Wednesday

October 26, 2016
Total # Posts: 704

**Physics**

A particle is moving along the x-axis subject to the potential energy function U(x) = a(1/x) + bx2 + cx – d, where a = 6.00 J m, b = 26.0 J/m2, c = 3.00 J/m, and d = 26.0 J. Determine the x-component of the net force on the particle at the coordinate x = 3.37 m. Not sure ...

*February 27, 2013*

**Physics**

Depending on the amount the mass is increased by, we can say that the force of the object is increase by x amount of mass. Example. If m2 = 3m1, a2 = a1 than F2=?F1 F2=m2a2 -> F2=3(m1)(a1) you see that (m1)(a1) is F1. In conclusion, F2 = 3F1.

*February 20, 2013*

**Physical Science**

Fnet(t) = m(t)a. YOu know the acceleration its a basic math question from here. a=7m/s/s m(t)=2100kg m(t)*a = 14,700N is the Force on the Truck

*February 20, 2013*

**Physical Science**

Fnet = ma a = Fnet/m

*February 20, 2013*

**Maths**

Solve the equation:a right pyramid with vertical height stand on rectangular base widith that measures 20cm by 14cm the hieght of the pyramid is 10cm calculate to 3 significant figure the length of the slant height , the surface area of the pyramid, volume of the pyramid

*February 18, 2013*

**Physics**

Proper design of automobile braking systems must account for heat buildup under heaving braking. Calculate the thermal energy dissipated from brakes in a 1360-kg car that descends a 13.5° hill. The car begins braking when its speed is 88 km/h and slows down to a speed of ...

*February 12, 2013*

**Biostats**

82-75= 7/4.8=1.45

*February 3, 2013*

**Physics**

A soccer ball is released from the top of a smooth incline. After 3.80 s the ball travels 9.1 m. One second later it has reached the bottom of the incline. Assume the ball's acceleration is constant and determine its value ( m/s2)

*January 31, 2013*

**CHM**

As the number of solute particles in a given volume of solution increase will: freezing point increase, vapor press decrease? or vice versa or boiling point increase, vapor pressure decrease? or vice versa?

*January 13, 2013*

**math**

How many years will it take to reach 18600 if Tina invests 1000 in an account that pays 6.5 percent interest?

*January 7, 2013*

**maths**

Prove Cos (x+60)= 2Sinx

*December 3, 2012*

**Physics**

He got 15/16 because you have to take the (-1/4*V1i)^2. You square the (-1/4) to get (1/16) and when you move it over to the other side, you will get m1v1i^2 - (1/16)m1v1i^2 = m2v2f

*November 9, 2012*

**english 1**

to help prevent pollution, people could walk, ride bikes, and use public transportation

*October 8, 2012*

**Physics**

1. On a spacecraft, two engines are turned on for 648 s at a moment when the velocity of the craft has x and y components of v0x = 4360 m/s and v0y = 6270 m/s. While the engines are ﬁring the craft undergoes a displacement that has components of x = 4.11 × 106 m ...

*October 1, 2012*

**math/ compounded**

Option 1 is worth = $500,000*(1+0.06/4)^(5*4) = $500,000*(1.015)^20 =$673,427.50 Option 2 is worth = $500,000 * (1.08)^5 = $734,664.04 Option 3 = 500,000 * (1 + (.145*10)) = $1,225,000 Even for 5 years, you get = 500,000 * (1 + (.145*5)) = $862,5000 The best option is Option 3

*September 29, 2012*

**Chemistry**

What does it mean if the percent of sulfate in a sample of alum is greater that the theoretical percent of sulfate in alum?

*September 24, 2012*

**science**

the pH of colorless solution is 3. find its [H+] and [OH-] cancentration

*September 17, 2012*

**Physics**

1. 2D motion. A cannon fires a ball with a velocity at 300 MPS. THe cannon has an angle of inclination of 50 degrees. The surface is flat. 1. What is the time of flight? 2. Where does it land? What is its maximum height? What is the velocity vector of the ball at impact in ...

*September 16, 2012*

**physics **

A person travels by car from one city to another with diﬀerent constant speeds between pair of cities. She drives for 31.5 min at 89.6 km/h, 11.8 min at 101.8 km/h, and 58.5 min at 36.4 km/h, and spends 24.8 min eating lunch and buying gas. Find the distance between the...

*September 2, 2012*

**math**

How do I convert 16ft in .58 sec to mph

*August 25, 2012*

**arithmetic**

find the value of each group of base ten blocks = 100 block = 10 small block = 1 how do you figure this out?

*August 22, 2012*

**math**

i have math and my teacher wrote 26,397 and want's me to write the number in expanded form. how do i do it?

*August 22, 2012*

**health**

im here for ashworth also

*August 11, 2012*

**math**

((4*4)+4)/4=5

*July 7, 2012*

**maths**

two 2 digit numbers reading across and two 2 digit numbers reading down

*July 1, 2012*

**business**

How important is accounting information to the decision making processes of a business

*June 5, 2012*

**psychology**

Hello, where can I look to find the answer for how are research methods Godly?

*June 3, 2012*

**physics honors**

Suppose that pure gold was to be made into a very long, thin wire for high-end stereo systems. (Gold is often used because it does not oxidize so it makes very good electrical contacts). If the gold wire was to have a radius of 0.01 cm, how long of a wire could you make from ...

*May 31, 2012*

**physics**

so do i still solve it the same way

*May 31, 2012*

**physics**

they wanted the answer in cm to ---------> cm. (1.00 oz = 28.35 g).

*May 31, 2012*

**ap calculus**

find the critical points, inflection points, the absolute minimum value of y, and the relative maximum points of y=x^4-3x^2+2

*May 29, 2012*

**religion**

Hello, for in the book of Phillipians in chapter 2 would it relate to the Ethical code of principal with psychologists under principle C integrity and for general principle would it be number 3 human relations thanks

*May 22, 2012*

**determining values of x**

Given the functions f(x)=sqrt[x] and g(x)=x+1, determine all possible values of x for which f(g(x)) = g(f(x)). Show steps please, thanks a lot!

*May 16, 2012*

**trig and combine function**

Suppose f(x)=cos x - sin x and g(x)=cos x + sin x. Explain why the graph of (fxg)(x) is equivalent to the graph of h(x)=cos x after it has been horizontally compressed by a factor of 1/2. Thanks so much...

*May 16, 2012*

**Religion**

Hello, for On the road to Emmaus in Luke 24: how would bias possibly played a role with the follower's. can you steer me in right direction. thanks

*May 11, 2012*

**Tulsa**

If the price at which x units can be sold is given by the equation p=15-4 ln x, approximate the marginal revenue when x=7.

*April 23, 2012*

**Physics**

Suppose that a 200g mass (0.20kg) is oscillating at the end of a spring upon a horizontal surface that is essentially friction-free. The spring can be both stretched and compressed and have a spring constant of 240N/m. It was originally stretched a distance of 12cm (0.12m) ...

*March 13, 2012*

**physics**

Calculate the resistance of a 900 watt toaster operating at 120 volts. a) R= 10 ohms b) R=120 ohms c) R= 16 ohms d) R=1.6 ohms

*March 12, 2012*

**Physics**

Sorry it is what is the "minimum" not maximum

*March 12, 2012*

**Physics**

What is the maximum equipment needed to determine the power dissipated in a resistor of unknown value? 1) a voltmeter, only 2) An ammeter only, 3) a voltmeter and an ammeter only 4) a voltmeter, an ammeter, and a stopwatch

*March 12, 2012*

**Geometry**

Calculate surface area and the volume of a box that is 3m by 2m by 7.5m Show me how to get the answer please.

*February 28, 2012*

**Humanities**

Quote at least two pairs of related lines from the Declaration of Independence (Reading 24.3) and from John Locke's Of Civil Government

*February 20, 2012*

**Math**

Find all real Solution: 2x^3-7x^2-98x-343

*February 8, 2012*

**math**

Write the following in terms of sin(θ) and cos(θ); then simplify if possible. sec(θ) / tan(θ) =

*January 30, 2012*

**TRIG **

Find the remaining trigonometric ratios of θ if sin(θ) is given and θ QI sin(θ)=7/sqrt 149 cos= tan= cot= csc= sec=

*January 27, 2012*

**math**

5/8's as a product of a whole number anda unit fraction

*January 17, 2012*

**Math**

I do not understand how to measure the volume of a star shape medallion. I think I would multiply all the stars on the medallion. Thanks for your help.

*January 16, 2012*

**Algebra II**

I'm not sure if this is even close to how I should solve ths Rewrite 9x^2 + y^2 + 36x-6y+36 = 0 9(x^2 + 4x+4) + y^2 - 6y+9 = -36 + 36 + 9 9(x+2)^2/9 + (y-3)^2/9 = 1 =(x+2)^2 + (y-3)^2/9 = 1

*January 9, 2012*

**phi103**

1. A conditional sentence with a false antecedent is always (Points : 1) true. false. Cannot be determined. not a sentence. 2. "Julie and Kurt got married and had a baby" is best symbolized as (Points : 1) M v B M & B M → B M ↔ B 3. Truth tables can ...

*December 19, 2011*

**science**

calculatetheresistanceinacircuitinwhicha9-voltbatteryproduces3amperes

*December 10, 2011*

**CHEMISTRY**

I'm just not sure how to apply it to this problem.

*December 9, 2011*

**CHEMISTRY**

I know this question is already on here but the answer wasn't helpful to me. Liquid Sodium can be used as a heat transfer fluid. Its vapor pressure is 40.0 torr at 633 C and 400.0 torr at 823 C. Calculate its heat of vaporization.

*December 9, 2011*

**CHEMISTRY**

That's exactly how it was worded. I searched online and couldn't find anything.

*December 9, 2011*

**CHEMISTRY**

What is the intermolecular force that exists between a magnesium ion and a hydrogen sulfide? A dipole dipole b london dispersion c ionic bond d ion dipole e ion ion

*December 9, 2011*

**Biology**

If an RR genotype is crossed with a Rr genotype, which color flowers would the offspring least likely have? a.) red b.)white I think it would be white, but I'm not sure...

*November 25, 2011*

**math**

An equation of the line in slope intercept form that passes through the point (-9, -1) and is perpendicular to the line y = 3x + 17? Please help...

*November 21, 2011*

**algebra**

Hi, I'm trying to learn logarithmic form and I'm kinda of stuck Write in exponential form: 1.log(3)6561=x 2.x^4 = 625 Thank you

*November 21, 2011*

**Algebra**

Hi, I'm trying to learn logarithmic form and I'm kinda of stuck Write in exponential form: 1.log(3)6561=x 2.x^4 = 625 Thank you

*November 21, 2011*

**Math**

input output 12 10 ? 16 32 ? 62 35 70 39 86 ? what's my rule?

*November 14, 2011*

**Calculus**

Mr. Cook was painting Arvada West High School, standing on top of a 25]foot ladder. Why? We will never know. However, he was horrified to find the ladder being pulled away by the same notorious student that threw a snowball at Mrs. Evans. The base of the ladder was ...

*November 6, 2011*

**Calculus**

Mr. Cook was painting Arvada West High School, standing on top of a 25]foot ladder. Why? We will never know. However, he was horrified to find the ladder being pulled away by the same notorious student that threw a snowball at Mrs. Evans. The base of the ladder was ...

*November 6, 2011*

**advanced math**

Suppose you have 168 meters of fencing with which to make two side-by-side rectangular enclosures against an existing wall. If the rectangular enclosures are adjacent and of the same depth, what is the maximum are that can be enclosed?

*November 3, 2011*

**Chemistry**

convert 548mL to cm3

*October 11, 2011*

**Mathematics**

If (a+b)squared = 361 and ab =-120, calculate the value of a squared + b squared

*October 11, 2011*

**Mathematics**

6+m/3=18 What does m equal.

*October 4, 2011*

**Introduction to Psychology**

I was right is was D.

*September 26, 2011*

**Introduction to Psychology**

Kevin and Cheryl has completed their first day of naturalistic obeservation of adolesents at the local hligh school. As they discussed their experiences during the day, they found that they were both concerned about the difference their presence in the classrooms made on ...

*September 26, 2011*

**Pre-Calc**

If someone could explain how to set up the TI-84 P;lus to graph polar coordinates (3,15degrees) then I'll use that as an example. I know it has to be in degrees and then the y= appears but what then?? Thank you

*September 24, 2011*

**Pre-Calc**

Can someone explain how to graph polar coordinates on a TI-84 Plus calculator-I can't find the directions anywhere Thank you

*September 24, 2011*

**Pre-Calc**

Can anyone direct me to learn more about polar coordinates. I'm in online college course and really am confused. In high school, I never heard of polar coordinates. Like they say is the following the graph of point (3,15) and show it on polar grid-I don't get it at all...

*September 24, 2011*

**math**

If arc BF = 45‹ and arc AE = 39‹, what is the measure of Ú1?

*September 19, 2011*

**Business**

Name a business that has demonstrated accountability to people, to its community, and to its environment

*August 22, 2011*

**Science**

Scientists performed an experiment to determine whether there is a connection between learning ability and food. They took two groups of 20 mice each, all from the same purebred strain. The mice were deprived of food for 3 days and then given a standard learning session in ...

*August 18, 2011*

**Ag econ**

How do you prove marginal profitability of implementing precision ag practices to a farm operation.

*August 3, 2011*

**Business Communication**

In which of the following situation would it be BEST to recast the situation as a positive message? A.When you want to maintain goodwill with the reader, because you still have to deal with each other. B. When there really is not a reason for the refusal. C. When you can offer...

*August 1, 2011*

**alegebra**

solve this system of equation using the substitution method. 6x+8y=72 2x+5y=45

*July 24, 2011*

**algebra II**

Solve using the quadratic formula: x^2 - 3x - 5 = 0

*July 3, 2011*

**algebra II**

Solve by completing the square: a^2 - 4a = -8

*July 3, 2011*

**grammar**

Thanks!

*July 1, 2011*

**grammar**

It is not used in a sentence. elizabethan drama- I need to tell if either word needs to be capitalized.

*July 1, 2011*

**grammar**

Elizabethan drama-Should drama be capitalized Martin Luther King Day-Shouldn't Day be capitalized because it is a holiday

*July 1, 2011*

**Physics**

Light is both a mechanical wave and a particle.

*June 26, 2011*

**Engineering Math**

solve the 1st differential equation: y1+4y=cos(x) with intial condition y(pie/3)=1

*June 24, 2011*

**Math Statistics**

(46,500 – 47,000)/[5500/sqrt(30)]=

*June 16, 2011*

**Statistics**

A group of scientists created 150 trials to measure whether electric shock treatment could cure paranoid delusions. Of these trials, 52 were successful. Find the margin of error E that corresponds to a 95% confidence level. The critical value for 95% confidence level is 1.96.

*June 15, 2011*

**Math**

30 x 20 x 10 doesn't fit the surface area

*May 30, 2011*

**Life orientation**

Life style disease is a result of an inappropriate relationship of people with their environment

*May 12, 2011*

**math**

Consider the function f(x) whose second derivative is f''(x) = 5 x + 6 \sin (x). If f(0) = 4 and f'(0) = 2, what is f(x)?

*April 6, 2011*

**physics-Momentum**

A Cadillac of mass 2210 kg going east collides with a Geo of mass 1240 kg headed north on a level highway. The cars remain tangled and slide to rest after traveling 25 m in a straight line at an angle of 20° north of east. The coefficient of kinetic friction for the tires ...

*March 29, 2011*

**Math**

A fence is to be built to enclose a rectangular area of 200 square feet. The fence along three sides is to be made of material that costs 3 dollars per foot, and the material for the fourth side costs 13 dollars per foot. Find the length L and the width W (with W less than or ...

*March 23, 2011*

**Finance**

Find the lump sum deposited today that will yield the same total amount as payments of $10,000 at the end of each year for 15 years at a rate of 4% compounded annually.

*March 21, 2011*

**chemistry**

With a half-life of 14.3 years, how long will it take for100 g of phosphorus32 to decay to 12.5 mg?

*March 14, 2011*

**Math**

One summer, Jared earned $26 each time he mowed the lawn. He mowed the lawn a total of 13 times that summer. He had to fix his lawn mower one time during the summer, which cost him $32.42. Which number sentence could be used to find M, Jared's profit for the summer ...

*March 13, 2011*

**Geometry**

The measure of the supplement of an angle is one fourth the measure of the angle. What is the measure of each angle?

*February 26, 2011*

**Chemistry**

nothing will happen.

*February 24, 2011*

**literature--Please help me!!!**

how does eudora welty use dialogue to establish characters?

*February 20, 2011*

**Chemistry**

The Ka value of nitrous acid, HNO2 , is 4.0 × 10¯4 . What is the equilibrium constant for the reaction; NO2¯ + H2O <-> HNO2 + OH¯ ?

*February 17, 2011*

**Chemistry**

The Ka value of nitrous acid, HNO2 , is 4.0 × 10¯4 . What is the equilibrium constant for the reaction; NO2¯ + H2O <-> HNO2 + OH¯ ?

*February 17, 2011*

**math**

my house payment is 800 dollars a month @ 5.5 % interest for 30 years at the end of 30 years ,how much would i pay ?

*February 16, 2011*

**math**

my house payment is 800 dollars a month @ 5.5 % interest for 30 years at the end of 30 years ,how much would i pay ?

*February 16, 2011*