Monday

September 1, 2014

September 1, 2014

Total # Posts: 6,214

**Physics **

I don't understand anything about the centripital force and torque please HELP me to understand hoe to solve problems relsted to this topics,
*August 29, 2011*

**physics**

a)s=vt so t=s/v t=18.3m/12.2ms=1.5s the same is for the other so t1=1.5s & t2=1.5s so t1-t2= 1.5s-1.5s=0
*August 29, 2011*

**Math**

For the question below can you please help explain why this survey question might lead to an erroneous conclusion thank you. SURVEY QUESTION: “Do you think that it is not important to give extra tutoring to students who are not failing?
*August 27, 2011*

**Math**

“Vitamin E is a proven antioxidant and may help in fighting cancer and heart disease.” Is there anything ambiguous about this claim? Can someone please help and give me a detailed answer for this problem Thank you.
*August 27, 2011*

**Calculus**

jk jk. dont quit
*August 27, 2011*

**Calculus**

you must be pretty damn stupid amanda. is suggest you quit school
*August 27, 2011*

**Statistics**

Transactional data can be used to partition a customer base into different ‘segments’ based on predominant purchasing patterns. Typical segments might be ‘convenience shoppers’ (customers who buy a lot of ready meals, pizzas, etc.), ‘cooking from ...
*August 26, 2011*

**math**

use the numbers 3,5,6,2,54, and 5 in that order to write an expression that has a value of 100
*August 24, 2011*

**physics**

A school bus takes 0.55 h to reach the school from your house. If the average velocity of the bus is 17.1 km/h to the east, what is the displacement?
*August 23, 2011*

**Calculus**

A manufacturer determines that the profit derived from selling x units of a certain item is given by: P = − 2x^2 +800x Find the marginal profit for a production of 20 units. Also, The demand function for a particular commodity is given by: p = 400− 4x . Find the ...
*August 23, 2011*

**6th gr,ade math**

5/20
*August 22, 2011*

**MATH**

Can anyone please help me with this? Can anyone please build or generate at least five Pythagorean Triples using one of the many formulas available online. Then After building the triples, verify each of them in the Pythagorean Theorem equation. Thank you so very much.
*August 19, 2011*

**math**

Give a number to the thousandths place that is greater than 7.2 but less than 7.3.
*August 15, 2011*

**math**

Give a number to the thousandths place that is greater than 7.2 but less than 7.3.
*August 15, 2011*

**Chem 121**

how do I calculate error analysis on my tritation expirement?
*August 15, 2011*

**Math**

Can you please help me select at least five numbers; 0 (zero), two even, and two odd numbers and do a simple substitution of number for variable in a formula. And can you explain each step and show the work on how you came up with the answer please thank you.
*August 14, 2011*

**Physics 1 (college)**

I dont understand where you got .1 and then -1 from. Can you explain that?
*August 8, 2011*

**Math**

Can you please explain step by step on how to do each of these two problems below? And then tell me whether it involves an arithmetic sequence or a geometric sequence I also need the work shown out for both problems thank you. 1). A person hired a firm to build a CB radio ...
*August 7, 2011*

**Math**

Can you please explain step by step on how to do each of these two problems below? And then tell me whether it involves an arithmetic sequence or a geometric sequence I also need to show the work on both problems thank you. Perform the indicated operations 1010 two × 101...
*August 7, 2011*

**Math**

Can you please explain step by step on how to do each of these two problems below? And then tell me whether it involves an arithmetic sequence or a geometric sequence I also need the work shown out on both problems thank you. Perform the indicated operations and reduce the ...
*August 7, 2011*

**math.**

If x>0 and x=5y, then square root of x^2-2xy+y^2 is..
*August 2, 2011*

**statistics**

Would it be unusual for the mean of a sample of 3 to be 115 or more?
*August 2, 2011*

**verbs**

What's your question..
*August 2, 2011*

**math**

if f(x)= 5x+7 and g(x)=x^2-2 write the functions a. (fxg)(x) b. f(g(x))
*August 1, 2011*

**calculus**

For any divergence especially with trig definitions in infinite series you will want to make sure that you can prove it to something. Comparison test or limit comparison works really well just remember that the sine function is only good from -1 to 1
*August 1, 2011*

**history**

What problems had to be overcome Africa's interior could be opened up to Westeren explorers? what helped to over come these problems?
*July 30, 2011*

**chem**

if the saturation of carbon is 12 and nitrogen is 6 what is the tempature of 200ml in 450 g containers in parts per million
*July 29, 2011*

**calculus**

How do I solve 3xy^3dy/dx=y^2x^2+5x^3y+y^4
*July 28, 2011*

**maths**

how do I solve 3xy^3dy/dx=y^2x^2+5x^3y+y^4
*July 28, 2011*

**Physics**

Assume this: The Earth rotates exactly around N and S poles, Earth is perfect sphere, and do not count the Earth's orbit around the sun. HINT: Ө = d/r, where Ө is in radians...and circumference = 2πr
*July 26, 2011*

**Algebra**

The percent decrease from 5 to 4 is how much less than the percent increase from 4 to 5? A. 0% B. 5% C. 15% D. 20% E. 25%
*July 26, 2011*

**Pre-Calc**

Vector v is (4√3,√3). Find the angle between v and i.
*July 25, 2011*

**Math**

No, again 168 is the total. So if you take 168-117(Which is the odds for winning) you get 51. So your odds against winning are 51/168
*July 22, 2011*

**Math**

17 out of 214. 79%. 17:214 is read like a fraction again. So if you divide 17/214 you get 79%. Not sure what exact answer you're looking for. But hopefully this can get you started.
*July 22, 2011*

**Math**

Again write it as a fraction... The total is 1 because you are looking at the chances of seeing 1 moose. Therefore to find the probability of not seeing a moose you need to take 1-.37 which is .63 so your probability of not seeing a moose is: .63/1
*July 22, 2011*

**Math**

You write it as a fraction. (How many students preferred supreme)/(Total college sophomores) 7/23 and that is already reduced.
*July 22, 2011*

**introduction to computers**

Which of the following search terms would direct terms would direct search engine to find pages about the windows vista operating system? 1"windows vista"2windows vista 3"windows""vista"4 "windows" vista
*July 19, 2011*

**criminal similation**

what is criminal similation
*July 18, 2011*

**math**

Given the funtion G(t) = t2 - 7t + 5, evaluate G(-1+h)-G(-1)/h
*July 16, 2011*

**Math: Parabola, Vertex**

Find the vertex of the parabola associated with the quadratic function. f(x)= -1/7x^2 - 2/11x + 1/121 (h,k)= What is the vertex of this quadratic function?
*July 13, 2011*

**statistics**

A bus company official wanted to estimate the mean time for the trip between two cities. A random sample of such trips gave a mean of 152 minutes and a standard deviation of 12 minutes. Construct a 98% confidence interval for the population mean time.
*July 9, 2011*

**Tamucc**

A 51kg object connected to a spring of 31N/m spring constant oscillates on a horizontal, frictionless surface with amplitude of 5cm. Find the speed of the object when when its position is 3cm.
*July 7, 2011*

**physics**

the acceleration is not right. you need to use this equation: Xf=Xi+Vi*t+(1/2)a*t^2 Xi=0,Vi=0,t=1.4,Xf=1,a=? 1=0+0(1.4)+(1/2)a(1.4^2) 1(2)= a(1.96) 2/1.96= a 1.0204 = a Then you follow the rest of the equation T = m(g+a)
*July 3, 2011*

**physics**

A block of mass 35 kg moves on the horizontal surface. If initially at rest whwat is the speed of the block after moving a distance of 6m when G=32?
*July 3, 2011*

**Trigonometric Substitution**

Trigonometric Substitution a. Explain why the substitution x = asin(Theta) guarantees that cos(Theta) is greater than or equal to 0 . b. What sort of restriction must we put on x and a so that the substitution x = asec(Theta)will guarantee that tan(Theta) is greater than or ...
*June 28, 2011*

**algebra**

Describe in your own words how to solve a linear equation using the equality properties. Demonstrate the process with an example. Next, replace the equal sign in your example with an inequality by using the less than or greater than sign. Then solve the inequality.
*June 27, 2011*

**Spainish**

What is the correct answer to the question: ¿Qué haces los sábados?
*June 23, 2011*

**geometry**

Solve the following equation for x 3x + 23 = 7
*June 22, 2011*

**calculus ( related rates )**

a paper cup in the shape of a cone has a diameter of 10cm across the top, and is 8cm deep. if the cup is leaking out the bottom at 2pi cm^3/min, at what rate is thet area of the water surface ( only the top surface of the water) changing, when the cup has a the water depth of...
*June 22, 2011*

**Physical Science 2**

Given that iron has a density of 7.87 g/cm3, calculate the volumeof 100 g of iron and 50 g of iron
*June 21, 2011*

**Chemistry**

The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN) has an absorbance of 0.500. If a trial's absorbance is measured to be 0.310 and its initial concentration of SCN– was 0.0010 M, the equilibrium ...
*June 20, 2011*

**CIS 115**

There are three seating categories at a stadium. For a softball game, Class A # seats cost $15, Class B cost $12. and Class C seats cost $9. Design a modular # program that asks how many tickets for each class of seats were sold, and then # displays the amount of income ...
*June 20, 2011*

**English**

Can you identify key qualities of drama and poetry which emphasize their performative qualities.
*June 16, 2011*

**Physics**

Two 0.33 kg blocks are attached to a 1.62m long string such that the lengths of the three string segments are equal. The ends of the string are attached to the ceiling at points separated by 1m. Each segment is 0.54m long. What is the tension in the horizontal segment. Answer ...
*June 16, 2011*

**financial management**

The HighT Company is a manufacturer of electronic products. The company is preparing a financial plan for the coming year and has the following independent projects under consideration: Project Initial investment ($ millions) Internal rate of return (%) A 220 20 B 380 11 C 300...
*June 16, 2011*

**English**

Can you help me summarize the major similarities and differences between the forms of the drama " Riders to The Sea",The poem " We Real Cool",and the short story "The Secret Life of Walter Mitty" and help me with at least one textual example of ...
*June 15, 2011*

**English**

How is the more direct performative aspect of drama and/or poetry reflected in these forms? structure, language, technique, and style
*June 15, 2011*

**science**

Is an icing propane regulator concidered an endothermic reaction?
*June 15, 2011*

**algebra**

find the equation of the perpendicular line to y=1/2x+4 and passing through the point (1,-2) PLEASE HELP :)
*June 12, 2011*

**Physics**

A concave mirror is constructed so that a man at a distance of 26 from the mirror sees his image magnified 1.5 times. What is the radius of curvature of the mirror?
*June 12, 2011*

**Physics**

In the photoelectric effect, what happens to the stopping voltage when the light frequency is decreased?
*June 11, 2011*

**Chemestry**

Also please i'd really appreciate if someone could explain me also how to do it.. like from step 1 to end ~ Thanks.. @@..
*June 10, 2011*

**Chemestry**

The solubility product of copper(II) iodate, Cu(IO3)2, is 4 x 10-9 mol3 dm-9 at 25 °C. What is the solubility of copper(II) iodate in g dm-3? A 1.85 × 10-2 B 4.14 × 10-1 C 5.21 × 10-1 D 6.56 × 10
*June 10, 2011*

**physics (simple question...need help pls!)**

I Know, I did read it...But i am not provided with an answer choice of both. I am wondering, must the electron be moving in a straight line?
*June 7, 2011*

**physics (simple question...need help pls!)**

The magnetic field is generated by: A) an electron moving at constant speed in a straight line B) a proton moving in a circle C)a neutron moving in a circle D) none
*June 7, 2011*

**Physics**

Use Kirchhoff's junction theorem to explain why the total equivalent resistance of a circuit is reduced, not increased, by connecting a second resistor in parallel to another resistor.
*June 5, 2011*

**Physics**

By our sign conventions, if a battery is traversed in the actual direction of the current in it, what can you say about the sign of the change in electric potential (the battery’s terminal voltage)?
*June 5, 2011*

**Physics**

A platinum wire is connected to a battery.If the temperature increases, will the current in the wire increase, remain the same, or decrease?
*June 5, 2011*

**Physics**

To move 8.0 of charge from one electrode to the other, a 12- battery must do how much work?
*June 4, 2011*

**propability**

In basketball, Nicole makes 4 baskets for every 10 shots. If she takes 3 shots, what is the probability that exactly 2 of them will be baskets?
*June 1, 2011*

**Political Science**

Can anyone help me connect how the movie Robocop connects to Fascism?
*June 1, 2011*

**Geometry**

The surface area of acone with height 15 cm is 500π square cm. Find the radius of the cone. Round your answer to two decimal places.
*June 1, 2011*

**Socials Studies (URGENT)**

What does it mean by "influenced international relations"
*June 1, 2011*

**Socials Studies (URGENT)**

1. Why did Canada go to war in Korea and why was this war significant for Canada and the UN? Went to Korea to aid the south against the north from communism. (Don't know why it was significant. Any help?) 2. Describe two instances which Canada influenced international ...
*June 1, 2011*

**GMAT Algebra (NO CALC)**

Thank you, my mistake on mixing up the answers when typing. I get number two now. But on number one, how do you get to =√(64*5+64*4) and then do you combine 64s for =√(64*(5+4)) thank you so much
*May 31, 2011*

**GMAT Algebra (NO CALC)**

It's been a few years since I've done algebra, and many more since we've been expected to do it without a calculator like the GMAT rules state. Please help me figure out these two problems without the use of a calculator. 1. __________________ √(16)(20) + (8...
*May 31, 2011*

**science**

so it would most definitely have to be 5. microorganisms. final answer! lol
*May 30, 2011*

**science**

if removed from the life cycle, which of the following would have the greatest impact on the productivity of lawns. 1. robins 2. moles 3. toadstools 4. dandelions 5. microrganisms i think 4 b/c of the seedd that are easily blown away in the wind to regerminate
*May 30, 2011*

**Math 100p**

78 students 10 of them are freshmen what fraction of the class are freshman
*May 28, 2011*

**maths**

the price of meat increase from 110 to159 what percentage increase
*May 28, 2011*

**trig**

sec(90degrees -theta)
*May 27, 2011*

**Science**

A researcher is gathering data from four geographical areas designated: South=1;North=2; East=3; West=4. The geographical regions represents a. categorical data b. quantitative data c. directional data d. either quantitative or categorical data
*May 27, 2011*

**business**

180 Flip - a 180 degree boardslide varial kickflip 360 Flip – A 360 degree boardslide varial kickflip 50-50 – both trucks grinding on an object 5-0 – only the back truck grinding on an object Backside – turns or rotations in the direction your toes point ...
*May 27, 2011*

**chemistry**

A furnace that provides heat by burning methane gas must have the correct mixture of air and fuel to operate efficiently. What is the mole ratio of air to methane gas in the combustion of methane? Hint: Air is 20% oxygen.
*May 27, 2011*

**chemistry**

If the gas could took a hemispherical shape, what circular surface area would the gas cover? chemistry
*May 26, 2011*

**Chemistry**

phosgene an equilibrium reaction is the formation of phosgene an equilibrium reaction? how can you tell
*May 25, 2011*

**science**

IN SOLID LIQUID WHAT DO NOT MATTER
*May 21, 2011*

**math**

factor the following trinomail w^18-9w^9y^5+14y^10
*May 18, 2011*

**physics**

A particle moves along the x axis. It is initially at the position 0.280 m, moving with velocity 0.080 m/s and acceleration -0.240 m/s2. Suppose it moves with constant acceleration for 3.10 s. (a) Find the position of the particle after this time. (b) Find its velocity at the ...
*May 18, 2011*

**geometry**

please help me?
*May 17, 2011*

**geometry**

how long are the congruent legs of isosceles triangle if its base and altitude to the base are 12cm and 8 cm respectively?
*May 17, 2011*

**math**

thanks
*May 17, 2011*

**math**

square root of 80?
*May 17, 2011*

**Calculus**

An isosceles triangle has perimeter 64m. Find the dimensions of this triangle that make its area a maximum
*May 17, 2011*

**chem**

what is the total mass of rn-222 remaining in an original 160g sample after 19.1 days? 1 2.5g 2 5.0 g 3 10g 4 20g how do you do this ?
*May 16, 2011*

**math**

Explain why the equation y=x squared can have two possible values of x for every value of y.
*May 16, 2011*

**math**

What would the future value of $6.5million dollars be after 5 years at 1.2% interest?
*May 16, 2011*

**Cost Analysis**

Does indirect costs often depend on some or all of the direct costs? How do we make that call.
*May 16, 2011*

**Physics**

i . imgur . com/Ki7wM.jpg
*May 16, 2011*

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