Homework Help

Science

which organs are found in which regions of the human body?

Posted by atracy1 on May 19, 2013 at 2:18 PM via web. 1 educator answer.

Science

What is chemical formula for ionic compound with S r &Br .

Posted by jamnette on May 19, 2013 at 2:03 PM via web. 1 educator answer.

Science

Photoelectric effect . What happens to the kinetic energy of the electrons as the intensity of the incident...

Posted by rockstar195699 on May 19, 2013 at 9:46 AM via web. 1 educator answer.

Physics

An object is 2.3 cm tall, and 5.5 cm from a converging lens.  The image is upright and 9.0 cm tall.  What is...

Posted by lkehoe on May 19, 2013 at 5:52 AM via web. 1 educator answer.

Physics

Light enters a substance from air at 45.0 degrees to the normal.  It continues through the substance at 34.7...

Posted by lkehoe on May 19, 2013 at 5:47 AM via web. 1 educator answer.

Physics

An optic fiber is made of clear plastic with index of refraction of 1.50.  For what angles of incidence will...

Posted by lkehoe on May 19, 2013 at 5:45 AM via web. 1 educator answer.

Physics

Light is passing through a transparent material at an angle of 63 degrees.  The material has an index of...

Posted by lkehoe on May 19, 2013 at 5:43 AM via web. 1 educator answer.

Science

A car of mass 1400 kg is travelling at 25 m/sThe kinetic energy of the car is   A) 17.5 kJ   B) 35.0 kJ  ...

Posted by roshan-rox on May 19, 2013 at 5:28 AM via web. 1 educator answer.

Science

An object of weight 7 N is raised from a height of 2 m to a height of 8 m.The change in gravitational potential...

Posted by roshan-rox on May 19, 2013 at 5:27 AM via web. 1 educator answer.

Science

What is the difference between pitch and frequency?

Posted by maryam-ahmad on May 19, 2013 at 3:39 AM via iOS. 1 educator answer.

Science

What is the differences between calcination and roasting?

Posted by spsaroj on May 19, 2013 at 2:54 AM via web. 1 educator answer.

Science

Examples of animals with one, two, and three chambered hearts. Compare the efficiences of these with the human 4...

Posted by em444 on May 19, 2013 at 12:23 AM via web. 1 educator answer.

Science

Examples of animals with open circulation systems. Compare these system with the human closed system.

Posted by timid1995 on May 19, 2013 at 12:21 AM via web. 1 educator answer.

Science

Compare and contrast passive transport system (like cnidarian) with active transport systems such as the human...

Posted by law222 on May 19, 2013 at 12:17 AM via web. 1 educator answer.

Science

Explain the principle of diffusion and active transport in relation to human circulation?

Posted by mark222 on May 19, 2013 at 12:07 AM via web. 1 educator answer.

Science

H2CO3, write the expression for Ka for the acid. Assume only one hydrogen is ionized.  

Posted by bubblelots101 on May 18, 2013 at 10:11 PM via web. 1 educator answer.

Crime Scene Investigation

What are the four general expectations that may distort perception?

Posted by kc76384 on May 18, 2013 at 9:32 PM via web. 1 educator answer.

Science

You are a nurse screeing a patient who has been complaining of heartburn. heartburn is a burning sensation in...

Posted by ninaesl on May 18, 2013 at 8:29 PM via web. 1 educator answer.

Asthenosphere

I think you made a mistake about the depth of asthenosphere as reported here (6050 mi it's too much). The whole...

Posted by user7132327 on May 18, 2013 at 2:59 PM via web. 1 educator answer.

Language

Do we need to understand the nature of Second Language (L2) writing in order to teach either the L2 writing or...

Posted by hjyhjy on May 18, 2013 at 2:05 PM via web. 1 educator answer.

Science

Electromagnetic waves have a wave and partical nature.This is known as wave duality. 1) Describe the situation...

Posted by rockstar195699 on May 18, 2013 at 5:33 AM via web. 1 educator answer.

Chemistry

Given a saturated solution of sodium acetate, outline the procedure you could use to determine the SOLUBILITY of...

Posted by quinnellow on May 18, 2013 at 2:14 AM via web. 1 educator answer.

Science

Explain the temperature and energy changes that take place during the exothermic and endothermic reactions.  

Posted by jasma82 on May 17, 2013 at 9:21 PM via web. 2 educator answers.

Astronomy

What evidence exists that the universe is changing?

Posted by jasma82 on May 17, 2013 at 8:48 PM via web. 1 educator answer.

Science

  Compare and contrast the subject-centered approach of teaching science with an interdisciplinary approach...

Posted by flour on May 17, 2013 at 7:04 PM via web. 1 educator answer.

Science

calculate the maximum value of electric field intensity, E. the answer is 10% of dielectric strength. But i want...

Posted by rocky.goyal on May 17, 2013 at 5:14 PM via web. Be the first to answer.

Science

What current flows between the equatorial currents?

Posted by user7437406 on May 17, 2013 at 5:13 PM via web. 1 educator answer.

Nuclear Power

Why is nuclear power important ?

Posted by user293999 on May 17, 2013 at 3:33 PM via web. 1 educator answer.

Crime Scene Investigation

What methods did the interview of Russell Williams use or not use and why was this method the best one used in...

Posted by kc76384 on May 17, 2013 at 3:01 PM via web. 1 educator answer.

Science

how does a stirling engine work?

Posted by jk3246 on May 17, 2013 at 10:46 AM via web. 1 educator answer.

Science

what is the difference between oxidation state and oxidation number?

Posted by chandreyee123 on May 17, 2013 at 9:12 AM via web. 1 educator answer.

Anatomy

Directional terms- Quadrupeds 1. In a dog, the brain is ___________ to the heart. 2. In a cat, the spinal cavity...

Posted by mkwhitworth on May 17, 2013 at 3:11 AM via web. Be the first to answer.

Science

descibe how the digetive system is linked with one of the two systems: circulatory, respiratory.

Posted by asmaspring on May 17, 2013 at 1:32 AM via web. 1 educator answer.

Science

In a short paragraph, describe the process of gas exchange in the lungs, including the section of the...

Posted by adilyas on May 17, 2013 at 1:26 AM via web. 1 educator answer.

Science

a female air traffic controller who works very long hours is aged 45 and has had blood pressure readings of...

Posted by nadaazer on May 17, 2013 at 1:19 AM via web. 1 educator answer.

Science

Respiratory system describe in a flow chart  or a list the path that air travels as it is inhaled . start with...

Posted by ninaesl on May 17, 2013 at 1:11 AM via web. 1 educator answer.

Science

A) Can you write the basic reason of resonance? Is there any role of natural frequency in this phenomenon or...

Posted by bc120201195 on May 17, 2013 at 1:05 AM via web. Be the first to answer.

Science

How useful is the plastic synthesized from casein isolated from milk using vinegar? (How sturdy/strong is it and...

Posted by Wilson2014 on May 16, 2013 at 11:59 PM via web. 1 educator answer.

Science

What are three examples that illustrate the adoption of sound gaseous waste management principles???

Posted by lovely106 on May 16, 2013 at 7:15 PM via web. Be the first to answer.

Science

what is potential difference for an electron to be accelerated to 0.25n m ?

Posted by snsett on May 16, 2013 at 6:01 PM via web. 1 educator answer.

Science

Is it true or wrong that a point on a wheel rotates from 12 o’clock to 3 o’clock, so its angular...

Posted by sami112233 on May 16, 2013 at 5:27 PM via web. 1 educator answer.

Science

How do humans impact nitrogen, carbon, phosphorus?  

Posted by user3483077 on May 16, 2013 at 4:04 PM via web. 1 educator answer.

Crime Scene Investigation

How can a witness’ memory be manipulated or distorted after the event?

Posted by kc76384 on May 16, 2013 at 2:48 PM via web. 1 educator answer.

Crime Scene Investigation

What issues inherent in the witnessed incident may affect the witness’ testimony?

Posted by kc76384 on May 16, 2013 at 2:48 PM via web. 1 educator answer.

Crime Scene Investigation

Why is it important to understand the background of an eyewitness’ testimony?

Posted by kc76384 on May 16, 2013 at 2:47 PM via web. 1 educator answer.

Science

what are the 5 chemical eq with heated sulphur ?

Posted by jamnette on May 16, 2013 at 2:09 PM via web. 1 educator answer.

Science

Describe the mechanism by which the three types of RNA interact to make sure that amino acids are placed in the...

Posted by zem107 on May 16, 2013 at 12:52 PM via web. 1 educator answer.

Science

The solubility of MnSO4 in water at 20 degrees celcius is 70 g per 1000 mL of water. Is a 1.22 M solution of...

Posted by spock10 on May 16, 2013 at 11:56 AM via web. 1 educator answer.

Science

The vapor pressure of water at 338 K is 187.5 torr. Calculate the vapor pressure of water above a solution...

Posted by spock9 on May 16, 2013 at 11:18 AM via web. 1 educator answer.

Science

A compound is 42.9% C, 2.4% H, 16.7% N and 38.1% O by mass. Addition of 6.45 g of this compund to 50.0 mL...

Posted by spock8 on May 16, 2013 at 11:15 AM via web. 1 educator answer.