Friday

August 29, 2014

August 29, 2014

Total # Posts: 797

**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*

**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*

**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*

**Statistics**

An auditor reviewed 25 oral surgery insurance claims from a particular surgical office, determining that the mean out-of-pocket patient billing above the reimbursed amount was $275.66 with a standard deviation of $78.11. (a) At the 5 percent level of significance, does this ...
*June 6, 2010*

**Statistics**

A coin was flipped 60 times and came up heads 38 times. (a) At the .10 level of significance, is the coin biased toward heads? Show your decision rule and calculations. (b) Calculate a p-value and interpret it
*June 6, 2010*

**religion**

why do people not believe in the miracles of lourdes
*June 1, 2010*

**Consumer Math Part1**

35.4% Expressed as a decimal because?
*May 19, 2010*

**Math**

Jason is building models in the shape of rectangular prisms. The smaller model has a surface area of 35" sq. and a scale factor of 6. What is the surface area of the larger model?
*May 7, 2010*

**science/math**

Well, the area of a rectangle is 1/2bh Base times height That should help.
*May 3, 2010*

**Collisions**

Suppose a bullet of mass m = 6.96 g is fired into a ballistic pendulum whose bob has a mass of M = 0.677 kg. (a) If the bob rises to a height of 0.141 m, what was the initial speed of the bullet? I got .042 km/s; but its wrong. (b) What was the speed of the bullet-bob ...
*April 29, 2010*

**Physics**

During a rescue operation, a 5350 kg helicopter hovers above a fixed point. The helicopter blades send air downward with a speed of 59.0 m/s. What mass of air must pass through the blades every second to produce enough thrust for the helicopter to hover? I got 31560 kg*m/s but...
*April 29, 2010*

**1st grade**

Sam sees a figure The figure has one face The figure is curved What figure(shape) does Sam see?
*April 26, 2010*

**Physical Science**

what is all the information about the fate of stars?
*April 26, 2010*

**Physics**

Three uniform meter sticks, each of mass M, are placed on the floor as follows: stick 1 lies along the y axis from y = 1.3 to y = 2.3 m, stick 2 lies along the x axis from x = 0.0 to x = 1 m, stick 3 lies along the x axis from x = 1.0 m to x = 2.0 m. Find the location of the ...
*April 25, 2010*

**Chemistry**

I live in an area of 1014 millibars barometric pressure and I have an imaginary balloon with 22 grams of CO2 and a temperature of 61 degrees Fahreheit. What is the volume of the gas in liters. I know to use the Ideal gas law but how do I convert millibars to atm for the "...
*April 22, 2010*

**Chemistry**

I forgot in my previous question to say 1014 millibars. The question is I live at 1014 millibars for barometric pressure and temp. is 61 degrees Fahrenheit. I have an imaginary balloon that contains 22 grams of CO2-what is the volume in liters of the balloon using the gas ...
*April 21, 2010*

**Chemistry**

I forgot to say 1014 millibars-so how do I convert millibars to atm for my problem Thank you
*April 21, 2010*

**Chemistry**

Help-I'm really confused-The barometric pressure in my area is 1014 and the temperature is 61 degrees farhenheit. I am suppose to have an imaginary balloon that contains 22 grams of carbon dioxide. Calculate the volume in liters of the balloon using the gas law constant. ...
*April 21, 2010*

**English**

What are five key events that occur during the rising action in Cyrano de Bergerac?
*April 14, 2010*

**math**

write a fraction for 5 buttons with 4holes
*April 13, 2010*

**4th grade math**

less
*March 30, 2010*

**poetry**

The Line"I Wandered lonely as a cloud" is an exaple of what ?
*March 14, 2010*

**Writing**

Could someone please help me write this sentence/sentences and punctuate it properly: Additional key questions answered by the management plan include: how the work is to be completed to achieve the project goal, how the changes will be monitored and controlled, how will ...
*March 14, 2010*

**Science**

Where does the energy go when you melt chocolate?
*March 14, 2010*

**Chemistry**

I keep getting 1.479, but the program I use for homework keeps counting it wrong. Am I totally off?
*March 8, 2010*

**Chemistry**

Calculate the pH of .100M of HClO2.
*March 8, 2010*

**World History**

Today
*March 7, 2010*

**World History**

What are the similarities and differences between the life of factory workers in the US and the lives of the manchester mills workers?
*March 7, 2010*

**World History**

What is the life of a factory worker in the US like?
*March 7, 2010*

**english**

I really need
*March 2, 2010*

**algebra**

3a + b + 3a +b=
*March 1, 2010*

**2nd grade**

How did John Smith help the colonies
*February 25, 2010*

**Chemistry please help!**

Please help. I have no idea how to do these 4 homework problems. 1- How many milliliters of 0.140 M HCl are needed to completely neutralize 42.0mL of 0.106 M Ba(OH)2 solution? 2-How many milliliters of 0.123 M H2SO4 are needed to neutralize 0.250 g of NaOH ? 3-If 55.2 mL of ...
*February 22, 2010*

**World History**

How are John Locke's ideas being used in today's society?
*February 18, 2010*

**science **

what is a limestone rock
*February 9, 2010*

**social studies**

why did they sign the treaty
*February 9, 2010*

**science **

three types of conquina sedimentary rocks
*February 9, 2010*

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