Monday

October 20, 2014

October 20, 2014

Total # Posts: 297

**Math.**

T -shirts for first prize winners in the games cost $23.40. This was $8.77 less than their cost one year ago. What was the cost of the T-shirts one year ago?
*September 21, 2014*

**SCI207**

Net- zero refers to a building or installation that produces less energy less than consumes, considered to be energy reliant. True or false
*February 9, 2014*

**pre-calculus**

thank you :)
*January 12, 2014*

**pre-calculus**

Express the edge length of a cube as a function of the cube's diagonal length d. Then express the surface area and volume of the cube as a function of the diagonal length.
*January 12, 2014*

**horizon**

What part of speech is the italicized word in the sentence below? What part of speech is the italicized word in the sentence below? Four score and seven years ago, our forefathers brought forth UPON this continent a new nation conceived in liberty and dedicated to the ...
*June 3, 2013*

**Trig**

Use sum and difference identitites to find the exact value of co 15 degrees
*May 8, 2013*

**math **

number N of state and federal inmates in millions during year x where x >=2002 can be approximated by the following formula N=0.04x-79.02. determine the year in which there were 1.1 million inmates
*May 1, 2013*

**Math**

The number of 5th grade students who volunteered to help clean up the park this was 5 less than twice as many last year If 39 5th graders volunteered to help clean up the park this year how many volunteered last year
*January 29, 2013*

**geometry**

Pqrs -jklm with a scale factor of 4:3qr-8cm what is the value of kl
*December 6, 2012*

**penketh high**

Laughing Gas, N2O, is made by the careful decomposition of ammonium nitrate NH4NO3 (s) = N20 (g) + 2H20 (g) How many grams of N2O can you obtain? How many dm3 of stream would also be produced?
*November 18, 2012*

**Physics**

Racing on a flat track, a car going 32 m/s rounds a curve 56 m in radius. What is the force of friction needed for the car to round the curve without slipping?
*November 4, 2012*

**Math**

Reasonables: I am between 24 and 34 what number am I
*October 31, 2012*

**psychlogy**

what might be the advantages of using the archival methods?
*October 24, 2012*

**Math**

It is greater than 43 and less than 52 if you add the digits the sum 8 right the number word
*September 27, 2012*

**Math**

It is greater than 43 and less than 52 if you add the digits the sum is 8 write the number word
*September 27, 2012*

**Algorithms**

Help Please: I need some help and guidance to solving this problem Week 4 CheckPoint – Repetition and Decision Control Structures In one of the week 3 discussion questions we discussed the algorithm that would be required to make a peanut butter sandwich. In this ...
*September 26, 2012*

**HEALTH**

Its A
*August 13, 2012*

**health**

Its not D
*August 13, 2012*

**health**

D is correct
*August 13, 2012*

**health**

one month
*August 11, 2012*

**health**

B is correct
*August 11, 2012*

**health**

The answer is D , This is a no brainer lol.. weve always been taught to eat breakfast or exleast I have in my youth ears for an increase in energry
*July 28, 2012*

**Psychology And Your Life**

I am trying to construct a sentence using Maslow's theory on Physiological Needs. It can be personal or hypothetical.
*June 23, 2012*

**programming in c++**

I need some help and guidance to solve this problem. Week 4 CheckPoint – Repetition and Decision Control Structures In one of the week 3 discussion questions we discussed the algorithm that would be required to make a peanut butter sandwich. In this CheckPoint you will ...
*June 19, 2012*

**vulindlela **

How smoking is a human factor that may cause ill health
*May 22, 2012*

**physics**

Two pellets, each with a charge of 0.80 microcoulomb (8.0×10−7 C), are located 4.0 cm (4.0×10−2 m) apart. Find the electric force between them, which I solved for 3.6 N. I am stuck on the next part: What would be the mass of an object that would ...
*April 17, 2012*

**physics**

Two point charges are separated by 6.4 cm. The attractive force between them is 10 N. Suppose that the charges attracting each other have equal magnitude. Rearrange Coulomb's law and find the magnitude of each charge
*April 17, 2012*

**physics**

last one before I got to go to work Which of these cities has the smallest incidence of cosmic rays? A) All about the same.B) New York City.C) Mexico City.D) Singapore.E) Anchorage.
*April 16, 2012*

**physics**

all of these
*April 16, 2012*

**physics**

The relationship between magnetic force and magnetic pole strength is similar to the relationship between which of the following?. A) force, mass, and distance as in Newton's law of gravity.B) All of these.C) current, voltage, and resistance as in Ohm's law.D) Two of ...
*April 16, 2012*

**physics**

is the force on a point charge due to electromagnetic fields. thanks!!
*April 16, 2012*

**physics**

the section in the chapter states form what I am getting it, is rotation, force and a states voltage. It is no very clear
*April 16, 2012*

**physics**

An electric motor best makes use of the fact that on a current-carrying wire in a magnetic field there exists which of these?. A) electromagnetic energy to be tapped.B) rotation.C) All of these.D) a force.E) a changing voltage. Is this roation or all of these???
*April 16, 2012*

**physics**

An electric motor best makes use of the fact that on a current-carrying wire in a magnetic field there exists which of these?. A) electromagnetic energy to be tapped.B) rotation.C) All of these.D) a force.E) a changing voltage. Is this roation or all of these
*April 15, 2012*

**physics**

last one for now..this is nowhere in my text !! Which of these cities has the smallest incidence of cosmic rays? A) All about the same.B) New York City.C) Mexico City.D) Singapore.E) Anchorage.
*April 15, 2012*

**physics**

last one for now..this is nowhere in my text or when I google it!! Which of these cities has the smallest incidence of cosmic rays? A) All about the same.B) New York City.C) Mexico City.D) Singapore.E) Anchorage.
*April 14, 2012*

**physics**

An electric motor best makes use of the fact that on a current-carrying wire in a magnetic field there exists which of these?. A) electromagnetic energy to be tapped.B) rotation.C) All of these.D) a force.E) a changing voltage. I say it is roation or all of these
*April 14, 2012*

**physics**

This is what I thought too (found in my textbook) it is teling me it is wrong!!
*April 14, 2012*

**physics**

Which of these is the same in identical branches of a parallel circuit? A) All of these.B) Voltage.C) Current.D) None of theseE) Resistance. again my textbook says that voltage is the one that the paths are the same,is it all of these?
*April 14, 2012*

**physics**

Electric current is a flow of electric charge that moves due to an electric pressure is called what?. A) wattage.B) voltage.C) All of these to some degree.D) None of these.E) amperage. I chose ampere, this is what my textbook tells me and I got it wrong
*April 14, 2012*

**physics**

The relationship between magnetic force and magnetic pole strength is similar to the relationship between which of the following?. A) force, mass, and distance as in Newton's law of gravity.B) All of these.C) current, voltage, and resistance as in Ohm's law.D) Two of ...
*April 14, 2012*

**physics**

The key ingredient in anything magnetic is which of the following?. A) moving electric charge.B) magnetic domains that are aligned C) pairs of magnetic poles.D) the surrounding magnetic field.E) magnetic polarization.
*April 14, 2012*

**physics**

The lowest resistance in a common electric circuit containing a common lamp is in which of these A) connecting wires.B) Both of these.C) Neither of these.D) lamp filament. I would say lamp filament is this correct?
*April 14, 2012*

**physics**

At a certain location, the solar power per unit area reaching Earth's surface is 200 W/m^2, averaged over a 24-hour day.If the average power requirement in your home is 2.8 kW and you can convert solar power to electric power with 8.0 % efficiency, how large a collector ...
*April 4, 2012*

**physics**

A 40g chunk of 90 degree C iron is dropped into a cavity in a very large block of ice at 0 degree C.Find what mass of ice will melt. (The specific heat capacity of iron is 0.11 cal/g degree C)
*April 3, 2012*

**physics**

Consider 60 g of hot water at 70 degree C poured into a cavity in a very large block of ice at 0 degree C. A)What will be the final temperature of the water in the cavity? B)Find what mass of ice must melt in order to cool the hot water down to this temperature
*April 3, 2012*

**physics**

Find the mass of 0 degree C ice that 15 g of 100 degree Csteam will completely melt.
*April 3, 2012*

**physics**

The specific heat capacity of ice is about 0.5 cal/g degree C A)Supposing that it remains at that value all the way to absolute zero, calculate the number of calories it would take to change a 0.50g ice cube at absolute zero (-273 degree C}) to 0.50 g of boiling water. B)How ...
*April 3, 2012*

**physics**

Water with a mass of 0.500 kg at 15.0 degree C is mixed with 0.800 kg of water at 35.0 degree C. What is the final temperature T_f of the mixture?
*April 3, 2012*

**physics**

In lab you submerge 100 g of 41 degree Celcius iron nails in 100 g of 25 degree Celcius water (the specific heat of iron is 0.12 cal/g degrees Celcius) A)Equate the heat gained by the water to the heat lost by the nails and find the final temperature of the water. B)Your lab ...
*April 3, 2012*

**physics**

At a certain location, the solar power per unit area reaching Earth's surface is 200 W/m^2, averaged over a 24-hour day.If the average power requirement in your home is 2.8 kW and you can convert solar power to electric power with 8.0 % efficiency, how large a collector ...
*April 3, 2012*

**physics**

In lab, Will burns a 0.6 g peanut beneath 48 g of water, which increases in temperature from 22 degree C to 55 degree C. The amount of heat absorbed by the water can be found with the equation Q =cm \Delta T, where Q is the amount of heat, c the specific heat of water, m the ...
*April 3, 2012*

**physics**

thanks so much!!!!!
*April 3, 2012*

**physics**

Steel expands 11 parts in a million for each 1 degree C change. Consider a 40,000 km steel pipe that forms a ring to fit snugly all around the circumference of the Earth. Suppose people along its length breathe on it so as to raise its temperature 0.80 degree C. The pipe gets...
*April 3, 2012*

**physics**

never mind......took another 50 % ran out of time, Got the 1st part but not the 2nd ughhhh
*April 3, 2012*

**physics**

On a perfect fall day, you are hovering at low altitude in a hot-air balloon, accelerated neither upward nor downward. The total weight of the balloon, including its load and the hot air in it, is 24000 N. Find the weight of the displaced air. !!I got this: it is 2.4×10...
*April 3, 2012*

**physics**

Help, the last equation given to me on previous question was incorrect and I took a 0 % on my assignment !!! A mountain-climber friend with a mass of 82 kg ponders the idea of attaching a helium-filled balloon to himself to effectively reduce his weight by 25% when he climbs...
*April 3, 2012*

**physics**

Radioactive decay of granite and other rocks in Earth's interior provides sufficient energy to keep the interior molten, to heat lava, and to provide warmth to natural hot springs. This is due to the average release of about 0.03 J per kilogram each year.Find an increase ...
*April 1, 2012*

**physics**

Estimate the buoyant force that air exerts on you. (To do this, you can estimate your volume by knowing your weight and by assuming that your weight density is a bit less than that of water.) Assume that your weight is a about 1000 N, for example.
*April 1, 2012*

**physics**

Steel expands 11 parts in a million for each 1 degree C change. Consider a 40,000 km steel pipe that forms a ring to fit snugly all around the circumference of the Earth. Suppose people along its length breathe on it so as to raise its temperature 0.80 degree C. The pipe gets ...
*April 1, 2012*

**physics**

A mountain-climber friend with a mass of 82 kg ponders the idea of attaching a helium-filled balloon to himself to effectively reduce his weight by 25% when he climbs. He wonders what the approximate size of such a balloon would be. Hearing of your physics skills, he asks you...
*April 1, 2012*

**physics**

In lab, Will burns a 0.6 g peanut beneath 48 g of water, which increases in temperature from 22 degree C to 55 degree C. The amount of heat absorbed by the water can be found with the equation Q =cm \Delta T, where Q is the amount of heat, c the specific heat of water, m the ...
*March 31, 2012*

**physics**

this is incorrect and I got a 0% on the assignment
*March 31, 2012*

**physics**

Consider an airplane with a total wing surface of 90 m^2. At a certain speed the difference in air pressure below and above the wings is 4.2% of atmospheric pressure. Find the lift on the airplane.
*March 31, 2012*

**math-probability**

I have to do a math project using probability. I thought I might use Go Fish cards but I am not what kind of questions to ask can you help please?
*February 25, 2012*

**Probability**

A card is drawn from a standard deck of cards. Find P(A U B) in each part. A= {getting a heart}, B= {getting an even number} A= {getting a club}, B= {getting a red card} A= {getting an ace}, B= getting a black card} A= {getting a prime}, B= {getting a diamond} Can you please ...
*February 15, 2012*

**statistics**

For a particular sample of 80 scores on a psychology exam, the following results were obtained. First quartile = 65 Third quartile = 98 Standard deviation = 8 Range = 56 Mean = 83 Median = 81 Mode = 59 Midrange = 64 Answer each of the following: I. What score was earned by ...
*February 2, 2012*

**physics**

A lever uses a force 212 Newtons to move a rock that weighs 2000 Newtons. What is the mechanical advantage?
*January 29, 2012*

**physics**

A person lifts a 199 Newton stack of books 12 meters high in 7 seconds. How much power is used to lift the books?
*January 29, 2012*

**math**

How do u find the slope of y= 3x-5 would u use the formula y= mx + 1
*January 20, 2012*

**Inequality**

Solve: x - 4 less than or equal to 3x - 8 can u move the 4 and add and then move the 3x to the other side and it become -3x, and then solve?
*January 20, 2012*

**math**

How can you tell if a number is rational or irrational? a) 3.215 (there is a line drawn over the 15) b.) square root 10 c) 0.143639854024 d)4.312 can you please explain what i need to look at to tell which is which?
*January 20, 2012*

**math problem**

subtract 4 from each side and then you are left with x is greater than or equal to 16
*January 20, 2012*

**math**

If you have 1/2 x - 2/3 = 2 how would you solve, can you please help.
*January 20, 2012*

**math**

How would you solve this problem: 3(x-2)-1=5x + 3 Can you please help!!!!
*January 20, 2012*

**math**

Simplify the square root. 2 square root 50. What are the steps to simplify this problem.
*January 20, 2012*

**geometry**

How do you solve the following equation. -2= (-5/12)x + 3
*January 14, 2012*

**geometry**

How do you express the following value without exponents? (-243) 6/5
*January 14, 2012*

**math**

The bright of a model ticket us 4% of the bright of the actual rocket. The model is 1.8 meters high how high us the actual rocket?
*January 3, 2012*

**Physics**

if a baseball is thrown 30 m/s backwards from a truck moving 50 m/s, how fast will the ball strike the glove of a ground based catcher?
*November 30, 2011*

**Geometry**

A man has a garden 10 meters square to fence. How many fence posts are needed if each post is 1 meter from the adjacent posts?
*November 16, 2011*

**Geometry-Please Help**

A man has a garden 10 meters square to fence. How many fence posts are needed if each post is 1 meter from the adjacent posts?
*November 14, 2011*

**Geometry**

A 4-inch-thick concrete slab is being poured for a circular patio 10 feet in diameter. Concrete costs $50 per cubic yard. Find the cost of the concerte, to the nearest cent. Show how you come to your answer.
*November 14, 2011*

**Geometry**

A man has a garden 10 meters square to fence. How many fence posts are needed if each post is 1 meter from the adjacent posts? Question says to show work.
*November 14, 2011*

**Geometry**

How many pieces of square floor tile, 1 foot on a side, would you have to buy to tile a floor that is 11 feet 6 inches by 8 feet?
*November 14, 2011*

**chemistry**

Assume that you have 2.75 g of the deadly gas hydrogen cyanide,HCN. What is the volume of the gas at STP?
*November 7, 2011*

**english**

I have to write a short paper on Shakespeare Twelfth Night-Act 5 scene 1 lines 248-262. But what we have to do is to translate those lines into a different "lingo" dialect but I don't even know how to get started. Can someone please help? PLEASE!!!!!!!!!!!!!!!!!!!!
*November 4, 2011*

**algebra**

If you have a^ + b^= (a+b)(a+b). Is this always true, never true, or sometimes true? Explain.
*November 2, 2011*

**math**

Can you please help explain this problem? Maurice says that a(square)+ b(square)=(a+b)(a+b). Is this always true, never true, or sometimes true? Explain.
*November 1, 2011*

**math**

Can you please show me the steps to work this problem? 2(4+6)+4(2-3)=
*November 1, 2011*

**math**

What temperature is numerically the same in degrees Celsius and degrees Fahrenheit?
*October 15, 2011*

**math**

Identify the following amounts. 1. "Decidollar" 2. "Centidollar" 3. "Dekadollar 4. "kilodollar"
*October 15, 2011*

**math**

The mass of one electron is 9.11 * 10(negative 28) grams. A uranium atom contains 92 electrons. Find the total mass of the electrons in a uranium atom. Express your answer in scientific notation.
*October 15, 2011*

**math**

How many factors does each of the following numbers have? 7^3 * 11^3 =
*October 5, 2011*

**math**

I have a question that is asking me "How many factors does each of the following numbers have? 12^4=
*October 5, 2011*

**math**

Two digits of this number were erased: 273*49*5. However, we know that 9 and 11 divide the number. What is it?
*October 5, 2011*

**math**

How many factors does 7^11*19^6*79^23 have?
*October 5, 2011*

**English**

Help I don't under stand Spondee, I am supposed to find the spondee in these lines...."Who loved his charge but never loved to lead; One whose meek flock the people loved to be, not lured by any cheat of birth."
*September 26, 2011*

**Social studies**

What physical factors played a rolled in developing the geography of the four mayor natal regions of Texas
*September 22, 2011*