Thursday
January 29, 2015

Posts by Jay


Total # Posts: 1,140

Physics
I got a similar answer of 79.0 cm/s using the conservation of energy equation. U(i) + K(i) = U(f) + U(f) Thank you for the help. And sorry for asking this question. I didn't see the similar question when I searched mine in the search bar.
July 11, 2012

Physics
K is 5.3 N/m. Why are you using 4.6 N/m?
July 11, 2012

Physics
A 100-g block hangs from a spring with k = 5.3 N/m. At t = 0 s, the block is 20.0 cm below the equilibrium position and moving upward with a speed of 194 cm/s. What is the block's speed when the displacement from equilibrium is 31.5 cm?
July 11, 2012

math
-29 = -4 + 5u
July 10, 2012

algebra
If an electronic circuit experiences a loss of 3 decibels with an input power of 6 watts, what would its output power be, to the nearest watt?
July 1, 2012

math
How can i measure or get the correct size of a bicycle rim.
June 30, 2012

Physics
The Moon orbits the Earth at a distance of 3.85 x 108 m. Assume that this distance is between the centers of the Earth and the Moon and that the mass of the Earth is 5.98 x 1024 kg. Find the period for the Moon's motion around the Earth. Express the answer in days. The ...
June 25, 2012

math
could you please tell me how you got the answer reguarding the 2" pipe i would really appreciate it. Thanks
June 24, 2012

math
Ido not know how you got the ansmwer could you please explain.
June 24, 2012

math
A pipe is 2" outside diameter and it has 3/16" walls .What is the inside diameter,?
June 24, 2012

geometry
Can somebody help me with Proofs in Geometry Given:M<ABE=M<CBD
June 19, 2012

Physics
2. A body fired vertically up reaches a maximum height of 120 m. The location at which the kinetic energy is 75% of the potential energy is...
June 14, 2012

calculus (check my work please)
right, because my answer can be simplified into: sec^5(x)/5-sec^3(x)/3
June 7, 2012

calculus (check my work please)
I did, I got a completely different result. Also, SAY SOMETHING USEFUL NEXT TIME!!! tired of you spamming that stupid reply
June 7, 2012

calculus (check my work please)
Not sure if it is right, I have check with the answer in the book and a few integral calculators but they seem to get a different answer ∫ sec^3(x)tan^3(x) dx ∫ sec^3(x)tan(x)(sec^2(x)-1) dx ∫ tan(x)sec(x)[sec^4(x)-sec^2(x)] dx ∫ tan(x)sec(x)[(tan^2(x)+...
June 7, 2012

Integral Calculus
I figured it out @Ethan, you can't substitute because it is x^2 over(x^2+1)
May 24, 2012

Integral Calculus
great, I can find the steps and i have the answer already. i just don't understand the step to be made after (1/2)x^2*arctan(x)-1/2∫x^2/(x^2+1) dx
May 24, 2012

Integral Calculus
Trying to find ∫x*arctan(x)dx, but I can't figure out what do to after: (1/2)x^2*arctan(x)-1/2∫x^2/(x^2+1) dx
May 24, 2012

Math
Pair of functions fx=3x and g(x) =3x^2-2x+3 find the following (f◦g)(x=)
May 16, 2012

math
a cb radio station c is located 3 mi from the interstate highway h. the station has a range of 6.1 mi in all directions from the station. if the interstate is along a straight line, how many miles of highway are in the range of this staion?
May 15, 2012

physics
if you get really lazy you can always use calories (1 small calorie=the energy to increase 1 gram of water by 1 degree Celsius)
May 13, 2012

Computers
suppose to write a program for it? or what are you trying to do?
May 13, 2012

Math
5:15+12:00 (the 12 hours is added because it is PM) - 8:00 (the time he starts, because you don't want to include the time for 8 AM for that day)- 0:45 (he doesn't get paid for lunch)=8:30 (time he works for one day) 5:15+12:00-8:00-0:45=8:30 8:30 or 8.5 hours * 5 days...
May 12, 2012

MATH
3x-1=y slope: 3; Y intercept:-1 x-3=y slope: 1; Y intercept:-3 3x-8=y slope: 3; Y intercept:-8 y-2=3(x-4)-->y=3x-10 y-5=3/8(x-3)-->y=3/8x-49/8
May 12, 2012

Math
1= 1 week for 1 car also, the rest of the answers have bad form (magnitude then units usually)
May 12, 2012

precalculus algebra
3*20<125; you sold more then 20 tickets or didn't make $125
May 12, 2012

math
which product rule? there are a lot of rules by that name
May 12, 2012

physics
levers (need to know about torque), collisions (need to know about momentum/impulse), verifying that force=mass*acceleration those are three ideas off the top of my head, need to know the purpose of the project and how much physics you know to make a better list.
May 12, 2012

physics
not enough info for the first one, what angle is the hill at? also, need either a final or initial velocity of some kind second problem: what are the choices? it sounds like it is multiple choice
May 12, 2012

Physics
here is a diagram, with M1 being the larger mass and M2 being the smaller mass. delete all x's wxww.csupomona.exdu/~skboddeker/131/notes/pulleyblock.gif
May 11, 2012

Physics
A pair of masses are attached by a string that runs over a pulley. The larger mass is on a frictionless incline that makes an angle of 18 degree with the ground. the smaller mass is hanging in the air off the pulley. the larger mass is given an initial velocity of 1.7 m/s up ...
May 11, 2012

physics
a) mass*gravity*height= gravitational potential energy. 17*103*9.8= x Joules b) as the object falls the potential energy is converted to kinetic. so just before it hits the ground all of the potential energy has become kinetic.
May 11, 2012

Physics 6A
you need to add units to the measurements. Ill assume the following: 330 kilograms, 3.8 meters, 23 degrees. mass*gravity*amount of gravity working= 330*9.8*cos(90-23)=force or work of gravity if the man fights gravity the entire time then his force is equal and opposite to ...
May 11, 2012

physics....
impulse is Newtons* seconds say you have the forces 1N and 2N. if you apply the 1N to an object for say 10 seconds then the impulse is 10N*s. when you apply the 2N force, it would take 5 seconds to match the same impulse as the 1N. aka: if the smaller force is applied longer ...
May 10, 2012

english
present participial phrase
May 8, 2012

english
(three-act farce) and adjective clause
May 8, 2012

english
What type of clause or phrase is italicized in the sentence below? The play, a three-act farce, amused everyone. please help fast!!
May 8, 2012

math probability
a 3 section spinner which each outcome is not equally likely.if you spin the spinner once,what is the probability that it will stop on a?
May 7, 2012

MATH
You only add or subtract like terms.
May 2, 2012

Math-Algebra 1
1920/10 = 192 24*8= 192
May 2, 2012

Algebra
Write an equation in standard form (slope-intecept form) of the line passing through the pair of points (3,4) and (5,8) containing point (5,9) and parallel to the line.
May 1, 2012

Algebra
I am still having trouble solving this problem. Use the quadratic formula to solve this equation: 4k(k+13)=13
April 26, 2012

Algebra
sqrt(q^2+7q+6)-q-3=0
April 26, 2012

Algebra
Use the quadratic equation to solve the equation: 4k(k+13)=13
April 26, 2012

Algebra
Solve for "x" using the quadratic formula: X^2-4x-21=0
April 26, 2012

Algebra
3 divided by 5 times the square root of 5 + 3 times the square root of 2. (This problem is written as a fraction.)
April 25, 2012

Algebra
Square root of (q^2+7q+6) minus q minus 3=0. Minus 3 and minus q are not under he radical sign.
April 25, 2012

Algebra
12 times square root of (z-1)= 3 times the square root of (3z+1050)
April 25, 2012

Algebra
(8-i)^2(8+i)^2
April 24, 2012

Algebra
(8-i)^2(8+i)^2
April 24, 2012

Algebra
(6 times square root of 3 + square root of 5)(square root of 3 - 4 times the squae root of 5)
April 24, 2012

Algebra
Multiply: (6 times square of 5 + square root of 5)(square root of 3 - 4 times square of 5) Note: How do I type the symbol for square root?
April 22, 2012

Algebra
Simplify the root. The square root of (-x)^14. Why is the answer the absolute value x^7?
April 18, 2012

Health Science
Implementation of informatics has shown to be effective in many areas of health care. Perform a brief literature review and discuss one area that has shown significant savings in the operating budget.
April 16, 2012

economics
one of the things that works to make sure consumers keep getting better products at better prices is
April 15, 2012

math
is 32oz a half gallon
April 15, 2012

English
1. what sources should you include in your works cited list? a. all of the sources that you read whether you used them in the paper. b. only the sources that have a parenthetical citation in your paper. c. most of the sources that have a parenthetical citation in your paper. d...
April 8, 2012

Algebra 2
48
April 5, 2012

Algebra
(7/w+2)+(-8w-2/w^2+2w)-(6-w/w)
April 5, 2012

Algebra
y-(3y-7)/7 divided by(20/14)+5/2y
April 5, 2012

Algebra
Determine whether the equation represents direct, inverse,joint,or combined variation. y=31x/wz If it is combined, please explain to me.
April 4, 2012

Algebra
y-3y-7/7/20/14+5/2y
April 3, 2012

Science
d potential energy
April 2, 2012

algebra
Add or subtract as indicated. 5x/x+3+28/x-3-90/x^2-9
April 1, 2012

algebra
z varies directly as x^2. If z=36 when x=3,find zwhen x=4.
March 30, 2012

Math
if a rifleman averages 8 hits out of 10 shots at a target, what is the probability that he will hit the target in 3 out of 4 shots
March 29, 2012

Statistics
if a rifleman averages 8 hits out of 10 shots at a target, what is the probability that he will hit the target in 3 out of 4 shots
March 29, 2012

physics
The electromagnetic wave that delivers a cellular phone call to a car has a magnetic field with an rms value of 1.90 10-10 T. The wave passes perpendicularly through an open window, the area of which is 0.20 m2. How much energy does this wave carry through the window during a ...
March 27, 2012

Algebra
Problem: $6300 is invested, part of it at 12% and part of it at 9%. For a certain year, the total yield is $660.00. How much was invested at each year?
March 24, 2012

algebra
Question #1 The price of 7 citrons and 10 fragrant wood apples is 88 units. The price of 10 citrons and 7 fragrant wood apples is 82 units. Find the price of a citron and the price of a wood apple. I used 17x=170?????? Question #2 $6300 is invested, part of it at 12% and part ...
March 24, 2012

pre-algebra
3.5 yers
March 23, 2012

algebra
I do not understand this problem: Factor by grouping: 1-c+cy-y
March 22, 2012

physics
22.57 J
March 21, 2012

algebra
800 is 22% of what number
March 3, 2012

Health
Maintaining a healthy diet can protect you from? A. Alcohol abuse B. Drug abuse C. Sickle cell disease D. Some cancers
March 1, 2012

Human Service
when is it inappropriate to share a hunch? Why?
February 27, 2012

programming logic
The program will accept user input to store the student's first and last name . If the name is ZZZ, then the program will end. The program will accept: a text entry for the class number (e.g., CGS 1000, COP 1000, etc.) a numeric value for the class grade a value of ZZZ ...
February 20, 2012

algebra
Find A ∪ B. (Enter your answers as a comma-separated list.) A = {2, 4}, B = {0, 1, 2, 3, 4, 5}
February 16, 2012

science
heck yea
February 16, 2012

science
When girls get pregnant, how do they babies get defected?
February 16, 2012

algebra
Al has 76 nickels and dimes worth$5.55. How many of each coins does Al have?
February 15, 2012

statistics
How is the rejection region defined and how is that related to the z-score and the p value? When do you reject or fail to reject the null hypothesis? Why do you think statisticians are asked to complete hypothesis testing? Can you think of examples in courts, in medicine, or ...
February 14, 2012

physics
A 1 500-kg car rounds an unbanked curve with a radius of 52 m at a speed of 12 m/s. What minimum coefficient of friction must exist between the road and tires to prevent the car from slipping? (g = 9.8 m/s2)
February 9, 2012

statistics
Assume that a population is normally distributed with a mean of 100 and a standard deviation of 15. Would it be unusual for the mean of a sample of 3 to be 115 or more? Why or why not?
February 1, 2012

ecology
In what environments would you expect obligate homeotherms to have the most significant advantages, and in what environments might facultative homeotherms have an edge?
January 29, 2012

Managerial Economics
The demand function for a cola-type soft drink in general is Q = 20-2P, where Q stands for quantity and P stands for price. At which price would a change in price and quantity result in approximately no change in total revenue? Why?
January 28, 2012

statistics
250 out of 500 students is going to give you 0.5. After that you will need to multiply that number by 360. your equation will look something like this: 0.5 x 360 = 180 your welcome! :)
January 28, 2012

physics
A cat that has a mass of 6 kg climbs to the top of a tree that is 20 m high. How much potential energy does the cat have at the top of the tree?
January 26, 2012

British literature
the answer is NOT B. he's basically confessing to murdering his wife and destroying her happiness when she didn't follow his orders. knowing that, it rules out everything else but......
January 24, 2012

physics
a .300 kg baseball is thrown at a speed of 6.5m/s. the batter hits the ball and it flies into the outfield at a speed of 19.2 m/s. How much work is done into hitting the baseball
January 22, 2012

geometry
the coordinate of p are (-2,5) and the coordinates of q are (6,1). a.what is the slope of pq? b.what is the equation? c.what are the coordinates of the mp of pq? d. what is the eqquation of the perpendicular bisector of pq?
January 19, 2012

Finance
A bond that has a $1,000 par value (face value) and a contract interest rate of 11.9. The bonds have a current market value of $1,120 and will mature in 10 years. The firm's marginal tax is 34%. What is the cost of capital from this bond debt?
January 15, 2012

physics
1----------2 - - - - - - - - - - 3-----------4 Sorry this is a horrible square but I couldnt copy the image. The A is on corner 1 and the two charges are on corners 3 and 4.
January 12, 2012

physics
Two tiny objects with equal charges of 59.0 µC are placed at two corners of a square with sides of 0.355 m, as shown. How far above and to the left of the corner of the square labeled A would you place a third small object with the same charge so that the electric field ...
January 12, 2012

preap physics
In joules
January 11, 2012

preap physics
A 15.4kg block is dragged over a rough horizontal surface by a constant force 191N acting at an angle of 25.3 degrees above the horizontal. The block is displaced 80.4m and the coefficient of kinetic friction is. 2 A) find the magnitude of the work done by the force of ...
January 11, 2012

Science
If blue eyes are dominant to green eyes, and two parents have a 50% chance of producing offspring with green eyes. What must the genotypes and phenotypes be for the parents of the offspring. Complete a punnett square to answer this question.
January 11, 2012

math
array of stickers using the product of3 times 15
January 9, 2012

finance
14–1. (Defining capital structure weights) Templeton Extended Care Facilities, Inc. is considering the acquisition of a chain of cemeteries for $400 million. Since the primary asset of this business is real estate, Templeton’s management has determined that they will...
January 3, 2012

Beginner Chemistry!
5.460 x 10^4
December 19, 2011

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