Wednesday

April 16, 2014

April 16, 2014

Total # Posts: 105

**chemistry**

Determine the speciﬁc heat of a material if a 27.3 g sample absorbed 44.2 J as it was heated from 293 K to 336 K.

**psychology**

Thank You Ms. Sue

**psychology**

what were the major contributions made by Donald Hebb to the field of learning and psychology? All I can find is that he wrote a book

**Chemistry**

first i usually write the problem over to see what i've got. remember the first rule is to turn moles into grams. finding out what moles you have and what grams you have. Divide moles into grams to solve for gram/moles. Cancel the moles so you're left with grams.dah! ...

**math**

Math question. Two part. A am rifle bullet accelerates from 0 to 1000 m/s ( about 2240 MPH) in 1/1000 second when fired. What is the avg acceleration of the bullet in m/s2? If this rate of acceleration could be somehow maintained, how long would it take for the bullet to reach...

**accounting**

Quayle Corporation reports net income of $380,000 and weight-in average of 200,000 outstanding fro the year. Complete the earnings per share of Common Stock.

**eng/lit**

I have gone to many sites and links and i am still having trouble figuring out the answers. any new info will be appreciated

**eng/lit**

in poem Words by vern ratsala The words "studio couch" and "cot" in line 10 reinforce the contrast between the world of the movies and the narrators world of a longing b restlessness c emptiness d riches e escape

**eng/lit**

i think the answer is bbut im unsure

**eng/lit**

What does line 1 intro duce as the narrators sense of A celebration b frustration c abundance d gratification e disorganization in the poem words by vern ratsala

**eng/lit**

In the poem Words by Vern Rutsala,what does the poet imply that humans may suffer?

**eng/lit**

i think it is a similar appreciation for nature because Queen Annes Lace is a plant and bugs are a part of nature. Please let me know if this is correct

**eng/lit**

i have chosen metaphoric for my answer . can you tell me if i am right please

**child development**

I need to know the approach to research(research design) of the psychosocial theory, social learning theory,cognitive-development theory and sociocultural theory of child development. I cannot find this info anywhere

**education**

digital projector could be used like an oberhead and allow students to write on them and allow teachers to connect to a computer and present info to a whole class. Is this good?

**education**

How can a digital camera and a digital projector be used in a classroom to increase students' needs or increase teacher efficiency.

**geology**

WHat are the geologic principles associated with the issue of subsidence from water pumping?

**science**

. How does the principle of uniformitarianism accounts for occasional catastrophic events such as meteorite impacts, huge volcanic eruptions, or great earthquakes? In what ways do geologic processes affect a person's daily life? . When astronauts brought back rock samples ...

**american government**

• What factors make it more likely that a bill will become law? What factors make it less likely?

**American Government**

What are some of the criticism of a democratic style of government ? ...

**math**

I got: 1.900 2. 72 3. $17.28 are these correct?

**math**

Tim needs to apply 21/2 gallons of herbicide per acre of soybeans. How many gallons of herbicide are needed for 360 acres? A worker has readings that take 22/3 minutes each to read and record. How many readings can be completed in 192 minutes? A grocer sold 16 bags of potatoes...

**math**

8.9*10^9 1/15 of an hour 90/9 19/30 x=900 72 $17.28

**art**

Explore the daguerreotype process at The Metropolitan Museum of Art website: In your opinion, what is the most significant difference between the daguerreotype process and modern photography? How do early and modern photos differ in the creative process of image production? 15...

**math**

Calculate the answers |-3-|-7-7|| Does |n+m| = |n|+|m| for all integers na and m? If so, give some examples. If not, give a counterexample. The Weathertalk Analysis Problem. Read the following story about the TV weatherperson and identify as many places as possible that the we...

**Calc**

A lighthouse is fixed 130 feet from a straight shoreline. A spotlight revolves at a rate of 11 revolutions per minute, (22 rad/min ), shining a spot along the shoreline as it spins. At what rate is the spot moving when it is along the shoreline 12 feet from the shoreline point...

**Calc**

opps never mind i got it ... its supposed to be negative that number

**Calc**

The sun is shining and a spherical snowball of volume 210 ft3 is melting at a rate of 14 cubic feet per hour. As it melts, it remains spherical. At what rate is the radius changing after 3 hours? I posted this question before and when i went back and did the math i got 0.09508...

**calc**

The sun is shining and a spherical snowball of volume 210 ft3 is melting at a rate of 14 cubic feet per hour. As it melts, it remains spherical. At what rate is the radius changing after 3 hours?

**ALGEBRA**

y-8= -2(x-2)

**Chem**

Write the balanced net ionic equations for the reaction of a) added H+ and B) added OH- with the components of the acetic acid/sodium acetate buffer solution:

**English**

*****the part "Because they are too emotional"

**English**

Suppose I want to write a sentence: Why not a girl or woman? Because they are too emotional. Is this a grammatically correct way to write it. The part "Because I have to study" is not a complete sentence so am i supposed to add a hyphen??? I totally made this sentenc...

**CALC**

(sqrt(9x+5)-sqrt(68))/(x-7) limit as x approaches 7 the answer i got was .0546 i am not sure if this is right also, if it is ...is there a more exact fraction .... like if the answer was 0.3333333 a better way to write it would be 1/3

**CALC**

i accidentally put the 0 in the wrong place in the above response i had 0.546...

**CALC**

Thank you so much!!

**CALC**

(sqrt(9x+5)-sqrt(68))/(x-7) limit as x approaches 7 the answer i got was .0546 i am not sure if this is right also, if it is ...is there a more exact fraction .... like if the answer was 0.3333333 a better way to write it would be 1/3

**Calc**

(sqrt(9x 5)-sqrt(68))/(x-7) limit as x approaches 7

**algebra**

4/7+n/12 what is n

**Biology**

Is cyanobacteria cocci, spirilla, or bacilli shaped?

**Biology**

WHat is the different between determinate and indeterminate cell differentiation?

**art**

I am trying to answer a question about "Lapinth and centaur, metope" I was trying to answer these questions about it: What is the relationship between the art and the culture of the related civilization? How did that genre of art influence the culture of that civiliz...

**aed204**

• The composition of the faculty, administration, and other staff accurately reflects the pluralistic composition of the United States. • Differences in academic achievement levels disappear between males and females, dominant and oppressed group members, and upper-m...

**algebra**

2x + 3y is less than or equal to 6 solve b=6c for c The length of a rectangle is fixed at 15cm. What widths will make the perimeter greater than 80 cm? solve the compound inequality: 6>-5x + 5 or 10 is less than or equal to -5x+4

**algebra**

5/4x + 1/8x = 3/8 + x = X =

**AED 201**

You're an elementary teacher in a self-contained classroom. You've got a class of 29 lively sixth graders, and you've been struggling all year with classroom management. Damien, a larger than average boy, seems to resist your efforts at every turn. You like science...

**algebra**

2. Examine the rise in gasoline prices from 1997 to 2006. The price of regular unleaded gasoline in January 1997 was $1.26, and in January 2006, the price of regular unleaded gasoline was $2.31 (“Consumer price index,” 2006). Use the coordinates (1997, 1.26) and (200...

**education**

Write a 200-to 300-word response to the following: Assume you are a teacher who would like to address a technology issue at your school. Many of the studnets' textbooks provide Web links for engaging enrichment activities. Each classroom has five computers, but there is o...

**English-Literature**

I think the answer is frustration

**XACC 280 (accounting)**

Yeah thats about it

**XACC 280 (accounting)**

Does anyone have a completed Appendix E- for Axia class XACC 280 Week 4 assignment - Preparing a financial statement worksheet? I am willing to pay for this if I can verify it was completed correctly.

**Algebra 1**

A cheetah is 300 feet from its prey. It starts to sprint toward its prey at 90 feet per second. At the same time, the prey starts to sprint at 70 feet per second. When will the cheetah catch its prey?

**math**

thank you this was correct

**math**

How would I work this problem -6x>1/3 6*13=78 x<-1/78

**math**

so then solution set would be {x|x<-1/18}

**math**

Thanks anyways

**math**

I'm confused

**math**

How would I work this problem -6x>1/3

**math**

How would I work this problem -6x>1/3

**PHYSICS!!**

Thank you ... yes its right

**PHYSICS!!**

An amusement park ride consists of a rotating circular platform 8.26 m in diameter from which 10 kg seats are suspended at the end of 1.14 m massless chains. When the system rotates, the chains make an angle of 16.2 degrees with the vertical. The acceleration of gravity is 9.8...

**Physics**

An amusement park ride consists of a rotating circular platform 8.26 m in diameter from which 10 kg seats are suspended at the end of 1.14 m massless chains. When the system rotates, the chains make an angle of 16.2 degrees with the vertical. The acceleration of gravity is 9.8...

**Physics**

An amusement park ride consists of a rotating circular platform 8.26 m in diameter from which 10 kg seats are suspended at the end of 1.14 m massless chains. When the system rotates, the chains make an angle of 16.2 degrees with the vertical. The acceleration of gravity is 9.8...

**Physics**

It's sliding.... Thank You very much!!!

**Physics**

A spring has a force constant of 478 N/m and an unstretched length of 9 cm. one end is attached to a post that is free to rotate in the center of a smooth table. the other end is attached to a 4kg disc moving in uniform circular motion on the table, which stretches the spring ...

**Bio**

In spite of factors that tend to restrict cell size, some plant cells are very large. For example, some marine algae have cells almost as large as a chicken egg which of the following characteristics would favor the growth of large cells? 1- thin layer of cytoplasm inside the ...

**Bio**

In spite of factors that tend to restrict cell size, some plant cells are very large. For example, some marine algae have cells almost as large as a chicken egg which of the following characteristics would favor the growth of large cells? 1- thin layer of cytoplasm inside the ...

**Essay for College Appl**

Thank You soo much!!

**Essay for College Appl**

--- I want to say something along the lines of ...even though it may make a little difference it still is a difference. any suggestions on how to say this intelligently?

**AP BIO**

a scientist plans to use a microtome to cut sections of a particular type of tissue so then that typical cell will be cut into about 20 sections. to help him make careful observation of internal cell structures, he considers staining the sections with a dye. which of the follo...

**math**

Soybean milk in 18% protein; cornmeal is 19% cornmeal. How many pounds of each should be mixed together in order to get 360-lbs. mixture that is 15% protein?

**AP BIO**

but how would this be revealing if they all have the glycosidic bonds? wouldn't that just be harder to differentiate them?

**AP BIO**

a student wished to test a sample of organic material to determine whether it was sugar, a dat, or starch. If she could perform only one of the following, which would be the most revealing? 1- test for the presence of carbon and hydrogen in the sample 2- test the sample to det...

**Algebra**

Your right!!!

**Physics**

Two points in the xy plane have cartesian coordinates (4.6,-10) and (-10,3.2) I found the distance to be 19.68 but i need to find the angle between the line connecting the two points and the x-axis (measured counterclockwise from the x-axis) within the limits of -180 and +180 ...

**science**

i think B but not completely sure

**physics**

A car travels 1.72 km in the x direction, then turns left 50.4 degrees to the original direction and travels an additional distance of 1.97 km. Calculate the x component of the car's net displacement. Answer in units of km.

**Physics**

A truck travels beneath an airplane that is moving 100 km/h at an angle of 49 degrees to the ground. A) how fast must the truck travel to stay beneath the airplane? Answer in units of km/h The answer I got was 65.6 km/h, but i just wanted to make sure someone else got the same...

**Physics**

a plane travels 1.3 km at an angle of 28 degrees to the ground, then changes direction and travels 6.8 km at an angle of 20 degrees to the ground. A) What is the magnitude of the plane's total displacement? answer in units of km. B) At what angle above the horizontal is th...

**Physics**

Thanks!

**Physics**

I am confused about where the 49 came from... is it supposed to be 47 ?

**Physics**

Bob heads out into a lake at an angle of 47 degrees with respect to the shore. If his boat is capable of a speed of 2.9 m/s how far from the land will he be in 3 min. and 24 sec.? Answer in units of m.

**physics**

not sure if i calculated right but is 1562 m the right answer : /

**physics**

two airplanes leave an airport at the same time. the velocity of the first airplane is 700 m/h at a heading of 52.2degrees . the velocity of the second is 600 m/h at a heading of 97 degrees . how far apart are they after 3.1 h? answer in units of m.

**ALGEBRA 1**

2x+2+2=3x-4 4+4=x x=8

**math**

take a kite for example there are 2 paris of congruent lengths, but they are obviously not parallel. hope that helps

**physics**

two airplanes leave an airport at the same time. the velocity of the first airplane is 700 m/h at a heading of 52.2degrees . the velocity of the second is 600 m/h at a heading of 97 degrees . how far apart are they after 3.1 h? answer in units of m.

**chemistry**

The molar mass of sucrose, or table sugar, is 342 grams. Calculate how many grams of sucrose are required to make 3.0 liters of 0.50M sucrose solution.

**chemistry**

If H2SO4 were added to the following, would it form a salt, if so what is the name of the salt? NaCl Ca(OH)2 Hf AlCl3 H2O Mg(OH)2

**Chemistry**

If you add hydrochloric acid (HCl) to magnesium (Mg) metal, what will you observe?

**chemistry**

If you add hydrochloric acid (HCl) to magnesium (Mg) metal, what will you observe? What products form in this reaction?

**chemistry**

How many moles of Na2CrO4 are contained in 74.3g of compount?

**Chem**

How do you balance the following: KI->K + I2 Na + H2O -> H2 + NaOH Ch4 + O2 -> CO2 + H2O

**Chem**

the categories are: synthesis, decomposition, single replacement, double replacement, and combustion.

**Chem**

Use the reaction that occurs when magnesium burns in oxygen to show how a reaction might be included in more than one category of reaction.

**chemistry**

In a certain chemical reation, two reactants undergo change to form two products. Why can't you determine what type of reaction occurred from this information?

**health**

What is the PaO2 of H2O?

**chemistry**

Why is water a liquid but carbon dioxide a gas at room temperature.

**Chem**

Partial pressure of oxygen in arterial blood.

**Chem**

What is the PaO2 of H2O