Science Questions and Answers

Science

This would depend upon the nature of the failure of the two systems. The CV system would be monitored through normal criteria, starting with pulse, blood pressure, oxygen saturation. Then heart...

Latest answer posted June 2, 2009, 4:16 am (UTC)

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Science

To find the anti derivative of y=e^x/(5+e^x) we use substitution. Let y = 5 + e^x dy = e^x * dx Int[ e^x/(5+e^x) dx] => Int [(1/y) dy] => ln |y| + C substitute y = 5 + e^x => ln |5 + e^x|...

Latest answer posted April 8, 2011, 3:02 pm (UTC)

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Science

The skin is a fairly difficult barrier for viruses and bacteria to cross, and is our first line of defense. Tears not only lubricate the eye, but help it to continually flush out debris. The nose...

Latest answer posted February 15, 2010, 10:00 am (UTC)

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Science

There are many more ways than you might think to become an astronaut. You don't necessarily have to study aeronautical engineering because there are many different types of jobs on a space mission....

Latest answer posted February 20, 2010, 12:55 am (UTC)

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Science

The "Go Green" movement is the latest movement to encourage less waste, more recycling, and less harmful impact on the environment. The pros of this movement should be obvious; anything that will...

Latest answer posted May 8, 2012, 1:25 am (UTC)

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Science

In a transformer if voltage and number of turns in primary are Vp and Np respectively and voltage and number of turns in secondary are Vs and Ns respectively, Vs/Vp = Ns/Np Therefore voltage coming...

Latest answer posted May 16, 2012, 6:23 am (UTC)

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Science

Living things require energy which enters ecosystems as light and exits for the most part as heat. A food chain or web is a diagram that shows feeding relationships among members of a community. In...

Latest answer posted January 27, 2016, 2:14 am (UTC)

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Science

Bacteria have many beneficial uses. Bacteria are used in yogurts and supplements. It can also be used in environmental cleanup, such as in the recent oil spill. Bacterial photosynthesis was used...

Latest answer posted October 11, 2011, 2:52 pm (UTC)

1 educator answer

Science

Hello! Yes, this probability is an integral from `12 - 0.2 = 11.8 nm` to 1`2 + 0.2 = 12.2 nm.` There are two problems: what is the function to integrate and what is the value of the integral. It is...

Latest answer posted July 16, 2016, 7:31 am (UTC)

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Science

I imagine that your own text or the movie you watched (or whatever your source of information is) tells you the answer you are supposed to come up with. I hope that the study that I have linked to...

Latest answer posted December 4, 2010, 1:15 am (UTC)

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Science

A disease causes malfunction of body systems and has specific signs and symptoms. Diseases may be caused by external causes in the case of infectious diseases or can be caused by internal...

Latest answer posted November 17, 2010, 7:25 am (UTC)

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Science

An orchestral performance is ful of physics concepts. The design of the hall deals with acoustics - how waves interact with different surfaces and how to make sure that there are no dead spots in...

Latest answer posted November 19, 2010, 7:20 am (UTC)

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Science

You mentioned that this question is in regards to intravenous medications. Can I assume that you are talking about the dsg. that is on top of a IV site? If this is the case and you need to change...

Latest answer posted May 25, 2010, 6:39 pm (UTC)

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Science

Enterococci (the plural form of the word) are part of the intestinal area of people. According to scientist there are over 17 species in humans and E. faecalis & E. faecium are the most common....

Latest answer posted October 29, 2011, 7:11 am (UTC)

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Science

Bacteria can be beneficial to us and can also be really harmful. Some of the natural applications of bacteria include nutrient fixation in soils, natural cleaning of surface water bodies like...

Latest answer posted November 13, 2015, 4:42 am (UTC)

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Science

Suppose the treadmill starts from 0 velocity. Using `v = u+at` `t = 60*4.2 = 252 seconds` `v = 0+0.0044*252 = 1.1088m/s` So the velocity is 1.1088m/s

Latest answer posted October 11, 2012, 1:04 am (UTC)

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Science

Friction is a force that opposes motion and yet it's necessary for some types of motion. When you walk, your foot pushes back on the floor and the floor pushes your foot forward. Friction is the...

Latest answer posted December 6, 2015, 5:59 am (UTC)

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Science

Bleeding after intercourse could be due to trauma to the skin in the vaginal tract. The friction of intercourse can cause this trauma. Heavy bleeding right after intercourse is something you...

Latest answer posted May 24, 2010, 3:42 am (UTC)

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Science

Let us say when boy catch the bus the bus has run xm from its initial position. So at that time boy runs (48+x)m. Let us say the time taken to catch the bus is t. For bus `S = ut+1/2xxaxxt^2` `x =...

Latest answer posted June 6, 2013, 10:50 am (UTC)

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Science

One can think of global ocean conveyor belt as the movement of warm surface water towards the poles and the movement of colder water (near the ocean floor) towards the equator. This constant motion...

Latest answer posted February 27, 2016, 2:23 pm (UTC)

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Science

Two types of stroke(CVA) cerebrovascular accident exist, the first type is a hemorrhagic stroke. This is when a blood vessel in the brain ruptures and blood is leaked into the cerebral tissue. The...

Latest answer posted June 10, 2010, 2:09 am (UTC)

2 educator answers

Science

You can't get rid of pores, but then, you wouldn't want to. Pores perform highly necessary functions for the body, and are essential for the health of the skin. To name but two, they allow oils to...

Latest answer posted November 12, 2008, 9:18 am (UTC)

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Science

Before we can use the integrated rate law we must first find the rate constant for the reaction. We can use the half life equation for a second order reaction: t = 1/(k[A']) where t is the half...

Latest answer posted December 7, 2012, 1:38 am (UTC)

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Science

Think of the registry in your computer as compartments in a mail room. The postmaster sorts the mail and puts each item of mail in a particular spot everytime. Then, the recipient of the mail in...

Latest answer posted November 18, 2009, 12:34 pm (UTC)

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Science

The electron transport chain is a way building energy for plants and producing energy for animals. It involves similar processes in both plant and animal cells, each using the other's waste...

Latest answer posted February 10, 2012, 2:59 am (UTC)

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Science

Risk factorsThese factors increase the likelihood of your having an addiction to a legal or an illegal drug: Personality. If you have another psychological problem, such as depression,...

Latest answer posted December 14, 2008, 10:12 am (UTC)

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Science

Essentially, these are opposite processes. In photosynthesis, a plant uses its chlorophyll, a green pigment found in its chloroplasts to capture the sun's energy. It then uses this energy for the...

Latest answer posted February 21, 2012, 5:58 am (UTC)

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Science

Scientists have always studied trees to learn about the changes in geography, but nowadays they are looking at the rings in the tree to determine something else. They are examining the width of the...

Latest answer posted December 9, 2009, 5:11 pm (UTC)

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Science

It is not true that African American women are seldom affected by osteoporosis. Is it the misconception that they are at a lesser risk that causes under diagnosis and treatment for the black...

Latest answer posted August 8, 2010, 8:52 am (UTC)

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Science

When a person has meningitis, it means that the fluid surrounding the spinal cord and brain have become infected by bacteria. In addition, it also causes blood infections. It is a very serious...

Latest answer posted August 16, 2010, 12:19 am (UTC)

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Science

The presence of a control group is necessary when conducting a controlled experiment because it is the setup that doesn't contain the variable being tested. The control setup gives the experimenter...

Latest answer posted September 28, 2019, 9:29 pm (UTC)

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Science

It has been said that air condioning is the main reason some parts of the world, and parts of countries, were developed more extensively. For exmple, in the United States people begin moving into...

Latest answer posted March 1, 2012, 3:18 pm (UTC)

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Science

The chayote plant seems to be the most versatile of the three, with the tubers being consumable as a starch, the stems and leaves edible as salad fiber. The blue potato plant was mentioned only in...

Latest answer posted April 2, 2012, 9:24 am (UTC)

1 educator answer

Science

The question doesn't appear completely, and I can't fix it after editing: A child leaps on a skateboard: A 35 kg girl is running at a speed of 2.8 m/s when she jumps on a stationary skateboard. If...

Latest answer posted October 28, 2013, 5:14 am (UTC)

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Science

You would need to have a live screen capture program that would let you record anything playing directly off your computer screen. There are free programs that would enable you to manage this,...

Latest answer posted May 8, 2012, 10:00 pm (UTC)

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Science

The equation for thermal expansion of Mercury is given by, V(t) = V(1 + 1.82 x 10^(-4)t + 7.8 x 10^(-9)t^2) Where t is in C, and V is the volume at 0 C. The volume 100 cm = 1 m cubes of Mercury at...

Latest answer posted May 15, 2012, 10:51 am (UTC)

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Science

First it is always best to focus on topics on your subject of most interest to yourself, but within the parameters of the assignment. What questions do you, yourself have about the subject?...

Latest answer posted September 9, 2011, 5:32 am (UTC)

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Science

In a car accident, physics can be used to determine how fast the car was going, who stepped on the brake first, and how fast they were going when they did. In a crime scene, physics can be used to...

Latest answer posted October 11, 2012, 3:03 pm (UTC)

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Science

Overpopulation refers to the condition when the population of a given region exceeds the carrying capacity of that region. In other words, when resources are unable to meet the requirements of the...

Latest answer posted May 13, 2016, 5:51 am (UTC)

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Science

Biomass is energy derived from plant or plant products. Plants are producers and are capable of converting solar energy into chemical energy. When combusted, carbon dioxide is released, which adds...

Latest answer posted April 30, 2013, 9:01 pm (UTC)

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Science

Forensics is used, generally, in criminal and civil lawsuits. Forensics or forensic science is the collection, preservation and analysis of evidence. The information so obtained is then used in a...

Latest answer posted February 12, 2016, 12:09 pm (UTC)

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Science

There are some major differences between the Indigenous land stewardship framework and the Western model of land ownership, and the current Collaborative Stewardship Framework in British Columbia...

Latest answer posted January 5, 2022, 2:46 am (UTC)

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Science

The answer is choice (d): the acceleration of the Voyager probe is 0 m/s^2. According to the information given in this problem, there was no external force acting on the Voyager probe throughout...

Latest answer posted February 26, 2016, 8:56 pm (UTC)

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Science

Molar mass of `CuSo_4` = 159.6g/mol It is given that the density of the solution is 1.1169g/ml Let us say we have 1L of solution. Mass of the `CuSO_4` of the solution `= 0.15xx1.1169xx1000 =...

Latest answer posted July 9, 2013, 7:34 am (UTC)

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Science

If you look at the properties of an electron or a proton, then the mass of it is independent of the source of that particular proton. The proton in a nitrogen atom is the same mass as the proton...

Latest answer posted March 14, 2012, 9:40 am (UTC)

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Science

Water makes up the majority of an organism's body. For example, the human body consists of about 65% water. Water carries out a large number of important functions in the biological world....

Latest answer posted March 18, 2016, 1:24 pm (UTC)

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Science

http://www.enotes.com/science/q-and-a/scientific-knowledge-has-grown-basis-either-human-324581

Latest answer posted March 21, 2012, 7:17 am (UTC)

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Science

Like any other industry, the dairy industry too has its pros and cons. It is one of the few industries where a person can earn revenues every day, because new (or fresh) product is ready every day....

Latest answer posted October 7, 2015, 2:59 pm (UTC)

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Science

As an Orthodox Jew, I have a difficult issue with evolution. I do not know how to reconcile Darwin's theory of evolution with the first chapter of Genesis. I have heard a few possibilities, but...

Latest answer posted January 20, 2010, 1:03 am (UTC)

2 educator answers

Science

1) The girl jumping on the skateboard is an inelastic collision, and in all collisions, energy must be conserved. In an inelastic collision the combined energy of the colliding objects to before...

Latest answer posted November 1, 2013, 12:26 am (UTC)

1 educator answer

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