Homework Help

Science

Why does very little erosion occur in areas next to rivers where many trees grow?

Posted by user7233498 on May 24, 2013 at 3:32 AM via web. 1 educator answer.

Science

A scuba diver uses his waterproof flashlight to shine a beam of light so that it strikes the surface of the...

Posted by tmrenk95 on May 24, 2013 at 1:19 AM via web. 1 educator answer.

Science

If you react 65.5 grams of sodium and 102 grams of chlorine, how many grams of sodium chloride are produced?

Posted by persianimmortal on May 23, 2013 at 9:32 PM via web. 1 educator answer.

Science

Can you help explain the impact of the cholera outbreak in Haiti on the broader environment?

Posted by danielb77 on May 23, 2013 at 8:07 PM via web. 1 educator answer.

Science

Help me study for my science test please! :) 1) Describe the processes for generating electricity using coal and...

Posted by natalie25948421 on May 23, 2013 at 5:20 PM via web. 1 educator answer.

Science

Prove if cosine(a+b+c)=1, then sin(2a+b+c)=sina?

Posted by elahusb on May 23, 2013 at 5:11 PM via web. 1 educator answer.

Science

What are the types of force?

Posted by user6535214 on May 23, 2013 at 3:16 PM via web. 1 educator answer.

Science

plants are essential to shoreline preservation.Consider a body of water that has plants on the shoreline.it can...

Posted by adilyas on May 23, 2013 at 3:06 PM via web. 1 educator answer.

Science

What is E(t) if the phasor is 1 - j in field E(t) = {Ee^(j omega letter t)}?

Posted by luvgoj on May 23, 2013 at 2:48 PM via web. 1 educator answer.

Science

 describe briefly the role of plants in the cycling of carbon, nitrogen and phosphorus

Posted by nadaazer on May 23, 2013 at 2:19 PM via web. 1 educator answer.

Biology

Why do monocots have flower parts in threes or in multiples of threes?

Posted by rainbow224 on May 23, 2013 at 10:32 AM via web. 1 educator answer.

Biology

Can wheat plants be called trimerous plants?   

Posted by rainbow224 on May 23, 2013 at 10:30 AM via web. 1 educator answer.

Science

Respected Sir/Madam Please help me with Que. 3 as shown in the image. (1 image)

Posted by user8235304 on May 23, 2013 at 9:13 AM via web. 1 educator answer.

Science

S(s) + O2(g) –> SO2(g) DeltaH= -296kJ/mol a) How much heat is ev. when 275g sulfur is burned in excess O2?...

Posted by jokojoko on May 23, 2013 at 5:21 AM via iOS. 1 educator answer.

Science

Responses to light are critical for plant survival . Consider a sprouting plant left in a closet with only a...

Posted by ninaesl on May 23, 2013 at 4:34 AM via web. 1 educator answer.

Science

What is Tangent law of magnetism?

Posted by spsaroj on May 23, 2013 at 3:29 AM via web. 1 educator answer.

Psychiatry

Describe the clinical presentation of someone with a Factitious Disorder

Posted by newspapers on May 23, 2013 at 1:41 AM via web. 1 educator answer.

Science

write the balanced chemical equation for photosynthesis and then describe the process in words?

Posted by casa9 on May 22, 2013 at 9:01 PM via web. 1 educator answer.

Science

calculate the molar concentration of a brine solution containing 225g of pure sodium chloride dissolved in 4.00L...

Posted by deborahgalley on May 22, 2013 at 2:02 PM via web. 1 educator answer.

Science

A sample of drinking water has a chlorine concentration of 1.4 ppm calculate the mass in grams of chlorine ions...

Posted by deborahgalley on May 22, 2013 at 2:00 PM via web. 1 educator answer.

Science

How can a law that attempts to stop the movement of foreign-grown firewood and Christmas trees into Canada...

Posted by adilyas on May 22, 2013 at 1:55 PM via web. 1 educator answer.

Science

provide two advantages and two disadvantages for each type of reporoduction(sexual and asexual re)production

Posted by asmaspring on May 22, 2013 at 1:51 PM via web. 1 educator answer.

Science

What structure in plants allows them to produce their own food?

Posted by nadaazer on May 22, 2013 at 1:49 PM via web. 1 educator answer.

Science

How are elements arranged on the periodic table? What happens in groups and periods?

Posted by jennanicolez on May 22, 2013 at 12:01 PM via iOS. 1 educator answer.

Biology

Which unit cell processes are responsible for bone ingrowth?

Posted by medausza on May 22, 2013 at 11:11 AM via web. 1 educator answer.

Chemistry

if 21.8g of c4h8 is burnt in the air, calculate mass of carbon dioxide formed?

Posted by gracie310795 on May 22, 2013 at 10:49 AM via web. 1 educator answer.

Science

When 1.50 mol CO_2 and 1.50 mol H_2 are placed in a 0.750-L container at 395^0 C,  `CO_2(g) + H_2(g)harrCO(g) +...

Posted by roshan-rox on May 22, 2013 at 7:12 AM via web. 1 educator answer.

Science

Gaseous hydrogen iodide is placed in a closed container  at 425^0 C, Where it partially decomposes to hydrogen...

Posted by roshan-rox on May 22, 2013 at 7:06 AM via web. 1 educator answer.

Science

For the formation of NH_3 from N_2 and H_2 , N_2(g)+3H_2(g)----->2NH_3(g),     K_p = 4.34 *10^-3 at 300^0...

Posted by roshan-rox on May 22, 2013 at 6:57 AM via web. 1 educator answer.

Science

For the reaction `H_2 (g) +I_2(g) harr2HI_(g)` at `K_p =794` at 298K and `K_p=54` at 700K. Is  the formation of...

Posted by roshan-rox on May 22, 2013 at 6:51 AM via web. 1 educator answer.

Perception

If you suddenly lost all perceptual constancies, what specific problems would you have?

Posted by user84631 on May 22, 2013 at 2:08 AM via web. 1 educator answer.

Science

Constipation is a health condition that is caused by lifestyle choice.  Identify one specific body system that...

Posted by ninaesl on May 22, 2013 at 12:37 AM via web. 1 educator answer.

Science

What was Marc Garneau's contribution to space?

Posted by brandih on May 21, 2013 at 10:18 PM via web. 1 educator answer.

Science

What is the solar radiation

Posted by studentcookiegood13 on May 21, 2013 at 9:45 PM via iOS. 1 educator answer.

Science

What does a scientist do in a well planned and controlled experiment? 

Posted by nya-fame on May 21, 2013 at 8:40 PM via web. 1 educator answer.

Ouchterlony Test

How can the Ouchterlony Test be used to confirm what species a blood sample belongs to? What results would be seen?

Posted by johnnyforeigner on May 21, 2013 at 7:33 PM via web. 1 educator answer.

Science

Photoelectric effect Would an increase in frequency have (no effect/decrease/increase) on the speed  of the...

Posted by rockstar195699 on May 21, 2013 at 5:56 PM via web. 1 educator answer.

Science

How long will it take for radioisotope Technetium 99 to decrease to 0.0001%?  

Posted by techmicha on May 21, 2013 at 5:13 PM via web. 1 educator answer.

Science

Determine the energy (in MeV) required to remove a single neutron in 56 26Fe?  

Posted by gnollgnoll on May 21, 2013 at 4:50 PM via web. 1 educator answer.

Science

why H2SO4 absorbs water? as it is not a sponge like material, it is an acid.so,how does it absorbs water? and...

Posted by hiani on May 21, 2013 at 4:48 PM via web. 1 educator answer.

Science

Explain which isotope of cerium is the most abundant?

Posted by elahusb on May 21, 2013 at 4:39 PM via web. 1 educator answer.

Science

What is the process of hormonal control of the female reproductive cycles? Give details information on how IVF...

Posted by jasma82 on May 21, 2013 at 4:26 PM via web. 1 educator answer.

Science

When you walk across a carpet during the winter you often get a shock when you touch a metal door knob. The...

Posted by littlecomet1992 on May 21, 2013 at 4:05 PM via web. 1 educator answer.

Science

Prove the blue light of wavelength, l = 444 nm, is not capable of exciting electrons in Li2+(g) from n = 2 to n...

Posted by mccee on May 21, 2013 at 3:07 PM via web. 1 educator answer.

Science

What is balanced reaction of magnesium with hafnium tetrachloride by the Kroll Process? 

Posted by edmonded on May 21, 2013 at 2:25 PM via web. 1 educator answer.

Science

What does d, y, t represents in the equation acceleration(a)= (d^2 y)/ (dt^2)?

Posted by spsaroj on May 21, 2013 at 10:24 AM via web. 1 educator answer.

Science

How would I select what topic to write about for a long descriptive essay telling what it is, how it is used,...

Posted by honeybunny27 on May 21, 2013 at 8:23 AM via web. 1 educator answer.

Science

Isomers have different A empirical formulae. B molecular formulae. C skeletal formulae. D molar masses.  

Posted by roshan-rox on May 21, 2013 at 8:10 AM via web. 1 educator answer.

Science

We have an experiment to determine how the rate of a chemical reaction changes as the concentration of one of...

Posted by beablanca123 on May 21, 2013 at 7:43 AM via web. 1 educator answer.

Science

Calcium reacts with water as shown. Ca(s) + 2H2O(l) → Ca(OH)2(aq) + H2(g) What is the total mass of the...

Posted by chisko12 on May 21, 2013 at 5:56 AM via web. 1 educator answer.