Wednesday
October 1, 2014

Posts by Kathy


Total # Posts: 717

chemistry
acid rain --how does it cause environmental and health problems
September 13, 2013

chemistry
what volume of 16 sulfuric acid must be used to prepare 1.5 L of a 0.10 M H2SO4 solution
September 13, 2013

chemistry
what is the configuration of an electron
September 13, 2013

chemistry
what law allows us to calculate a change in volume when the temperature changes , but the pressure is held constant
September 13, 2013

chemistry
how much oes 3.10cm3 of copper weigh
September 13, 2013

chemistry
conver 0.100Kg to g
September 13, 2013

chemistry
conver 0.100Kg to g
September 13, 2013

chemistry
conver 0.100Kg to g
September 13, 2013

chemistry
given an atmospheric pressure of 750mm Hg, find the partial pressures of nitrogen, oxygen. carbon dioxide and argon
September 13, 2013

law
If you are in college go to the university library and ask a reference librarian. They are wonderful ad will teach you how to do research correctly. In the mean time, go to Google Scholar and type in Miranda Rights in the first field and supreme court in the second field. ...
September 7, 2013

English
What is the simple subject of the following sentence: A large number of swimmers competed in the race.
September 6, 2013

math
0.625 divided by 6.5
September 4, 2013

Algebra 1
How do you solve sentence problems
September 1, 2013

trig
the base of a trapezoid are 22 and 12 respectively. the angle at the extremities of one base are 65 degree and 45 degree respectively. find two legs?
July 31, 2013

Finance
Assignment 8.1: Capital Budgeting Application You have just graduated and one of your favorite courses was Financial Management. While you were in school, your grandfather died and left you $1 million. You have decided to invest the funds in a fast-food franchise and have two...
July 23, 2013

statistics
A senator asks his constituents to rank seven issues in order of importance. How many rankings are possible?
July 1, 2013

Math
if 2 meters of a wire weigh 24.8 grams, how much do 6 meters of wire weigh?
June 11, 2013

Physics (ASAP)
Please I need help. I don't know how to do this problem without the SPEED VALUE. A sport utility vehicle is travelling at a speed of v m/s. If its momentum has a magnitude of 32,800 kg·m/s, what is the SUV's mass? _______ kg Thank you.
May 3, 2013

Physics (ASAP)
Please, I need help with this problem A cue stick applies an average force of 66 N to a stationary 0.17 kg cue ball for 0.0012 s. What is the magnitude of the impulse on the cue ball? Thank you
May 3, 2013

Physics (ASAP PLEASE)
Please, help me answer this question. Two balls are moving in the same direction. Ball A has half the mass of ball B, and is moving at twice its speed. (a) Which ball has the greater momentum? (b) Which ball has greater kinetic energy? Thank you
May 3, 2013

Physics
Can anyone please help me with this question? I don't understand why the speed is v m/s. A sport utility vehicle is travelling at a speed of v m/s. If its momentum has a magnitude of 32,800 kg·m/s, what is the SUV's mass? Thanks I know that I have to use the ...
May 2, 2013

Physics
Please, help me answer this question. Two balls are moving in the same direction. Ball A has half the mass of ball B, and is moving at twice its speed. (a) Which ball has the greater momentum? (b) Which ball has greater kinetic energy? Thank you
May 2, 2013

Physics (Momentum)
Please help me answer this problem.How do I answer this if I don't have the mass of the monkey and the scooter together? At a circus animal training facility, a monkey rides a miniature motorscooter at a speed of 7.0 m/s. The monkey and scooter together have a mass of m kg...
May 2, 2013

Physics (Momentum)
Please help me answer this problem.How do I answer this if I don't have the mass of the monkey and the scooter together? At a circus animal training facility, a monkey rides a miniature motorscooter at a speed of 7.0 m/s. The monkey and scooter together have a mass of m kg...
May 2, 2013

Physics (Momentum)
Can anyone please help me with this question? I don't understand why the speed is v m/s. A sport utility vehicle is travelling at a speed of v m/s. If its momentum has a magnitude of 32,800 kg·m/s, what is the SUV's mass? Thanks I know that I have to use the ...
May 2, 2013

Physics (MOMENTUM)
Please, help me answer this question. Two balls are moving in the same direction. Ball A has half the mass of ball B, and is moving at twice its speed. (a) Which ball has the greater momentum? (b) Which ball has greater kinetic energy? Thank you.
May 2, 2013

Math
99440
May 1, 2013

Math
A national study reports that 20% of college freshman have GPA above 3.5. We wish to determine if the corresponding proportion is higher at a local university. To conduct the test we select a random sample of 100 freshmen and determine that 26 of them have GPA above 3.5. Run ...
April 30, 2013

math
what is the slope and y-intercept for y=-2/3x -4.3
April 22, 2013

physics (Newton"s law of gravitation)
Please, can someone help me with this? A neutron star and a black hole are 2.400e+12 m from each other at a certain point in their orbit. The neutron star has a mass of 2.78×1030 kg and the black hole has a mass of 9.94×1030 kg. What is the magnitude of the ...
April 21, 2013

Physics (Electric fields and Coulomb's Law)
I need help with this question please. An ion harvester is scouring deep space for isolated xenon (Xe+) ions. A xenon ion is singly ionized, and has a charge of +e. If the field meter reads 0.000000202 N/C, how far away is it from the ion? _________ m Thank you
April 21, 2013

Physics (Electric charge for charged rods)
I need help with this question, please. What is the direction of the force between (a) two particles whose charges are the same sign and (b) two particles of opposite sign? (c) What happens to the magnitude of the force when the distance between two particles is increased? ...
April 21, 2013

physics (Newton's law of gravitation)
Can anyone please help me with this question? I am really confused. A neutron star and a black hole are 2.400e+12 m from each other at a certain point in their orbit. The neutron star has a mass of 2.78×1030 kg and the black hole has a mass of 9.94×1030 kg. What is...
April 21, 2013

Physics (G and g)
Please, I need help with this problem. I would really appreciate it. The top of Mt. Everest is 8850 m above sea level. Assume that sea level is at the average Earth radius of 6.38×106 m. What is the magnitude of the gravitational acceleration at the top of Mt. Everest? ...
April 21, 2013

Electric fields and Coulomb's law
Please, I need help with this question. An ion harvester is scouring deep space for isolated xenon (Xe+) ions. A xenon ion is singly ionized, and has a charge of +e. If the field meter reads 0.000000202 N/C, how far away is it from the ion? Answer:__________ m Thank you.
April 21, 2013

Electric fields and Coulomb's law
Can anybody please help me with this question? Two friends are playing a version of proton golf where the hole is marked by a single proton. The first friend reads his meter, and declares he has a field strength of 27.5 N/C. The second friend looks at her meter and realizes ...
April 21, 2013

Electric charge and Coulomb's Law
Can anyone help me explain this problem? Your help is appreciate it. You are given an apple and an orange. The apple has a net charge of +3×10−17 C. The orange has a net charge of −3×10−17 C. With only this information, can you determine which one...
April 21, 2013

physics (Newton"s law of gravitation)
Could anyone please help me with this problem? I would really appreciate it. The top of Mt. Everest is 8850 m above sea level. Assume that sea level is at the average Earth radius of 6.38×106 m. What is the magnitude of the gravitational acceleration at the top of Mt. ...
April 21, 2013

Uof Phoenix
6x=12
April 19, 2013

one more
thanks so much! what about 4xsquared + 4x - 3= 0
April 9, 2013

math (Reiny please)
how would i do these problems: 6. xsquared + 2x -7 =0 7. 6xsquared - 2x -1 = 0
April 9, 2013

science
can you simply explain what happens to ice that breaks off a glacier that lands in the water
April 2, 2013

physics (Newton's Laws)
Please help, A cat is stuck in a tree. You are designated with the job to get it out, yet you do not want to climb the tree, because you may get stuck as well. Instead you set up a pulley system. A rope (consider it massless) runs from the seat you sit on over an ideal pulley...
March 17, 2013

physics (Newton's Laws)
One end of a spring is attached firmly to a wall, and a block is attached to the other end. When the spring is fully compressed, it exerts a force F on the block, and when the spring is fully extended, the force it exerts on the block is −F. What is the force of the ...
March 13, 2013

physics (Newton's Laws)
If an acrobat who weighs 800 N is clinging to a vertical pole using only his hands, neither moving up nor down, can we determine the coefficient of static friction between his hands and the pole? Explain your answer. Please, help. Thank you
March 13, 2013

Probability
2/3 people at a spa are there to lose weight. There are 10 people there and I approach one. What is the probability that the person is there to lose weight? The random variables are based on 10 rolls of a dice. 1(1)+ 2(2)+ 3(1)+ 4(2)+ 5(1)+ 6(3) {1=4=3=8=1=18}= 35 Please help ...
March 8, 2013

math
I have two questions 1.) 2750 grams= lbs 2.)2km= yards and in my book I have a completely different answer. Thank you
February 28, 2013

Physics (Velocity in two dimensions)
Please explain, A clown in a circus is about to be shot out of a cannon with a muzzle velocity of 15.2 m/s, aimed at 52.7° above the horizontal. How far away should his fellow clowns position a net to ensure that he lands unscathed? The net is at the same height as the ...
February 23, 2013

Physics (Velocity in two dimensions)
Please help, The displacement vector for a 15.0 second interval of a jet airplane's flight is (3850, −2430) m. (a) What is the magnitude of the average velocity? (b) At what angle, measured from the positive x axis, did the airplane fly during this time interval? ...
February 21, 2013

Physics (Velocity in two dimensions)
Please help: The displacement vector for a 15.0 second interval of a jet airplane's flight is (3850, −2430) m. (a) What is the magnitude of the average velocity? (b) At what angle, measured from the positive x axis, did the airplane fly during this time interval? ...
February 21, 2013

math
a volume is 864 what is the length width and height if length and width are the same and height is half of width and length
February 20, 2013

Physics (vectors)
I am stuck with this question.Please help. I have a triangle that is not a right triangle with sides A, B, and C.(no values).The arrow's heads of A and B are joined and the arrow's head of C is in the tail of B. If the resultant is A,what is the vector equation, and ...
February 15, 2013

Physics (vectors)
Please help me with this question. I have a triangle that is not a right triangle with sides A, B, and C.(no values).The arrow's heads of A and B are joined and the arrow's head of C is in the tail of B. How do you find the resultant, the vector equation, and the ...
February 15, 2013

Physics (vectors)
Please help me with this question about vectors. Thanks. If you are given a graph with a vector starting at the point (1,-1)and the arrow goes to the point (0,-4). What is the vector in rectangular coordinate? I answered (0,-3), but the coordinate for x is wrong and I can'...
February 13, 2013

Physics (vectors)
Could you please help me with this exercise? Thanks. Adding and substracting vectors Solve for the unknown variables: (a) (a, b) + (3, 0) = (6, 7) (b) (11, c) + (d, 5) = (-12, −3) (c) (5, 5) + (e, 4) = (2, f) (d) (-1, −3) − (5, g) = (h, 2)
February 13, 2013

Physics (vectors)
Could you please help me with this exercise? Thanks. Adding and substracting vectors Solve for the unknown variables: (a) (a, b) + (3, 0) = (6, 7) (b) (11, c) + (d, 5) = (-12, −3) (c) (5, 5) + (e, 4) = (2, f) (d) (-1, −3) − (5, g) = (h, 2)
February 13, 2013

Chemistry
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.200 M HClO(aq) with 0.200 M KOH(aq). The ionization constant for HClO can be found here. A. Before any addition of KOH B. After addition of 25.0 mL of KOH C. After 30.0 mL of KOH D. After 50.0 mL...
February 10, 2013

algebra
five-sixths of a number is -60. What is the number?
February 9, 2013

geometry
the diagonals of a rectangle are 8 units long and intersect at a 60 degree angle. find the dimensions of the rectangle
February 9, 2013

Physics
A watermelon cannon fires a watermelon vertically up into the air at a velocity of +11.5 m/s, starting from an initial position 1.20 meters above the ground. When the watermelon reaches the peak of its flight, what is (a) its velocity, (b) its acceleration, (c) the elapsed ...
February 2, 2013

Math
Marty ate 1/4 of a pizza. Rob ate 1/5 of a pizza . How could rob eaten more pizza than Marty?
January 30, 2013

Physics
Your friend of mass 150 can just barely float in fresh water. Find her volume.
January 25, 2013

Health
What is the correlation on how society defines health and how they pursue health
January 12, 2013

Health
How does society define health
January 12, 2013

LAW
Jana finds a home priced at $180,000 that she would like to buy. She is concerned, however, about her ability to get a loan. Accordingly, she and the seller reach agreement that Jana will buy the home if she can get a loan for $180,000 within 45 days. What type of condition is...
December 25, 2012

physics..please help me due in a couple of mins.!!
i went to other post on this an it redirected me to this one...if you dont mind i really would appreciate if you re-answer the question
December 12, 2012

physics..please help me due in a couple of mins.!!
do you have a answer or formula to this bobpursley?
December 12, 2012

physics..please help me due in a couple of mins.!!
Two identical guitar strings are stretched with the same tension between supports that are not the same distance apart. The fundamental frequency of the higher-pitched string is 400Hz, and the speed of transverse waves in both wires is 200 m/s. How much longer is the lower-...
December 12, 2012

Buisness Law
In Reno v. Condon, Attorney General of South Carolina, the case in the book addressing whether Congress could prohibit states from selling personal information of citizens without consent, the U.S. Supreme Court ruled that: a. The Driver’s Privacy Protection Act was a ...
December 11, 2012

Economics
The marginal revenue product (MRP) of land declines as more land is brought into production because: A.land is a "free and nonreproducible gift of nature." B.of diminishing returns. C.land rent has no incentive function. D.the supply of land is fixed.
December 10, 2012

Simmons
How is guilt a powerful force in human life
November 26, 2012

Simmons
How is guilt a powerful force in human life
November 26, 2012

algerbra
what is the right way to set up a formula in finances for a simple interest word problem: P=6853 down pymt=853 monthly pymt = 163.00 per month for 48 months.
November 15, 2012

College Math
answer is b
November 8, 2012

physics
A 50 kg diver leaps off the 20 meter diving board with a velocity of 5 m/s. What is his kinetic energy just before hitting the water?
November 5, 2012

algebra
A grandmother is looking for a plan to finance her new grandchild’s college education. She has $25,000 to invest. Search the internet and locate a long-range investment plan, CD, Savings Bond, etc, for the grandmother. The plan is to earn compound interest. Calculate the ...
November 4, 2012

algebra
if x% of y = 15 then y% of x = what?
November 1, 2012

Calculus
Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Then find the area of the region. 2y=3(x^(1/2)) , y=5 and 2y+3x=6
October 26, 2012

physics
standing on the ground, you throw a 0.55 kg lunch bag at a friend, you manage to throw the bag straight up (vertically) using 50 J of energy to throw it there is also a crosswind of 0.5 m/s. How high will the bag travel before all of its kinetic energy is converted into ...
October 24, 2012

Math
1.describe the meaning of the number -.1 in the formula, in terms of its meaning in relation to the profit.
October 24, 2012

physics
If the height of the water slide in the figure is h = 2.8 m and the person's initial speed at point A is 0.47 m/s, what is the new horizontal distance L between the base of the slide and the splashdown point of the person?
October 22, 2012

math/algebra
How do I find the quotient of 5/22 & 6/11?
October 22, 2012

plaiance
what is an algebric expression for 5 less than 34
October 3, 2012

math
50000
October 3, 2012

Math riddles for 4th grade
divide me by 10 and 3 remians. a square number my first digit be. My second digit is the product of1 and 3. All together I am greater than 50.
September 29, 2012

physical science
If a 2 kg block has a gravitional potential energy of 58.5 J, how high is it above the floor?
September 12, 2012

math/science
If a bee flies 6km/h how long will it take to reach a flower that is 1.2 km from the hive?
September 9, 2012

chemistry
the distance between new york and san francisco is 4741000m. Now that may sound impressive but to put all those digits on a car odometer is slightly inconvenient. in this case kilometers are a better choice for measuring distance. change the distance to kilometers
September 9, 2012

Phyichs
please help me
August 30, 2012

Phyichs
WHAT IS THE DIRECTION OF A NULL VECTOR ?
August 30, 2012

english
oh okay. for my anglish project were going over the "animal farm" book. and we have to create a one verse anthem. "Come up with an anthem (at least one verse) and a tune that it can be sung to." - his words
August 28, 2012

english
can someone please help me on making an anthem for a farm? thank you!
August 28, 2012

Physics
A person throws a rock straight up into the air. At the moment it leaves the person's hand it is going 76 mph. When the rock reaches its peak, how fast is it going and what is the magnitude and direction of its acceleration? Ignore air drag.
August 22, 2012

Math
What is the area of a parallelogram with side- 6cm, 6cm, 9cm, 9cm?
August 21, 2012

7th Grade Math
In an addition problem the answer should have the same number of significant figures as the measurement with the mot decimal places. True or False? I say True.
August 21, 2012

7th Grade Science
Oh, Thank You Lisa.
August 21, 2012

7th Grade Science
What can be inferred after performing the experiments in the atomic theory lab? A) Where matter comes from B) How salt is formed C) If salt can dissolve in water D) If matter is created or destroyed Is it D?
August 21, 2012

Accounting
Q1a: Complete Problem 14.1 on page 269 of the Collier text (solution is on page 501-502). Next work the problem again using the following variables: project yield annual net cash inflows are $10,500 for the next five years; interest rate of 16.5%, and the initial investment of...
August 5, 2012

management decision making
Analyze and compare both data sets using the data analysis and biases concepts from Chapter 11 of Sekaran & Bougie (2010). Compare only those categories that you find are significant to your analysis in demonstrating whether the US demographics based promotions can or cannot ...
July 31, 2012

statistics
The National Center for Education surveyed 4400 college graduates about the lengths of time required to earn their bachelor's degrees. The sample mean is 5.15 years, and assume that standard deviation is known to be 1.68 years. Based on the sample data, construct the 99% ...
July 30, 2012

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