drives at an average speed
1. 1 answer
2. 620 views
An archaeologist has set up a dig at a newly discovered site. She and her team start excavating an area that is 36 feet by 24
1. 2 answers
2. 461 views
Charlie and Peter are driving around a racetrack. Charlie drives at an average speed of 108 miles per hour. Peter drives at an
1. 1 answer
2. 1,070 views
Charlie and Peter are driving around a racetrack. Charlie drives at an average speed of 108 miles per hour. Peter drives at an
1. 1 answer
2. 535 views
The area of a circus ring is about 1,385 square feet. What is the circumference of the ring?
1. 2 answers
2. 1,437 views
Franco is ordering lunch with a drink, sandwich, and a salad. He has a choice of 3 drinks, 2 sandwiches, and 4 salads. How many
1. 1 answer
2. 625 views
A baseball player throws a baseball up at 24.3 m/s. How long must he wait before he can catch the baseball on its way down?
1. 1 answer
2. 464 views
Explain how you can determine whether a system of two linear equations will be consisten, dependent, or inconsistent?
1. 1 answer
2. 409 views
Is this reaction endothermic or exothermic? Ca(C2H3O2)2(s) = Ca2+(aq) + 2C2H3O2-(aq)
1. 1 answer
2. 1,442 views
Veterans dayWhen did this first come about And who did do this What does this day mean to vets And what are some events that day
1. 1 answer
2. 413 views
The radius of Earth is 3,959 miles. A spacecraft orbits 6 miles above the surface of Earth. The spacecraft completes 220° of a
1. 3 answers
2. 1,348 views
A 10.4 kg object oscillates at the end of a vertical spring that has a spring constant of 17500 N/m. The effect of air
1. 1 answer
2. 605 views
A sample of hydrogen is collected over water at a total pressure of 648 mm Hg at 22 oC. The vapor pressure of water at 22 oC is
1. 1 answer
2. 741 views

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