Sunday
February 14, 2016

Posts by Jose

Total # Posts: 409

physics
A 5.75 µC and a -2.61 µC charge are placed 19.8 cm apart. Where can a third charge be placed so that it experiences no net force?
January 25, 2011

physics
two point charges have a total charge of 277 µC. When placed 2.00 m apart, the force each exerts on the other is 20.8 N and is repulsive. what are the charges on both?
January 25, 2011

physics
What is the magnitude of the force a +23 µC charge exerts on a +3.5 mC charge 49 cm away?
January 25, 2011

statistics
A researcher wants to determine if two brands of cigarettes contain the same amount of nicotine. The data is shown in the table. With a significance level of 0.05 to that conclusion can be reached. Set the interval for a confidence of 95% Sample A: 40.3 37.5 37 41.7 29.8 33.5 ...
January 23, 2011

statistics
A company is considering installing new machines to assemble its products. The company is considering two types of machines, but it will buy only one type. The company selected eight assembly workers and asked them to use these two types of machines to assemble products. The ...
January 23, 2011

statistics
A researcher wants to determine if two brands of cigarettes contain the same amount of nicotine. The data is shown in the table. With a significance level of 0.05 to that conclusion can be reached. Set the interval for a confidence of 95% Sample A: 40.3 37.5 37 41.7 29.8 33.5 ...
January 23, 2011

statistic
A company is considering installing new machines to assemble its products. The company is considering two types of machines, but it will buy only one type. The company selected eight assembly workers and asked them to use these two types of machines to assemble products. The ...
January 23, 2011

calculus
A cylindrical metal can with an open top is to be constructed. the can must have a capacity of 24pie cubic inches. the metal used to contruct the bottom of the can costs 3 times as much as the metal in the rest of the can. Find the dimensions(radius and height) of the can that...
January 17, 2011

math
what is the resipical of 9
January 13, 2011

chemistry
Calculate the temperature change in the water upon complete melting of the ice. Hint: Determine how much heat is absorbed by the melting ice and then use q =mC*Delta T to calculate the temperature change of the 314 g of water. under the following conditions: A 14.7 g ice cube ...
November 17, 2010

chem
You can use the Density equation: Density=Mass/volume. They give you the volume and density so you need to manipulate the Density equation to solve for mass. That should give you the grams of acetone in the bottle of acetone and you can use that to solve for the acetone ...
November 15, 2010

Chem
A 12.3 vessel was found to contain N2, Ar He, and He. The total pressure in the vessel was 987 torr and the partial pressures of nitrogen, argon, and helium were 44 torr, 486 torr, and 218 torr, respectively. What was the pressure of neon in the vessel?
November 11, 2010

Math
If you have 21tiles and there are twice as many blue than red and twice as many red than green how many red green and blue are there.
November 10, 2010

Biology
When living cells break down food molecules, energy is A)stored as a phosphate group added to ADP. B)stored as ATP. C)released as heat. D)all of the above
October 28, 2010

project management
How did it contribute to gross underbids and successive cost escalations?
October 26, 2010

chemistry URGENT!
No you fuc*ing morons...
October 24, 2010

Enaglish
avoiding predicate subject mismatching how to correct this sentence Measles is where a viral infection causes skin eruptions.
October 21, 2010

6th grade
how to solve equations containing integers?
October 19, 2010

ALgebra
use slopes to show that the triangle with vertices (-2,7), (6,9) and (3,4) is a right triangle. write an equation of the line that has y-intercept 5/7 and is parallel to the graph of 6x-3y=1
October 19, 2010

ALgebra
find an equation of the line containing, (4,-2) and parallel to the line containing (-1,4) and (2,-3) find an equation of the line containing (-1, 3) and perpendicular to the line containing (3,-5) and (-2,7)
October 19, 2010

math
Tell how you could use line to determine which of two number is greater
October 18, 2010

math
Write three number that are greater than 1,543,000 but less than 1,544,000
October 18, 2010

algebra
one plane left an airport at 11:30 am. A second plane, traveling at 320 mph left the same airport at 1:00 pm and overtook the first plane at 4:30 pm. At what speed was the first plane traveling?
October 17, 2010

math
Alieta was playing the "win a flat"game and had 7 ten rods and 3 unit squares. She rolled a 9. How many ten rods does she have after the exchanges are made?
October 12, 2010

Computer Flowcharts
no clue
October 12, 2010

geography
if a city has a latitude of 45 degree south, what can you infer about their climate.
October 12, 2010

english
identify the verb,subject in the sentence.a cloud of fruit flies hovered over the banana
October 7, 2010

math
A video game store charges a monthly membership fee of $7.50 but the charge to rent each movie is only $1.00 per movie. Another store has no membership fee but it costs $2.50 to rent each movie. How many movies need to be rented each month for the total fees to be the same ...
September 26, 2010

Math
So if i eliminate C first would the resulting two equations be: (8/3A) + (8/3B) = 1 (1/A) + (1/B) = (-8/20) ???????
September 24, 2010

Math
A and B caan finish typing a manuscript in 8/3 days; B and C together, in 40/9 days; A and C together in 20/7 days. How long will each, working alone type the manuscript?
September 24, 2010

calculus
I have an even number of coins in my pcket exactly one third of them are dimes. Draw or stampo the coins i could have in my pocket. Record thir value.
September 21, 2010

Trig
verify following trigonometric identities. 1/sec0tan0 = csc0 = sin0
August 24, 2010

chemistry
DeltaH=TdeltaS
August 2, 2010

Individual Income
19. Dan's taxable income falls in the 15% tax bracket. Included in his taxable income is $5,000 of ordinary dividends, of which $2,000 are qualified dividends. The amount of tax Dan will pay on his qualified dividends is: a. $300. b. $0. c. $250. d. $100. e. $200.
June 30, 2010

math
how many combinations of coins equal 2.00 when given 12 quarters, 10dime ,10 nickels and 20 pennies.
June 9, 2010

Math 116
yea sorry
June 6, 2010

Math 116
The lengths will have to be greater than 24 or 24<
June 6, 2010

math
What's that formula called?
June 6, 2010

math
Okay I got this question on a test. I am not sure what I am supposed to do here. Can you show me how I would go about solving this. A basketball player can jump 33in vertically. Find his hang time. Round to the nearest tenth. Thanks
June 6, 2010

math
what is 4j-3=5
June 4, 2010

rational expressions
1)Can z+6/z+1 be reduced any further? 2)Add and simplify (v/v^2+8v+16) + (4/v^2+7v+12) 3)For this second binomial do you change the the sign of the second term? Subtract and simplify (1-y/y-2) - (9y-8/2-y) 4)Solve (4/5)+(1/2)=(1/x) 5)(8/x)=(9/x)-(1/2)
May 31, 2010

math
1)Can z+6/z+1 be reduced any further? 2)Add and simplify v/v^2+8v+16 + 4/v^2+7v+12 3)For this second binomial do you change the the sign of the second term? Subtract and simplify 1-y/y-2 - 9y-8/2-y 4)Solve 4/5+1/2=1/x 5)8/x=9/x-1/2 Thanks!
May 31, 2010

introductory algebra
I had these problems on my test and for some reason got them wrong. Here are the problems: Solve: x-y=9 x+y=1 The test states that the answer is (5,-4) I've checked ,y work and used substitution to solve this and still get x=4, y=-5. The second problem is: Solve the system...
May 23, 2010

How Children Learn
. A Correct 2. C Correct 3. C Correct 4. A Correct 5. C Correct 6. A Correct 7. D Correct 8. C Correct 9. A Correct 10. C Correct 11. D Correct 12. B Correct 13. A Correct 14. A Correct 15. B Correct 16. C Correct 17. C Correct 18. B Correct 19. C Correct 20. A Correct
May 19, 2010

english
What does this mean? If you are home studying…I hope you’re at least doing so outside! I am foreign exchange and I do not understand this. Thank You.
May 4, 2010

Science
How is the kinetic-molecular theory related to specific heat, joules, and calories??
April 30, 2010

CHEMISTRYYY
this isnt the right way. i used this way and i got a different asnwer
April 26, 2010

reading/language please check
When is the best time to read review the discussion questions? A. Immediately after you have finished all of the reading. B. After you write your notes. C. Before you begin any detailed reading. D. At least 1 hour after your detailed reading.
April 16, 2010

chemistry
how to write a net ionic equation of CaS+CuCl2
April 16, 2010

IPC
IF THE SIDE OPPOSITE A 45 ANGLE IN A RIGHT TRIANGLE 12.5 METERS, HOW LONG IS THE ANGLE?(ROUND THE ANSWER TO THE NEAREST TENTH)
April 14, 2010

PHYSICS
The magnetic field inside an air-filled solenoid 39 cm long and 2.0 cm in diameter is 0.85 T. Approximately how much energy is stored in this field?
April 11, 2010

PHYSICS
What is the inductance L of a 0.40 m long air-filled coil 3.2 cm in diameter containing 10,000 loops?
April 11, 2010

PHYSICS
What is the inductance of a coil if the coil produces an emf of 8.20 V when the current in it changes from -28.0 mA to +31.0 mA in 45.5 ms?
April 11, 2010

PHYSICS
If the current in a 100 mH coil changes steadily from 25.0 A to 10.0 A in 375 ms, what is the magnitude of the induced emf?
April 11, 2010

Chemistry
No, it C BECAUSE THE ELEMENTS NEED TO BE IN THE MOS ESTABLE STATE C(S) AND O2(G)
April 7, 2010

PHYSICS
A 14 cm diameter circular loop of wire is placed in a 0.58 T magnetic field. (a) When the plane of the loop is perpendicular to the field lines, what is the magnetic flux through the loop? (b) The plane of the loop is rotated until it makes a 36° angle with the field lines...
April 3, 2010

PHYSICS
A 29.4 cm long solenoid 1.10 cm in diameter is to produce a field of 0.360 T at its center. How much current should the solenoid carry if it has 1000 turns of the wire?
April 3, 2010

physics
A thin 12 cm long solenoid has a total of 460 turns of wire and carries a current of 2.1 A. Calculate the magnitude of the field inside near the center.
April 3, 2010

10th grade
a
March 23, 2010

chemistry
what is the maximum number of grams of PH3 that can be formed when 6.2 g of phosphorus reacts with 4.0 g of hydrogen to form PH3
March 21, 2010

optics ray tracing
light travels in a straight line, why is this important for the technique of ray tracing?
March 21, 2010

Business
I need like an outline to help me write this...maybe even if it was started for me
March 9, 2010

Business
Prepare a 600 to 700 word analysis of the relationship between humans and time. Include a description of the historical development of the human ability to conceptualize and measure time. Also, examine why humans have a need to measure time, and describe how the ability to ...
March 9, 2010

science
does carbonation or amountof caffeine in a drink or liquid affect plant growth?
March 7, 2010

ur papa
pizza
March 1, 2010

Algebra with pizzazz
add the 7 to 17 4x>24 divide by 4 x>6
January 27, 2010

Calculus
A manufacturer sells a certain article to dealers at a rate of $20 each if less than 50 are ordered. If 50 or more are ordered(up to 600) the price per article is reduced at a rate of 2 cents times the number ordered. What size order will produce the maximum amount of money ...
January 27, 2010

Calculus
A manufacturer sells a certain article to dealers at a rate of $20 each if less than 50 are ordered. If 50 or more are ordered(up to 600) the price per article is reduced at a rate of 2 cents times the number ordered. What size order will produce the maximum amount of money ...
January 27, 2010

health
what a lymph node is
January 7, 2010

Physics
the temperature of ice according to our physics teacher is -5 degrees celcius
January 7, 2010

Physics
How many grams of ice must be added to 100 grams of water at 60 degrees so that its temperature drops to 20 degrees celcius? As far as i know I have to use: (Mass)*(specific heat of water) *(finaltemperature - initial temperature = ??
January 7, 2010

Chemistry
what is the density that has a mass of 77.0 g and a volume of 36 mL?
January 4, 2010

Chemistry
what is the density that has a mass of 77.0 g and a volume of 36 mL?
January 4, 2010

Math
What it 120+119+118+117+116...+2+1
December 27, 2009

Statistics
population
December 17, 2009

6th grade
At 36 degrees, how long will it take for a sheet of ice 5' x 5' 6" deep to melt?
December 16, 2009

6th grade
nation that conquered many areas of india
December 9, 2009

7th grade
what is the gcf of 35a^2 and 85ab
December 2, 2009

Statistics
List Six deceptive graphical techniques.
November 26, 2009

Statistics
List Six deceptive graphical techniques.
November 26, 2009

Statistics
List Six deceptive graphical techniques.
November 26, 2009

math
the answer is... do it urself so u can learn it !
November 26, 2009

algebra
what is 4 to 4th power and show the process?
November 10, 2009

Math/Biz Math
I am so lost. Did I answer these problems right? Bud Ray is the owner of an automatic car wash located in a busy side of town. He currently has all the business he can handle and then some. His business has grown steadily over the years. His current car wash equipment is in ...
November 9, 2009

Enchancing Children's Self-Esteem
. D Correct 2. C Correct 3. A Correct 4. B Correct 5. D Correct 6. C Correct 7. B Correct 8. C Correct 9. A Correct 10. B Correct 11. A Correct 12. B Correct 13. D Correct 14. D Correct 15. B Correct 16. C Correct 17. D Correct 18. B Correct 19. B Correct 20. A Correct
October 31, 2009

Physics
2.0 E2 J convert 10 kg to Newtons 10 kg = 98.0665 Newtons W = F(d) W = 98.0665 (2) W = 196.133 W = 2.0 E2 J when rounded 27J W = F (d) W = 9.0N (3.0m) W = 27J Time doesn't matter here
October 22, 2009

MATH PATTERNS
jhjewhjfkewbjfvklaefw
October 1, 2009

social studies
north America,south America and the island in the caeibbean sea are the major lands in the
September 24, 2009

social studies: geography
Great p Lains
September 13, 2009

social studies: geography
what feature makes up part of the us border with Canada?
September 13, 2009

Geometry
Can someone please kind enough to explain this questions for me. Thank you What are some examples of other important polyhedra? What characteristics help you determine whether a polyhedron is regular or irregular? How can you check for symmetry and rotational symmetry of ...
August 11, 2009

algebra 2
what is the proper thing to say when you introduce a hamburger?
June 25, 2009

BUSINESS
Question What are the differences between an internal proposal and an external proposal? Also I need to summarize why the two proposal types are different in terms of the following elements: Consider the following scenario: Management at your project management firm wants to ...
May 25, 2009

elementary
how becoming a scientist
May 10, 2009

Math
I have a graph which I need to find the equation of. It's an absolute value graph, the vertex/middle point is at (-2, 5) and 2 points that lie on the graph are (1,10) and (-5,10). It needs to be in 'y=' form. I'd appreciate it if you explained how to do find ...
April 10, 2009

Calc
i got 16, but i am not sure if i am right
April 2, 2009

Calc
Find the area of the region bounded by y=x^2 and y = -(x-4)^2 +4 and the lines y=0 and y=4.
April 2, 2009

Calc
lol yeah algebra, ok that's what I got, just making sure.
April 2, 2009

Calc
How do I solve for x in: y = -(x-4)^2 + 4
April 2, 2009

Algebra
thanks =D.
April 1, 2009

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