Friday

August 26, 2016
Total # Posts: 935

**chemistry**

how many grams of manganese (4) oxide are needed to make 5.6 liters of a 2.1 solution
*March 10, 2011*

**Physics concept question**

solved it.
*March 7, 2011*

**Physics concept question**

A long straight horizontal wire carries a current I = 2.10 A to the left. A positive 1.00 C charge moves to the right at a distance 4.50 m above the wire at constant speed v = 2250 m/s. What are the magnitude and the direction of the magnetic force on the charge? h t tp:// ...
*March 7, 2011*

**Physics - Current Loop**

Solved it.
*March 7, 2011*

**Physics - Current Loop**

A current loop in a motor has an area of 0.85 cm^2. It carries a 240 mA current in a uniform field of 0.62 T. What is the magnitude of the maximum torque on the current loop?
*March 7, 2011*

**Physics- Charge in electromagnetic field**

Solved it. Thanks.
*March 7, 2011*

**Physics- Charge in electromagnetic field**

An antiproton (which has the same properties as a proton except that its charge is -e) is moving in the combined electric and magnetic fields of the figure: h tt p://post image. org/image/2sh3s3hs4/ What are the magnitude and direction of the antiproton's acceleration at ...
*March 7, 2011*

**Math**

or to be more specific, one half the base times the height. so one half of 16 times 31, or 8 times 31.
*March 3, 2011*

**Math**

A= (1/2)(b*h)
*March 3, 2011*

**Calculus**

i figured out the f^-1(x) is the ln ((-13x-6)/(17x-5)) i just need a and b plz help before 11 pm
*March 3, 2011*

**Calculus**

f(x) = (5e^x-6)/(17e^x+13) find f^-1(x). since the domain of f^-1(x) is in the open interval (a, b) what is a and and b?
*March 3, 2011*

**chemistry**

Iron(II) can be oxidized by an acidic K2Cr2O7 solution according to the net ionic equation. Cr2O72− + 6 Fe2+ + 14 H+ 2 Cr3+ + 6 Fe3+ + 7 H2O If it takes 44.0 mL of 0.0250 M K2Cr2O7 to titrate 25.0 mL of a solution containing Fe2+, what is the molar concentration of Fe2+?
*March 3, 2011*

**Algebra**

apples- 55 cents oranges- 75 cents
*March 3, 2011*

**statistics**

The results of a medical test show that of 66 people selected at random who were given the test, 3 tested positive and 63 tested negative. Determine the odds in favor of a person selected at random testing positive on the test.
*February 24, 2011*

**Life orientation**

Identify 5 practices in contravention of the basic conditions of employment act?
*February 21, 2011*

**physics**

the coefficient of restitution between the ball and the floor is 0.60 If the ball is drop from rest at the height of 6.6 m from the floor. Find a) what is the maximum height will the ball attain after the first bounce. b) how much kinetic energy is lost duirng the impact if ...
*February 21, 2011*

**physics**

north-eastern
*February 18, 2011*

**Physical science**

The acceleration due to gravity on earth
*February 18, 2011*

**world history**

some parts of spain remained under muslim control for how many years
*February 17, 2011*

**Physics with Calc**

A point charge of 1.8uC (microcoulumbs) is at the center of a Gaussian cube 55 cm on edge. What is the net electric flux through the surface?
*February 5, 2011*

**Chemistry**

Need help balancing this equation, just the coeffecients, do not need to balance the charges. The numbers are subscripts: Ca0.41Mg0.36Mn0.50Fe1.76Al2Si3O12 + H + H20 <---> Al(OH)3 + FeOOH + MnO2 + Ca + Mg + Si(OH)4
*January 29, 2011*

**geometry**

How to find the area of a KITE when the length of only one diagonal is given, with two pairs of congruent sides but with no length described
*January 25, 2011*

**Algebra**

7. Marcus can paint a garage in 3 hours. Gina can paint the same garage in 2 hours. How long will it take Marcus and Gina to paint the garage if they work together
*January 14, 2011*

**Algebra**

Thank you so much!!!(:
*January 14, 2011*

**Algebra**

How many pounds of apples costing .64 per pound must be added to 30 pounds of apples costing .49 per pound to create a mixture that would cost .58 per pround
*January 14, 2011*

**Algebra**

x = adult tkts y = student tkts 3x = value of adult tkts 1.5y = value of student tkts x + y = 105 3x + 1.5y = 250
*January 14, 2011*

**Algebra**

x = adult tkts y = student tkts 3x = value of adult tkts 1.5y = value of student tkts x + y = 105 3x + 1.5y = 250
*January 14, 2011*

**Algebra**

How do you solve the equations? ):
*January 14, 2011*

**Algebra**

Michelle sold tickets for the basketball game. Each adult ticket costs 3$ and each student ticket costs 1.50. There were 105 tickets sold for a total of 250$. How many of each type of ticket were sold?
*January 14, 2011*

**3rd grade math**

how do explain how to break apart 3 x 9 to help me multipy
*January 11, 2011*

**reading**

Name some symbols for science fiction?
*December 19, 2010*

**US History**

It would help him throughout his presidency,because that was his advisors or cabinet members.
*December 19, 2010*

**physics**

In hitting a stationary pool ball with the mass of 170 g, a billiards player gives the ball impulse of 6.0 N-s. At what speed will the pool ball move toward the hole?
*December 16, 2010*

**Physics**

Thank you!
*December 13, 2010*

**Physics**

Can't figure it out. Does it have something to do with finding w? w=2pi/T = square root of k/m but I don't have K or T?
*December 13, 2010*

**Physics**

A 1125 kg car carrying four 80 kg people travels over a rough "washboard" dirt road with corrugations 4.0 m apart which causes the car to bounce on its spring suspension. The car bounces with maximum amplitude when its speed is 17 km/h. The car now stops, and the ...
*December 13, 2010*

**fractions**

6/10 is how long he taught 8th grade so 10 - 6 = 4 is how long he taught something else. The new fraction would be 4/10 but if you simplify it, 2 being the common factor in both you would get 2/5 4 = 2 * 2 10 = 2 * 5
*December 12, 2010*

**Physics**

After reading your comment and picturing a see saw, now I get it. Thank you soooo much and have a happy holiday :)
*December 12, 2010*

**Physics**

Another question in regards to CT. I know CT refers to the clockwise turn of the meter stick but how can you picture it going in that direction? With no weight on the ruler, isn't it at an equilibrium?
*December 12, 2010*

**Physics**

Ahhh, thank you, a lot clearer :)
*December 12, 2010*

**Physics**

Thank you so much. I'm confused about one thing though, what does CCT and CT stand for? is it Torque? Or is that another way for center of mass
*December 12, 2010*

**Physics**

A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 5.00 g coins stacked over the 7.0 cm mark, the stick is found to balance at the 41.0 cm mark. What is the mass of the meter stick? The answer is 38g but I don't understand how to get it.
*December 12, 2010*

**psycology**

Do an ESSAY Using Kohlberg's three levels and six stages of moral reasoning, create a character that passes through each stage and explain how she/he responds to moral dilemmas present at each stage.
*December 11, 2010*

**Physics ( check answers)**

warren moon throws a footbal with a velocity of 20 m/s at an angle of 30 degrees with the horizontal. air resistance may be ignored. how much time is required for the football to reach the highest point of the trajectory
*December 9, 2010*

**science**

How to write 5,800 million metric tons in standard form and in scientific notation?
*December 7, 2010*

**science**

How to write 5,800 million metric tons in standard form and in scientific notation?
*December 7, 2010*

**12th grade math**

34
*December 1, 2010*

**Algebra 7th Grade**

is it correct?
*November 29, 2010*

**Algebra 7th Grade**

-5576
*November 29, 2010*

**Algebra 7th Grade**

what is -8(700-3)= (using distributive property)
*November 29, 2010*

**Algebra 7th Grade**

what is -8(700-3)= (using distributive property)
*November 29, 2010*

**Algebra 7th Grade**

what is -8(700-3)= (using distributive property)
*November 29, 2010*

**geometry**

a dog toy is constructed in the shape of a cylinder with a length of 6.8 in. The cylinder has a hemisphere at each end. The diameter is 1-9 in. Find the volume.
*November 29, 2010*

**Physics**

Never mind. I realized that you want the force of friction to equal the force of tension. Thus when you set it up, you find the normal force and subtract the current way. Ft=Ff Ft=mu x N N-Ma=Mc
*November 18, 2010*

**Physics**

In Fig. 6-25, blocks A and B have weights of 49 N and 21 N, respectively. (a) Determine the minimum weight of block C to keep A from sliding, if µs between A and the table is 0.20. (b) Block C suddenly is lifted off A. What is the acceleration of block A, if µk ...
*November 18, 2010*

**math**

(6x-7) 5x
*November 15, 2010*

**algebra II**

find the area of a triangle fgh f(1,4) g(-2,-3) h(3,-2) using matricies
*November 8, 2010*

**Physics earth & Space**

toward what direction, north or south would you look to the sun at noon on june 21-22 if you lived at the following latitudes
*November 8, 2010*

**algebra 2**

What is the factorization of the trinomial 3x2 plus 27x plus 60?
*November 8, 2010*

**Honors Algebra**

what is the area of a square that has 48 x
*November 4, 2010*

**algebra**

Dean is 1/4 that of Emily. In six years Emily will be two times older than Dean. How old is Dean?
*November 2, 2010*

**science**

If a car is at a stop and it has to travel 2 miles and its speed is zero to sixty in 9 seconds asuming that you give it full power how fast will it be traveling when it travels 2 miles?
*November 2, 2010*

**english**

I have to do a Literary criticism on the author Jules Verne and the books. The problem I have is thinking of a good enough thesis statement that will help me get started on writing my essay.
*November 1, 2010*

**english**

1 Sentence thesis on Jules Verne "A journey to the center of the earth"?
*November 1, 2010*

**Python Programming**

A customer is in a store to purchase 6 items. Write a program which asks for the sales tax and the price of each item, then displays: 1. the subtotal of the sale 2. the total amount of tax to be collected 3. the total amount the customer must pay
*October 31, 2010*

**Chemistry**

whats becos mean
*October 28, 2010*

**Chemistry**

Compare and Contrast the motion of particles in a solid , liquid and gas?
*October 28, 2010*

**12th grade**

A person standing at the edge of a seaside cliff kicks a stone over the edge with a speed of 13 m/s. The cliff 42 m above the water’s surface With what speed does the stone strike the water? Answer in units of m/s..
*October 27, 2010*

**4th grade**

two small arrays have been combined to make a big array. what are the dimensions and product of the big array? fill in the equation that shows this big array broken into two small arrays. Square is broken into 10x6 and 10x5
*October 27, 2010*

**Physics**

In Fig. 4-11, a ball is launched with a velocity of 7.50 m/s, at an angle of 50° to the horizontal. The launch point is at the base of a ramp of horizontal length d1 = 4.00 m and height d2 = 3.60 m. A plateau is located at the top of the ramp. What is the magnitude of its ...
*October 25, 2010*

**Physics**

write on (i) Cloud chamber (ii) pressurized water reactor (iii) breeder reactor
*October 24, 2010*

**algebra**

A 35in. t.v. set has a width of 28in. What would the hight of a 35in. t.v. set?
*October 23, 2010*

**math**

Analogies: 54:45 :: 79: ______
*October 19, 2010*

**math**

A landscape designer had 50 2/3 pounds of seeds that she wishes to parcel into packages of 2/3 pound each. How many packages can she make?
*October 19, 2010*

**Physics**

This is actually incorrect... The angle between the B field and the area is 90-71.6 degrees, or 75 degrees. B*A*COS angle.
*October 18, 2010*

**math**

Hello! My name is Robert and I am in 6th grade. I have a question about my homework and my mom and dad cant help u because they are still at work and i need help.Can you please tell me what a division problem that has the same answer as 4.65 divided by 0.12 is? If you can u ...
*October 13, 2010*

**consumer/business math**

Amy earns $0.16 per unit for the work she does. For all units she produces in a week over 1,000, she receives $0.26. What were her weekly earnings if she produced 1,725 units in one week?
*October 13, 2010*

**physical**

60kg
*October 12, 2010*

**Science**

how many mountain lion species are there?
*October 8, 2010*

**algebra**

90% of what number is 45?
*October 5, 2010*

**investing**

My son informed me that a comic book I purchased for 10 cents in 1948 is worth $55 today. What has been the average annual compound rate of return on that valuable asset?
*October 4, 2010*

**Business Communication **

If an audience is opposed to what you have to say or resistant to a charge you are suggesting, a good approach is to:
*September 30, 2010*

**physics 101**

What minimum speed does a 150g puck need to make it to the top of a 4.5m -long, 21degree frictionless ramp?
*September 21, 2010*

**poetry**

What is the theme presented in the poem: "You are reading this too fast," by Ken Norris?
*September 20, 2010*

**Physics**

Nevermind, I got it. a) 78 N b) 0.35
*September 19, 2010*

**Physics**

A 24 kg box is released on a 21 degree incline and accelerates down the incline at 0.27 m/s^2. a) Find the friction force impeding its motion. b) What is the coefficient of kinetic friction?
*September 19, 2010*

**Science **

Give an example of how animal behavior would chnge if the Earth become hotter in the future.
*September 15, 2010*

**8th grade math**

answer: 30m
*September 9, 2010*

**6th grade vocabulary**

how do you bild a quote using a web circle and why does the four words needed must have ing, ation,able,and mis in them?
*August 25, 2010*

**algebra**

A 35in. tv set has a width of 28 in, what would be the hight?
*August 24, 2010*

**math**

find the value of the variables 5y+8=21
*August 23, 2010*

**Business**

The longer the time to maturity the less the price increase from an increase in interest rates.
*July 21, 2010*

**algebra 1**

how do you write an expression for "three times the difference of a number "x" and5."
*July 13, 2010*

**Communication and Gender Studies**

What message in the lyrics from Harry Chapin cats in the cradle song from 1974 convey considering the relationship to gender and family? Could this song have as easily been written about a mother lamenting her relationship with her daughter? If so, why? If not, why not?
*July 12, 2010*

**Math 133**

when the volume of a cube is given by V=S3, where S, is the lenght of a side. Find the lenght of a side of a cube if the volume is 500 cm3. And round the answer to three decimal places. can you solve this problem and show all steps with the solution?
*July 11, 2010*

**chemistry**

A weak monoprotic acid was calculated, using the usual formula for Ka, to give a pH of 7.4 at a certain concentration. The student who did the calculation was puzzled. What would you advice him/her to do?
*July 6, 2010*

**algebra**

The function described by H(x) = 2.75 +71.48 can be used t predict the hight, in centimeters, of a woman whose humerus ( the bone from the elbow to the shoulder) is x cm long.redct the highth of a woman whose humerus is 35cm long.
*July 5, 2010*

**Physics**

mass of ball = w/g Acentripetal = v^2/R Force in rope = T up force of gravity down = m g = 71.2 N F = m a T -W = Ac*M T = W + Ac*M
*June 27, 2010*

**Communication and Gender Studies**

Thanks for this help!
*June 7, 2010*

**Communication and Gender Studies**

Hello everyone! I need help determining how are women in the United States today being discriminated against. I need to provide atleast 3 examples. Can anyone offer some ideas? Thank you!
*June 7, 2010*