Tuesday

May 3, 2016
Total # Posts: 2,124

**Physics**

A 10kg mass is located at the (1.00m)i + (2.00m)j + (2.00m)k. A 5kg mass is located at (-1.00m)i + (1.00m)j + (1.00m)k. (A) Determine the moment of inertia of this system about an axis through the origin parallel to the x-axis. (B) Determine the moment of inertia of this ...
*November 29, 2014*

**Brief Calculus**

Find the area of the indicated region. We suggest you graph the curves to check whether one is above the other or whether they cross, and that you use technology to check your answer. (Round your answer to four significant digits.) Enclosed by y = e^x, y = 2x + 1, x = −2...
*November 25, 2014*

**Brief Calculus**

Find the area of the indicated region. We suggest you graph the curves to check whether one is above the other or whether they cross, and that you use technology to check your answer. Between y = −x and y = −x^3 for x in [−1, 1]
*November 24, 2014*

**Chemistry: Sigma & Pi bonds**

How many sigma bonds and pi bonds are there in each of the following: CH2Cl2 C2H3Cl C5H6 C6N4
*November 19, 2014*

**english**

need help on writing science fiction short story?
*November 18, 2014*

**math**

I don't think my first response went thru...so reposting! Thank You Ms. Sue, for the answer to cubic inches (11/16/14). It also made me realize that I skipped the step of multiplying the dimensions by each other.
*November 18, 2014*

**algebra 1**

cube root of (-64x^8y^5) Is it -8x^2y times the cube of y^2?
*November 18, 2014*

**algebra 1**

cube root of (-64x^8y^5)
*November 18, 2014*

**GEOMETRY**

the coordinates of point T are given. The midpoint of ST is (5,-8). Find the coordinates of point S. 18) T(10,18)
*November 18, 2014*

**math**

Thank You Ms. Sue, for the answer to cubic inches. It also made me realize that I skipped the step of multiplying the dimensions by each other.
*November 16, 2014*

**math**

how many cubic inches in 7'8"L, 12'2"W, 10'1" tall? please show how you get to the answer. I added up the feet (7+12+10=29 ft) and multiplied by 12 inches (29x12=348 in), then added on the remaining inches (8+2+1=11, 348+11) to come up with an answer...
*November 16, 2014*

**Business Law**

Two brothers, Sam and Jim, were fighting over the division of their ancestral property. After ten years of legal battle, a frustrated Sam contacted a powerful politician who subjected Jim to extreme duress in order to make him sign a contract of assent in favor of Sam. When ...
*November 15, 2014*

**physics**

0.4712
*November 14, 2014*

**Physics**

A 4 kg mass and a 9 kg mass are being held at rest against a compressed spring on a frictionless surface. When the masses are released, the 4 kg mass moves to the east with a speed of 2m/s. What is the velocity of the 9 kg after the are released?
*November 12, 2014*

**question**

Mini Makers, a small manufacturer of action figures, is formulating a budget for next year's promotional activities. The company decides to budget $50,000 for promotional expenses (an amount equal to its nearest competitor's allotment.) Mini Makers is using the ____ ...
*November 10, 2014*

**Chemistry**

Thank You!
*November 10, 2014*

**Chemistry**

If a balloon containing 1000 L of gas at 50 degrees Celsius and 101.3 kPa rises to an altitude where the pressure is 27.5 kPa and the temperature is 10 degrees Celsius, its volume there is?
*November 10, 2014*

**Calculus**

Hello. I have a few questions from my study guide, that I need to know to study for my test. 1) x^(2/3)*((5/2)-(x) a) determine the ordered pairs of the local extrema of the function. Use the second derivative test. B) determine the ordered pairs of all inflection points of ...
*November 10, 2014*

**Physics**

A 4 kg mass and a 9 kg mass are being held at rest against a compressed spring on a frictionless surface. When the masses are released, the 4 kg mass moves to the east with a speed of 2m/s. What is the velocity of the 9 kg after the are released?
*November 9, 2014*

**Goverment**

If you could get the government to implement one policy what would it be? Can't be marijuana legalization.
*November 9, 2014*

**Physics**

A target lies flat on the ground 4 m from the side of a building that is 10 m tall, as shown below. The acceleration of gravity is 10 m/s2 . Air resistance is negligible. A student rolls a 4 kg ball off the horizontal roof of the building in the direction of the target. The ...
*November 7, 2014*

**Math**

Nathan is designing a box to keep his pet newt in. To make the box, he’s going to start with a solid rectangle and cut squares with sides x cm in length from each corner, as shown in the picture below. The dimensions of the of the solid rectangle are 51 cm by 45 cm. The ...
*October 30, 2014*

**Business**

1.The owners of Brownfield Machinery, brothers George and Robb, now in their late 50s, have decided to sell the business. No one else in the family is interested in taking over the business. Brownfield machinery has 11 employees and sales of $2.5 million in 2012.George and ...
*October 27, 2014*

**Business**

1. After operating for 10 years, Zipcar, earlier this year (2013), was bought for $500 million by Avis, a leader in the car rental industry. With the acquisition of Zipcar, Avis will now surpass its direct competitors, Hertz and Enterprise.The deal is expected to be finalized ...
*October 27, 2014*

**Chemistry**

what mass of precipitate will form if 1.5L of concentrated pb(clo3)2 is mixed with .55L of.190 M NaI
*October 26, 2014*

**Math**

Thanks for the help.
*October 25, 2014*

**Math**

Simplfy the following expression - 3x + 5x + y+y+y I think the answer is 8x + 3y Would I be right? Thank You
*October 25, 2014*

**statistics**

A professor is interested in determining whether assigning mandatory homework affects students’ grades. He is currently teaching two sections of the same class; in one class, he assigns mandatory homework problems, while in the second class, he just recommends homework ...
*October 24, 2014*

**statistics**

A health psychologist, who is interested in childhood obesity, thinks that there may be a relationship between daily television viewing and eating habits. Data is collected from 500 children; for each child, information is collected on the number of hours of daily television ...
*October 24, 2014*

**statistics**

Researchers investigated the effects of encoding conditions on subsequent memory for a list of words. Participants were assigned to one of three encoding conditions: 1) saw list of nouns they were asked to remember (word alone condition), 2) list of words was accompanied by a ...
*October 24, 2014*

**physics**

A 1075 kg van, stopped at a traffic light, is hit directly in the rear by a 705 kg car traveling with a velocity of +2.06 m/s. Assume that the transmission of the van is in neutral, the brakes are not being applied, and the collision is elastic. What is the final velocity of ...
*October 23, 2014*

**Math help**

Please answer this 1 question!! 1.Which could be the name of a point? A. EF B. k C. Q D. MN
*October 21, 2014*

**Chemistry**

Consider the following reaction. 2 HCl(aq) + Ba(OH)2(aq) BaCl2(aq) + 2 H2O(l) ΔH = -118 kJ Calculate the heat when 114.8 mL of 0.500 M HCl is mixed with 300.0 mL of 0.400 M Ba(OH)2. Assuming that the temperature of both solutions was initially 25.0°C and that the ...
*October 19, 2014*

**Physics**

A bullet is fired from a rifle that is held 2.5 m above the ground in a horizontal position. The initial speed of the bullet is 1450 m/s. Find: (a) the time it takes for the bullet to strike the ground and (b) the horizontal distance traveled by the bullet.
*October 17, 2014*

**Math 116**

Well, you could say: since every square is a rectangle 'because it is a quadrilateral with all four angles right angles,' therefore the area didn't change.
*October 14, 2014*

**Math**

hint exterior angle is 360, minus 120 subtract total degrees of triangle
*October 14, 2014*

**c programming**

string[] dDate = dob.Split('/'); string dDay = dDate[0]; string dMonth = dDate[1]; string dYear = dDate[2]; if (Convert.ToInt32(dDay) > 01) { if (Convert.ToInt32(dMonth) == 01 || Convert.ToInt32(dMonth) == 03 || Convert.ToInt32(dMonth) == 05 || Convert.ToInt32(...
*October 14, 2014*

**Chem**

If not all the alum dissolves in the water before adding the Ba(NO3)2 solution, what effect will this have on the sulfate percent error determination?
*October 12, 2014*

**Chemistry**

How much heat would you need to melt 20.0 L of ice that had frozen on a fruit tree.
*October 11, 2014*

**math**

2 times
*October 11, 2014*

**math physics**

you forgot gravity
*October 9, 2014*

**@someone who can show me how to do this**

*infinite
*October 9, 2014*

**@someone who can show me how to do this**

infinate if x=1, then 6(1)+y=-3 6+y=-3 move the six y=-3+(-6) y=-9 or if x=-2, then 6(-2)+y=-3 -12+y=-3 subtract the twelve and add to the other side y=-3+(--12) two neg = positive thus y=-3 + 12 y=9
*October 9, 2014*

**physics**

5ms+16=21ms initial velocity (io) the delta v(t)=(ending velocity-io)/total deceleration time = (t)f/s^2 Thus, change in velocity = a t 0-21 = (t)f/s^2 second to top = t and therefore: d = Vi t + (1/2) a t^2
*October 9, 2014*

**chemistry**

First, find out how many moles of hydrogen there are Then, use Avagadro's Constant to find out how many atoms there are.
*October 9, 2014*

**economics**

ps is the difference between the amount that producers actually receive and the minimum amount that they would have to receive in order to supply the given level of output. On a graph, ps can be shown as the area above the supply curve and below the prevailing market price.
*October 9, 2014*

**chemistry**

the actual mass (g) = Number of moles x Molar mass, or m = n x M Number of moles of solute = Concentration (mol. L) x Volume of solution (liters) -1 or n = C x V
*October 9, 2014*

**economics**

that should have been answered in your other question
*October 9, 2014*

**Chem 30 Thermodynamics**

your temperature increase -or decrease- is given by the specific heat (S) of the object. (s)pecific heat = (new temp)/mass*change in temp. or if youre crazy, calculate the actual change in temp = heat added/(mass x specific heat) and compare it to actual (known) heat capacity ...
*October 9, 2014*

**math**

Trick question...you have 9 blocks!
*October 9, 2014*

**physics**

Use the third equation of motion velocity to displacement Your initial velocity is 15m/s Your final velocity is 0m/s displacement is 0m substitute the values and solve time
*October 9, 2014*

**physics**

If you don't have laminar flow, then you need to figure Quadratic Drag, drag force is proportional to the square of velocity and to the cross-sectional area of the object. For which you'll need to id the correct Reynolds Number
*October 9, 2014*

**physics**

given laminar flow, the drag force is proportional to the radius of the sphere and to its velocity. Double the radius, double the drag force. Double the velocity, double the drag force. This is known as Stokes Drag
*October 9, 2014*

**physics**

Work=mgh
*October 9, 2014*

**pre calculus**

cscB - sinB = 1/sinB - sinB = (1 - sinB*sinB)/sinB = (1 - sin^2B)/sinB = cos^2B/sinB = cosB*(cosB/sinB) = cosB(cotB)
*October 9, 2014*

**math**

6500-2500=4000 4000/2=2000 2500+2000=4500 or 6500-2000=4500
*October 9, 2014*

**Abnormal Psychology**

youth/adults
*October 9, 2014*

**math**

a total of 4 km in one hr. if she did at the same rate that would be 4 kph Time=distance/walk speed + distance/run speed (ie. walk * 2) T(x)=D/X + D/X*2
*October 9, 2014*

**computer science programming**

def sum(number): # we are defining a function a = 0 #defines a = 0 becuase we start at 0 in python sum=0 # defines sum at zero because we start at 0 while a<checked_input: #check everytime if the a is redefined if it still is true sum = sum + (a+1)#combination of this line...
*October 9, 2014*

**computer science programming**

what language?
*October 9, 2014*

**3rd grade math**

35/5=7
*October 9, 2014*

**Econ**

Since quasilnear preferences is a special case of a utility function Then... u(x,y) = v(x) + y Taking the derivative and setting to zero, a condition for maximizing utility is v’(x) - p = 0 or p(x) = v’(x) p(x) vs x as inv demand function
*October 9, 2014*

**Physics**

Horizontal direction : IF angle is measured from y axis (vertical line) -> a(horizontal) = Fsin(32)/m IF angle is measured from horizontal -> a(horizontal) = Fcos(32)/m Vertical direction: [ here positive a means acceleration down, negative a means up] IF angle is ...
*October 9, 2014*

**physics**

The Temperature Coefficient of Copper (near room temperature) is +0.393 % per o C. This means if the temperature increases 1o C the resistance will increase 0.393%. does that help?
*October 9, 2014*

**Physics**

9.8 ballM/s^2
*October 8, 2014*

**Math: ALGEBRA**

How to solve this??? Solve for x. a+b= a+xy Solve for w. 2w+2h+L=p Solve for r. r(s+t)=u
*October 8, 2014*

**Math: ALGEBRA**

Omg thanks herp_derp
*October 8, 2014*

**Math: ALGEBRA**

How to solve this??? -1-8(x+12)> -44-8x -4(-12v-9)+6(-6+5v)> -4v+12v
*October 8, 2014*

**math plz help**

a
*October 8, 2014*

**CHEM 111**

There are rules governing when a double displacement reaction actually takes place. Mixing these two solutions results only in a solution containing a mixture of Na+, NH4+ PO4 3- and Cl- ions. There is no reaction product. IE. the net ionic equation. This is not possible ...
*October 8, 2014*

**CHEM 111**

no reaction product
*October 8, 2014*

**finance**

interest rates dropping at 6% a year for 10 years?
*October 8, 2014*

**math**

divide by .66
*October 8, 2014*

**algebra**

50/3.6=13.8 lb
*October 8, 2014*

**Science 8**

2nd llaw: For example, you may realize, when looking for a car that the miles per gallon of a sports utility vehicle is always lower than that of a standard car. The reason behind this is explained in Newton’s Second Law. The mass of a sports utility vehicle is much ...
*October 8, 2014*

**Finance**

sorry about that, if the contract period is 12 months or less in duration, or if the contract produces a single outcome it's based on annual funding...otherwise incremental funding so A
*October 8, 2014*

**Finance**

appropriations are subject to the Annual Funding Policy...so B
*October 8, 2014*

**Science**

metals/ceramics
*October 8, 2014*

**physics**

4π²R³ = T²GM and V²R = GM, where R = radius of orbit in metres, T = orbital period in seconds, V = orbital speed in m/s, G = gravitational constant ≈ 6.673×10−11 Nm²/kg², M = mass of Earth ≈ 5.98×1024 kg
*October 7, 2014*

**science**

nebular aggregation
*October 7, 2014*

**science 1 question**

last one is not significant, as 0 add's nothing to the data
*October 7, 2014*

**science 1 question**

343.2
*October 7, 2014*

**SS**

island/continent, desert/ocean, mountain/canyon
*October 7, 2014*

**Physics**

no takers?
*October 7, 2014*

**Physics**

also, any ideas of finding the exact gravitational force / gravitational acceleration data for my location?
*October 7, 2014*

**Physics **

I need to determine maximum tension/down force with a pendulum. I need to use the lightest string possible to: -support a 16kg bob, with -a velocity of 4m/s -with a swing radius of 2m -at it's equilibrium (ie 0 degrees) -given standard gravity. using T=m(V^2/r)+(g*cos(x)) ...
*October 7, 2014*

**geometry**

For every 10 yards on a football field, there is a boldly marked line labeled with the amount of yards. There are two parallel sidelines on each side of the field. If the 50 yard line is perpendicular to one of the sidelines, what is its relationship to the other sideline?
*October 2, 2014*

**CHECK PLEASE**

-_-
*September 30, 2014*

**CHECK PLEASE**

Find the best word to complete the sentence. 1. specter 2. specimens 3. reiterate 4. refuted 5. vigilant 1. Find the best word to complete the sentence. In Charles Dickens's A Christmas Carol, the ___ of Jacob Marley returns from the grave to haunt his business partner, ...
*September 30, 2014*

**History**

prophets
*September 25, 2014*

**statistics**

Slf-Esteem Scoresdepression Scores Mean 3.43 15.78 StrdDev 0.75 10.34 13. The above chart contains the means and standard deviations for self-esteem scores and depression scores. Using this information and the most likely correlation coefficient obtained in Question 12 (-.76...
*September 25, 2014*

**CHECK MY ANSWERS PLEASEEE**

Please and thank you :D 1.A 2.B 3.B 4.B 5.B 6.C 7.C 8.B and C 9.D 10.B 1.Who is most likely to study written records? A.historians B.archaeologists C.geologists 2.Which is a primary way an archaeologist would decide where a temple stood? A.evaluating clues on clay tablets B....
*September 25, 2014*

**Math-calculus**

At a certain point on the beach, a post sticks out of the sand, it's top being 76 cm above the beach. The depth of the water at the post varies sinusoidally with time due to the motion of the tides. The depth d is modeled by the equation d=40+60cos(PI/2(t-2)) where t is ...
*September 24, 2014*

**HELP**

Shane's seats at the concert were so far from the stage that he could not ____________ who was the lead singer and who was the guitarist
*September 23, 2014*

**CHECK PLEASE**

11.abhor : detest 12.infraction 13.resolute 14.infringe 15.abound 11.Find the pair of words that has the same kind of relationship as the numbered pair. abscond : flee :: A. ascertain : forget B. concise : cut C. discern : hide D. abhor : detest 12.In India, mistreatment of ...
*September 23, 2014*

**CHECK PLEASE**

The ones with ** ** around the answer choices is what I picked 1.Find the best word to complete the sentence. Because of the camera's precision, linesmen at national tennis competitions are now ___ from error in determining if a ball lands in or out of the court. A.**...
*September 22, 2014*

**CHECK PLEASE**

Please check my answers...the ones with ----then a answer choice (is my answer) 1. Find the best word to complete the sentence. My brother clung ___ to his belief that Alfred Hitchcock was the greatest film director of all time. (Points : 1) coherently ineptly -------...
*September 22, 2014*

**Physics**

does the mass always have to be in kilograms? If it is not, do we convert it to kg?
*September 21, 2014*