Cory
Popular questions and responses by Cory
Math
In a triangle ABC, with angles A, B, and C and sides AB, BC, and AC, angle B is a right (90°) angle. If the sin of angle A is 0.5 and side BC is 8 inches long, what is the length of side AC?
asked on November 12, 2014 
Chemistry
A scientist wants to make a solution of tribasic sodium phosphate, Na_3PO_4, for a laboratory experiment. How many grams of Na_3PO_4 will be needed to produce 375 mL of a solution that has a concentration of Na^+ ions of 1.10M? I tried multiplying .375 L
asked on September 28, 2009 
algebra
It takes Ross, traveling at 24 mph, 10 minutes longer to go a certain distance than it takes Evelyn traveling at 30 mph. Find the distance traveled
asked on March 31, 2016 
human resources
Which one of the following is a good way to deal with frustration?
asked on April 2, 2009 
physics
The energy stored in a capacitor with capacitance C, having an electric potential difference ΔV, is represented by W = 1/2 C ΔV2. One application of this is in the electronic photoflash of a strobe light, like the one in the figure below. In such a unit,
asked on January 12, 2012 
Math
An arrow is launched upward with a velocity of 224 feet per second from the top of a 90 foot platform. What is the maximum height attained by the arrow?
asked on March 2, 2020 
Algebra
Claire jogs around an oval track and is able to complete one lap in 5 minutes. If she jogs at the same pace for 42 minutes, how many laps would she be able to jog? Write an inequality and find the number of whole laps Claire completes.
asked on March 19, 2017 
CHEM
One piece of copper jewelry at 101°C has exactly twice the mass of another piece, which is at 36.0°C. Both pieces are placed inside a calorimeter whose heat capacity is negligible. What is the final temperature inside the calorimeter (c of copper = 0.387
asked on October 20, 2010 
US
What bold statement was made by the Monroe Doctrine?
asked on April 14, 2010 
physics
A vertical spring (k = 1040 N/m) is compressed a distance of 11.6 cm. A 47.9 g mass is placed on the spring, then released so the mass flies upward. When the mass is 120 cm above the spring, what is the speed of the mass?
asked on December 10, 2009 
language
identify past participle what is the past participle of sentence in Christmas Carol. Is it softened and what sentence 1 2 3 or 4
asked on May 17, 2016 
LA  I really need help, guys. :C
Which of the following quotes from the text best reveals Windrider’s approach to living? a. “I don’t know much about being a father.” b. “It’s hard to put things into a letter, especially when the letter is read to your family by another
asked on May 10, 2016 
LA  help, thnx
Which of the following quotes from the text best reveals Windrider’s approach to living? a. “I don’t know much about being a father.” b. “It’s hard to put things into a letter, especially when the letter is read to your family by another
asked on May 10, 2016 
physics
Problem: A long cylinder of diameter 2a has a charge per unit length, lambda, that is uniformly distributed down a very long wire. The cross section of the cylinder is not uniform, with a small hole drilled into it, which has a center at r = R and a
asked on February 20, 2015 
Math
Scott can travel from Rochester, N.Y., to New York City by bus, train, car, or airplane. He can travel from New York to London, England, by airplane or ship. 1. If Scott must return from London to New York by airplane, and from New York to Rochester by
asked on February 13, 2013 
Physics
Two blocks of lead, one twice as heavy as the other, are both at 50 degrees Celsius. The ratio of internal energy of the heavier block to that of the lighter block is? A)1:2 B)2:1 C)1:1 D)4:1
asked on February 11, 2013 
chemistry
If you begin with 0.345 moles of Calcium Nitrate,how many moles of Potassium Phosphate were needed? How many moles of Potassium Nitrate and Calcium Phosphate are produced?
asked on February 15, 2012 
PhysicsKinetic energy
A car has a kinetic energy of 4.32 * 10^5 J when traveling at a speed of 23 m/s. What is its mass? Sorry for repost and if anyone decides to help please step by step.
asked on October 31, 2010 
physics
An astronaut whose mass is 80. kg carries an empty oxygen tank with a mass of 10. kg. The astronaut throws the tank away with a speed of 2.0 m/s. With what velocity does the astronaut start to move off into space?
asked on December 7, 2009 
word unscramble
oelsanlchtoa Try these: http://www.ssynth.co.uk/~gay/anagram.html http://www.unscramble.net =) 1. ssiearf 2. oisb 3.smgleeu
asked on December 11, 2006 
Math
A triangle is reflected across line L and then across line m. If the lines intersect, what kind of isometry is this compostiton of relcections? a. Translation*** b. Rotation c. Reflection d. Glide reflection after a glide reflection, the ponit x is mapped
asked on September 26, 2018 
Vectors?
Find the ground speed of an airplane with air speed of 480km/hr and heading due east if a wind blowing south has a velocity of 40km/hr. I did this: plane: wind: And added them together to get and then used Pythagorean theorem to get a speed of about
asked on February 27, 2018 
Chemistry
How do I rank substances from greatest to least absorbance on an absorbance vs time graph? The graph is from page 2 of a PNAS article entitled "Equilibrium and kinetic constants for the thioldisulfide interchange reaction between glutathione and
asked on January 30, 2018 
Language
From Dragonwings Which of the following quotes from the text best reveals Windrider's approach to living?
asked on May 18, 2016 
social ethics
Which of the following is a claim that utilitarian might use to argue that prayer should not be allowed in school?
asked on May 16, 2016 
social studies
Who became the first Hatian president to be elected democratically in many years in 1990
asked on May 12, 2016 
science
How are continental glaciers different from valley glaciers
asked on May 9, 2016 
math
Leaf and plot diagram How many students ran 6 or more miles 4 3 5 5 0 5 6 6 2 2 4 7 1 3 8 0 4 Is the answer 7 Thanks
asked on April 25, 2016 
math
I need help with assignment " Finding the Best Price" How do I write equation and plot prices. Thank you very much. Show an example Connections Academy
asked on April 18, 2016 
algebra
One number is 1/2 of another number. The sum of the two numbers is 33. Find the two numbers. Use a comma to separate your answers.
asked on March 31, 2016 
Statistics
Hi, I was studying for the math HL exam but I was stuck on Problem 6. I attached it as an image. imgur. com/a/XY874 There's a space because Jiskha does not let me post links.
asked on March 6, 2016 
math
Write a paragraph proof. Given: A is congruent to B. B is congruent to C. and D is perpendicular to C. Prove: A is perpendicular to D
asked on December 1, 2015 
physics
Problem:A long cylinder of diameter 2a has a charge per unit length, lambda, that is uniformly distributed down a very long wire. The cross section of the cylinder is not uniform, with a small hole drilled into it, which has a center at r = R and a
asked on February 20, 2015 
english
I have to find the verb and predicate nouns and predicate adjectives. 1.) Their uniforms are a symbol of their authority. Verb=are PN=symbol
asked on November 4, 2014 
mat 116
Simplify (2x)^3+2^3x
asked on March 16, 2014 
Math
A surveyor, standing 80 ft. from the base of a building, measures the angle of elevation to the top of the building to be 75 degrees. How accurately must the angle be measured for the percentage error in estimating the height of the building to be less
asked on October 3, 2013 
Math
Use the linear approximation (1+x)^k=1+kx to find an approximation for the function (3+3x)^(1/3) for values of x near zero. Help would be greatly appreciated!
asked on October 3, 2013 
chemistry
The volume of a sample of a gas collected over water at 32 Celsius and 752 torr is 627 ml. What will the volume of the gas be when dried and measured at STP? (Vapor pressure of water at 32 Celsius = 35.7 torr)
asked on May 1, 2013 
Chemistry
What is the pH of 125 mL of a 1.59 M solution of a monoprotic weak acid, HA (Ka=9.53×10–5), after 29 mL of 0.37 M NaOH is added? I have no Idea how to start this problem and the homework is due tonight, could someone please help me in calculating this?
asked on March 31, 2013 
chemistry
How many grams of Mg(OH)2 are needed to neutralize 55 ml of 0.25 M HCl . according to the following reaction. (show all calculations for credit) Mg(OH)2 (aq) + 2HCl(aq)  MgCl2 (aq) + 2H2O(l)
asked on March 20, 2013 
Math
THe ratio of the number of students who own an ipod to those who do not own an ipod is 7 to 8. There are a total of 45 students. How many students in the class do not own an ipod?
asked on February 25, 2013 
Math
A quarter is flipped and the outcome is noted. If a head results, then a die is rolled. If a tail results, then the quarter is flipped a second time. 1.What is the probability of obtaining no heads?
asked on February 13, 2013 
Physics
You throw a 6.2 bowling ball down a bowling alley. The ball is in your hand for a distance of 1.5 meters. Its speed increases from 0 to 16m/s(36mph). How much force did you apply?
asked on December 17, 2012 
algebra
Solve by setting up the proper equation to describe the facts given and then carrying out the mathematical calculations to solve for the unknown variable(s). Three times a larger number added to 4 times a smaller number totals 24. When twice the smaller
asked on July 9, 2012 
algebra
Solve by setting up the proper equation to describe the facts given and then carrying out the mathematical calculations to solve for the unknown variable(s). The difference between two numbers is 3, and the sum of those two numbers is 21. What are the two
asked on July 7, 2012 
helppp pleaseee
How many days on average can you survive without food or H20?
asked on May 7, 2012 
personal finance
explain why a savings and loan association that pays a nominal rate of 4.5% interest, compounded daily, actually pays an effective rate of 4.6%.
asked on March 31, 2012 
Reading
Dear Ms. Sue, No matter how hard I try, nobody knows a 6th grade definition for the word "Panning". Can you please help?
asked on February 14, 2012 
physics
Calculate Earth’s gravitational force on the Shuttle astronauts while orbiting at an altitude of 220 miles (or 354 km) above Earth’s surface.
asked on January 14, 2012 
Physics
How do you conclude the answer to the following : What will be the approximate pressure (bar/psi ) for a bullet shaped object weighing 35kg..500mm diameter x 900mm. to travel horizontally for a distance of 30 metres before landing..
asked on January 13, 2012 
Physics
How do you conclude the answer to the following : What will be the approximate pressure (bar/psi ) for a bullet shaped object weighing 35kg..500mm diameter x 900mm. to travel horizontally for a distance of 30 metres before landing..
asked on January 13, 2012 
Since
an orinisams abiliaty to mantian a steadyconditionfor examplebody temputure,is called................
asked on September 26, 2011 
Business
You're an individual investor who holds common stock in a large blue chip company. You've received notice of a proposed change. Instead of using the existing statutory method, the proposal calls for the company's board of directors to be elected by the
asked on August 8, 2011 
science
A stone is thrown vertically upward with a speed of 11.0 m/s from the edge of a cliff 80.0 m high. How much later does it reach the bottom of the cliff?
asked on February 28, 2011 
Math
How do you multiply this polynomial (3m+4n)2
asked on February 23, 2011 
Math
How do you find the expression for the perimeter of the flag One side of a triangular flag is two more than five times tue third side
asked on February 17, 2011 
algebra
a cube has a side length of 4x3, express its volume as a polynomial
asked on January 27, 2011 
physics
What is the total force on the bottom of a swimming pool 22.0 m by 8.9 m whose uniform depth is 1.6 m? What is the absolute pressure on the bottom of a swimming pool? What will be the pressure against the side of the pool near the bottom?
asked on November 16, 2010 
Physics( Checking answer)
Sorry for reposting but I really need to know if I did it right. Please someone help! Two 3.0g bullets are fired with speeds of 40.0 m/s and 80.0 m/s respectively. What are their kinetic energies? Which bullet has more kinetic energy? What is the ratio of
asked on October 31, 2010 
Physics(checking answer)
Two 3.0g bullets are fired with speeds of 40.0 m/s and 80.0 m/s respectively. What are their kinetic energies? Which bullet has more kinetic energy? What is the ratio of their kinetic energies? I got 60 for the first bullet and 120 for the second. I am not
asked on October 31, 2010 
Chemistry
A 30.5 g sample of an alloy at 94.0°C is placed into 48.7 g water at 20.3°C in an insulated coffee cup. The heat capacity of the coffee cup (without the water) is 9.2 J/K. If the final temperature of the system is 31.1°C, what is the specific heat
asked on October 19, 2010 
10th grade algebra 2
the third root of 3, times the square root of 9
asked on June 4, 2010 
Chemistry
When 20.0 mL of 0.100 M AgNO3 are mixed with 80.0 mL of 0.0100 M Na2CrO4, what is the chromate ion concentration (CrO4^2)? Ksp for Ag2CrO4 = 9.0 x 10^12. I think it's 1.0 x 10^9. Am I right?
asked on May 6, 2010 
Chemistry
When you add 25.0 mL of 1.0 M NaF to 20.0 mL of 1.0 M HF,what would be the result? I think it's a basic buffer. Am I right?
asked on May 6, 2010 
US History
How did the Mexican War help expand the sectional divide in the U.S.?
asked on April 14, 2010 
math
how do I do this? 28 students collected 12,374 soda can tabs. If some of the students collected one more tab than the rest of the students, how many collected 441 and how many collected 442?
asked on March 17, 2010 
physics
How do i determine the volume displaced when given mass and volume of an object.
asked on February 24, 2010 
Math
What is the probality of rolling a number less than or equal to 2 on the number cube?
asked on February 1, 2010 
physics
A 15N block is immersed in a salt water (density = 1030 kg/m3). Determine the buoyant force acting on the block if the spring scale reads 11.8 N.
asked on January 19, 2010 
physics
A 15 N block is hung from a spring scale. What is the weight of the block in air?
asked on January 19, 2010 
physics
A 710 kg car travels along US321. How much working is needed to keep the car traveling at a constant speed of 21.1 m/s around a curve of radius 28.2 m?
asked on December 10, 2009 
physics
A person pulls on a 41 kg table with a 203 N force acting at an angle of 27.1 degrees above the horizon. The frictional force on the table is 120 N. What is the speed of the desk after it has moved 2.3 m?
asked on December 10, 2009 
physics
A box of mass 11.9 kg is pulled to the right with a horizontal force of 11.3 N. The box moves to the right with constant velocity, 1.6 m/s. Determine the amount of working the pulling force and the normal force do if the box moves 5.7 m.
asked on December 9, 2009 
physics
A 50. kg cart is moving across a frictionless floor at 2.0 m/s. A 70. kg child, riding in the cart, jumps off so that the child hits the floor with zero velocity. What was the velocity of the cart after the boy jumped?
asked on December 7, 2009 
physics
A 50. kg cart is moving across a frictionless floor at 2.0 m/s. A 70. kg child, riding in the cart, jumps off so that the child hits the floor with zero velocity. What was the velocity of the cart after the boy jumped?
asked on December 7, 2009 
physics
The driver of a 1024 kg truck traveling 32.6 m/s North on I77 has to make a sudden stop. If it requires a distance of 57.1 m for the truck to stop, use conservation of energy to find the net force acting on the truck.
asked on November 18, 2009 
chemistry
A student placed 10.5 g of glucose C6H12O6 in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.mL mark on the neck of the flask was reached. The flask was then shaken until the
asked on October 6, 2009 
math
how do you graph a pattern?
asked on October 4, 2009 
chemistry
Vanadium forms four different oxides in which the percent by mass of vanadium is respectively 76%, 68%, 61%, and 56%. Find the formula of the first oxide. How would I go about doing this? I tried to use my book but there are no examples of this question.
asked on September 21, 2009 
Chemistry
? CaSO_4 + AlCl_3 > CaCl_2 + Al_2(SO_4)_3 How do I balance this equation so that there are the same number of sulfate ions on both sides of the equation?
asked on September 19, 2009 
social studies
physical maps help you see what?
asked on May 11, 2009 
Technical writing
Access the user manual for any one of the following programs or applications: • Microsoft® Access • Microsoft® PowerPoint® • Microsoft® Excel • Microsoft® Word • Microsoft® Outlook® User manuals are available via the “Help” menu in any
asked on April 19, 2009 
distance problem
Suiz drove home at 60mph, but her brother jim, who left at the same time, could only drive at 48mph. when suzie arrived, jim still had 60 miles to go. how far did suzie drive? Please show work
asked on March 8, 2009 
7th grade science
i need help creating acrostic puzzles for the 6 differant land biomes.
asked on February 27, 2009 
6th gr GRAMMAR
why is : she is one of the few quaterbacks who (is/are) ready for prime time the answer is "are" why is that correct? shouldnt it be is because she is one=singular?
asked on October 17, 2008 
Algebra
Trying to figure out how to find all numbers for which the rational expression is undefined. 9/2z+5 Is the answer 5/2 or 10/9? I made a mistake in my typing when I asked the question earlier.
asked on June 16, 2008 
Algebra
Trying to figure out how to find all numbers for which the rational expression is defined. 9/2z+5 Is the answer 0?
asked on June 16, 2008 
ALGEBRA
56 over X = 9X over 2 Can someone tell me what X is please :) Thankyou for your help. If you don't want to just tell me the answer, it would be great if you could give a stepbystep example of how to do one similar to that. or an example of how to do the
asked on May 6, 2008 
math
integration by parts: 1. e^(sqrt(3x+9)) 2. sin(lr) are the answers: 1. 2e^(sqrt(3x+9))(sqrt(3x+9)1) + C 2. r cos(lnr) + sin(lr) + C
asked on May 28, 2007 
calculus
integration by parts: 1. e^(sqrt(3x+9)) 2. sin(lr) are the answers: 1. 2e^(sqrt(3x+9))(sqrt(3x+9)1) + C 2. r cos(lnr) + sin(lr) + C
asked on May 27, 2007 
trig help
I need help finding sinA if cosA=(3/5) and A is greater than 90 degrees, but less than 180 degrees. Draw the quadrant diagram. In the upper left quadrant, greater then ninety degrees, but less than 180, cosine is neg, and sine is positive. Draw a three,
asked on May 6, 2007 
biology
analogy of a cytoskeleton enter Cytoskeleton Tutorial http://www.ccps.k12.va.us/news_release/rh/cell_biology.htm
asked on March 17, 2007 
Ethics
I have an assignment to due on Hispanic American Diversity. I have to chose 4 Hispanic groups. I chose Mexican Americans, Puerto Ricans, Dominican's, and Cubans. I have to write a research paper and identify the linguistic, political, social, economic,
asked on February 11, 2007 
mole
how do i find... howmany moles are in a specified mass mols = grams/molar mass
asked on January 13, 2007 
Pyiscal science
When nickel combines with flourine to form nickel [3] floride, the charge of the nickel ion is All of my references list NiF2 as the formula. Therefore, Ni would have a charge of +2.
asked on December 13, 2006 
science
how was sulfur named? http://www.vanderkrogt.net/elements/elem/s.html
asked on November 4, 2006 
Math
having trouble solving equation 8+3x641=13 can anyone help we have tried everything and it's not working out for me is that 3x or 3*6 3*6 Are you sure you put the right equation? yes. 8+3*641=13 what do the instructions say? Is this a grouping problem?
asked on November 2, 2006 
U.S. Government
Thi‚“ is about James Madisonfs@Federalist Essays. My question ishWhy does madison want to ratify this constitution?h Anyone please answer that question. To ratify means to formally approve the consitution. This means that the states accept the
asked on October 12, 2006

Science
Answers CBDB
posted on October 23, 2019 
science virus
interesting
posted on September 19, 2019