Science Homework Help

Research on the topic of "Existence of a Parallel Universe" and the scientific evidence to support it. Present your research in a creative...

Posted by amitkmittal1 June 19, 2013 at 7:35 AM via web. Be the first to answer. »

Physics Activity -Plot and interpret the Distance–Time graph for a train assuming that its motionbetween any stations is uniform. Also make...

Posted by user1747488 June 19, 2013 at 5:04 AM via web. Be the first to answer. »

Question: Suppose you are a game developer in a company and you have been given the task to develop a game which should fulfill all...

Posted by loverboy007 June 19, 2013 at 3:20 AM via web. Be the first to answer. »

The volume of a solid can be calculated from its dimensions, if it is a regular shape and is free of air space.  How can the volume of an...

Posted by stevenbawi103 June 19, 2013 at 1:32 AM via web. 2 educator answers. »

what is the spring constant of a spring with retractable tip pen that stores 0.008J potential energy when compressed by 1cm.

Posted by lak-86 June 19, 2013 at 12:56 AM via web. 1 educator answer. »

How are photosynthesis and cellular respiration related?

Posted by laserthend June 19, 2013 at 12:35 AM via iOS. 1 educator answer. »

Two hypothetical ionic compounds are discovered with the chemical formulas XCl2 and YCl2, where X and Y represent symbols of the imaginary...

Posted by lak-86 June 19, 2013 at 12:35 AM via web. 1 educator answer. »

Please give me 2 examples of biotic factors in an ecosystem and abiotic factors in ecosystem (2 each please)

Posted by laserthend June 19, 2013 at 12:33 AM via iOS. Be the first to answer. »

A minute sample of AlCl3 is analyzed for chlorine. The analysis reveals that there are 24 chloride ions present in the sample. Find the amount...

Posted by lak-86 June 19, 2013 at 12:30 AM via web. 1 educator answer. »

Brown hair(B) is dominant to blonde hair(b) and curly hair(H) is dominant to straight hair(h). A woman who is hybrid for both brown hair and...

Posted by islnds June 18, 2013 at 10:43 PM via web. 1 educator answer. »

Meiosis is the division of a cell resulting in genetic diversity/ variability. Explain what happens in Meiosis to make this statement true...

Posted by islnds June 18, 2013 at 9:29 PM via web. 1 educator answer. »

Haemophilia is a recessive X-linked trait. A man who does not have hemophilia marries a woman who is a carrier. what is the probablity,...

Posted by islnds June 18, 2013 at 9:24 PM via web. 1 educator answer. »

Why is fire considered important in agriculture? If fire didn't exist why would there be a decline in agriculture?

Posted by dotta12345 June 18, 2013 at 2:08 PM via web. 1 educator answer. »

which has a better scope biomedical engineering or food processing technology?

Posted by loniye June 18, 2013 at 1:34 PM via web. Be the first to answer. »

Why do some sensory adapters develop slowly and others develop rapidly?

Posted by anat-n-phys June 18, 2013 at 7:27 AM via iOS. 1 educator answer. »

What is referred pain and how is it useful in diagnosing internal disorders?

Posted by anat-n-phys June 18, 2013 at 7:25 AM via iOS. 1 educator answer. »

What is the term potentiation?

Posted by anat-n-phys June 18, 2013 at 7:24 AM via iOS. 1 educator answer. »

What is the reproductive purpose of fruits?

Posted by jessjess123 June 18, 2013 at 12:26 AM via web. 1 educator answer. »

As a race car approaches a fan in the stand the fan hears the noise of the engine 323Hz. As the car recedes he hears the noise at 278Hz.If...

Posted by lak-86 June 17, 2013 at 8:04 PM via web. 1 educator answer. »

4HCl(g) + O2 <---> 2H2O(g) + 2Cl2(g)  HCl and O2 ratio of mole is 4:1. Cl2 concentration is 0.5 mol dm^-3 in equilibrium state, and the...

Posted by shihan June 17, 2013 at 5:36 PM via web. 1 educator answer. »

Explain with a diagram how mushrooms reproduce.

Posted by islnds June 17, 2013 at 5:04 PM via web. 1 educator answer. »

What is the known  number of amino acids that form proteins ?

Posted by kikilex June 17, 2013 at 4:43 PM via web. 1 educator answer. »

Was uranium named after uranus or the other way around, and the same as mercury and the planet mercury?

Posted by izzy60 June 17, 2013 at 3:39 PM via iOS. 1 educator answer. »

What is oligo peptide ?

Posted by vladius June 17, 2013 at 3:37 PM via web. 1 educator answer. »

Describe importance of the R group in amino acid molecule ?

Posted by jamnette June 17, 2013 at 3:34 PM via web. 1 educator answer. »

A small meteor approaches the earth. When it is at a large distance it has velocity V∞ and impact parameter b. If Re is the radius of the...

Posted by lak-86 June 17, 2013 at 11:56 AM via web. 1 educator answer. »

Explain why it is not advisable to use aqueous sodium cloride solution as the salt bridge in the electrochemical cell formed between half...

Posted by sarahokoth June 17, 2013 at 7:05 AM via web. 1 educator answer. »

Describe the function and mechanism of a crossed extensor reflex.

Posted by anat-n-phys June 17, 2013 at 4:16 AM via iOS. 1 educator answer. »

Describe the function and mechanism of a stretch reflex?

Posted by anat-n-phys June 17, 2013 at 4:15 AM via iOS. 1 educator answer. »

Describe the anatomy and physiology of a tendon reflex.

Posted by anat-n-phys June 17, 2013 at 4:13 AM via iOS. 1 educator answer. »

How bacteria change their genetic properties and how these changes spread so quickly through the population?

Posted by islnds June 17, 2013 at 12:29 AM via web. 1 educator answer. »

Physics Forces Question - Please check the attached picture. (1 image)

Posted by supersmartpants June 16, 2013 at 9:48 PM via web. 2 educator answers. »

Describe the relationship between viruses and bacteria?

Posted by islnds June 16, 2013 at 9:43 PM via web. 1 educator answer. »

Humans compete with other animals(e.g insects) for valuable resources. Give one example to support this statement?

Posted by islnds June 16, 2013 at 9:33 PM via web. 1 educator answer. »

If it is given as "Same moles of reactants has taken as the initial moles" what should we use as initial moles? is it correct to use like "a"...

Posted by shihan June 16, 2013 at 5:15 PM via web. 1 educator answer. »

Explain what is allele?  

Posted by luvgoj June 16, 2013 at 4:29 PM via web. 1 educator answer. »

Do chromosomes only form during mitosis? Are chromosomes ever present during interphase in an animal?

Posted by gty7enoter June 16, 2013 at 6:09 AM via web. 1 educator answer. »

What is meant when biologists say "DNA replication"? Does this mean that chromosomes are replicated internally within the cell nucleus?

Posted by gty7enoter June 16, 2013 at 6:07 AM via web. 1 educator answer. »

If the atmosphere is assumed to be composed of a layer of air of uniform density, 1.23 kg  m-3, calculate its height if it produces a...

Posted by lak-86 June 16, 2013 at 3:12 AM via web. 1 educator answer. »

A typical value for the atmospheric pressure on Earth is 101 kPa. The surface area of the Earth A, is related to its mean radius R by the...

Posted by lak-86 June 16, 2013 at 3:12 AM via web. 1 educator answer. »

A car tyre is slowly pumped up to a pressure of 2atm in an environment at 15C. at this point it bursts. Assuming the sudden expansion of the...

Posted by lak-86 June 16, 2013 at 3:12 AM via web. 1 educator answer. »

A ball of mass 0.50 kg is thrown straight up into the air at a speed of 24 m/s from a heightof 32 m. a) Find I) the maximum height of the ball...

Posted by supersmartpants June 15, 2013 at 7:54 PM via web. 1 educator answer. »

Is it true or false that a satellite in orbit around the Earth pulls just as hard on the Earth as the Earth pulls on the satellite.

Posted by user8785750 June 15, 2013 at 5:35 PM via web. 1 educator answer. »

PCl5(g) <------> PCl3(g) + Cl2(g) if Kc of this reaction is 0.5 moldm^-3  in 500K , then what is the Kp? (I know the equation to slove...

Posted by shihan June 15, 2013 at 3:28 PM via web. 1 educator answer. »

(Electricity) How do I find the current for L1(lamp 1)? And the voltage for R1 and the resistance for R1 (1 image)

Posted by tjjavid June 15, 2013 at 1:17 PM via web. 1 educator answer. »

A certain force F applied to a particle of mass m1 gives it an acceleration of 4 m/s^2 and the same force when applied on mass m2 gives an...

Posted by spsaroj June 15, 2013 at 12:49 PM via web. 1 educator answer. »

which property of water is responsible for formation of land and sea breeze?  

Posted by user7668887 June 15, 2013 at 9:44 AM via web. 1 educator answer. »

This is an electricity question. What is the total resistance and current? what is the voltage over R2? (1 image)

Posted by t4trendesetter June 15, 2013 at 8:38 AM via web. 1 educator answer. »

How can we explain poetry and science?

Posted by arjun June 15, 2013 at 6:45 AM via web. 1 educator answer. »

A cannon ball is fired from top of a building at an angle 30 degree above horizontal with speed 60 m/s.Another cannon ball is projected from...

Posted by user8235304 June 15, 2013 at 4:26 AM via web. 3 educator answers. »