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Science

Atoms oscillate about fixed positions in a solid because they are relatively close to one another and cannot, therefore, move with the same freedom as the atoms in a liquid or a gas. These...

Latest answer posted November 22, 2022, 4:13 am (UTC)

1 educator answer

Science

If an electron collides with a gold atom, it is possible, though unlikely, for two electrons to move away from the atom after the collision. The gold atom would now be a cation, a positively...

Latest answer posted November 22, 2022, 1:46 am (UTC)

1 educator answer

Science

Several of this patient's body systems will be affected by her depression. These include: The cardiovascular system. The patient's insomnia and weight gain carry with them an increased risk of...

Latest answer posted November 21, 2022, 7:04 pm (UTC)

1 educator answer

Science

A person who has cerebral palsy may in this circumstance suffer great embarrassment at times, and this can certainly lead to emotional and physical effects. Let's look at some of those to help you...

Latest answer posted November 21, 2022, 2:46 pm (UTC)

1 educator answer

Science

Liam Kofi Bright's essay "Why Do Scientists Lie?" delves into reasons why scientific fraud exists. Bright also differentiates the motives of scientists and of science itself. He repeatedly reminds...

Latest answer posted November 19, 2022, 3:15 pm (UTC)

1 educator answer

Science

If a source S produces periodic sound waves that are received by a detector D in air, the frequency detected becomes higher when S moves at a constant velocity toward D. The sound waves move closer...

Latest answer posted November 18, 2022, 7:22 am (UTC)

1 educator answer

Science

There have been numerous criticisms of how eggs are produced in the United States in factory farms. Consider the following when writing your paragraphs. One of your paragraphs could focus on the...

Latest answer posted November 17, 2022, 9:00 pm (UTC)

1 educator answer

Science

Phospholipids are unique in that one half of the molecule is hydrophobic and one half is hydrophilic. In other words, one side of the molecule, the phosphate "head," is attracted to water—or isn't...

Latest answer posted November 15, 2022, 12:06 am (UTC)

1 educator answer

Science

Yellowstone National Park consists mainly of high volcanic plateaux that have been eroded by glaciation to reveal many different rock strata, giving a clear picture of its geologic history. The...

Latest answer posted November 10, 2022, 5:26 pm (UTC)

1 educator answer

Science

Asthma is a long-term noncommunicable disease in which the air passages in the lungs become inflamed or coated with mucus, narrowing the passages and making it harder to breathe. The symptoms of...

Latest answer posted November 9, 2022, 1:35 pm (UTC)

1 educator answer

Science

Polio is a virus that primarily impacts the body's nervous system. It is usually spread from an infected person to another individual through close contact, often from exposure to fecal matter,...

Latest answer posted November 9, 2022, 4:51 pm (UTC)

1 educator answer

Science

According to special relativity, the total energy of any object is the sum of its mass at rest (the energy value of which can be found using Einstein's famous equation `"E" = "mc"^2` ) and its...

Latest answer posted November 7, 2022, 6:15 am (UTC)

1 educator answer

Science

Intelligence is an abstract concept that is often defined as the ability of an individual to think analytically, creatively, and practically. In other words, intelligence is one's ability to learn...

Latest answer posted November 4, 2022, 1:03 am (UTC)

1 educator answer

Science

An accelerating spacecraft will create inertia, which Alice may be able to feel or observe. As the spacecraft's speed increases, more inertia will act upon the mass inside, such as objects and...

Latest answer posted November 6, 2022, 8:50 pm (UTC)

1 educator answer

Science

For this question, we need to refer to the formula of electric force between two charged objects, which is: `F = (k*q_1*q_2)/d^2` where k is the Coulomb's constant that has a value of 9*10^9 N...

Latest answer posted October 22, 2022, 12:32 pm (UTC)

1 educator answer

Science

Io is held in orbit by gravitational forces and its own motion, and that is the reason it does not crash into Jupiter. Let's look at this in more detail. Just like any moon that orbits around a...

Latest answer posted October 22, 2022, 6:58 pm (UTC)

1 educator answer

Science

An electromagnetic wave can travel in empty space, unlike a mechanical wave. Mechanical waves need to travel through matter, as the waves on a pond travel through the water, transferring energy...

Latest answer posted October 22, 2022, 1:50 am (UTC)

1 educator answer

Science

The moon doesn’t crash into Jupiter because of gravity and the sun. As the dynamics of the solar system stabilized, the planets settled into an orbit that prevented crashes. To stop collisions—like...

Latest answer posted October 22, 2022, 5:45 pm (UTC)

1 educator answer

Science

Modern anthropogenic climate change is caused by human activities which release greenhouse gases into the atmosphere. Greenhouse gases, such as carbon dioxide, methane, and nitrous oxide, absorb...

Latest answer posted October 23, 2022, 6:06 am (UTC)

1 educator answer

Science

The fluid-mosaic model of a plasma membrane structure seeks to explain how membranes are put together with a number of different components in a liquid-like environment. Let's look at this in more...

Latest answer posted October 17, 2022, 1:45 pm (UTC)

1 educator answer

Science

The nature of plasma membrane proteins is that they are proteins which form part of the protective layer of membrane covering a cell. They are embedded in or span a double layer of lipids (the...

Latest answer posted October 17, 2022, 9:21 am (UTC)

1 educator answer

Science

Plasma membrane proteins perform a range of functions, mainly centered on communication and transport, for the cells to which they adhere. Although the bilayer of lipids which covers the surface of...

Latest answer posted October 17, 2022, 11:18 am (UTC)

1 educator answer

Science

The most basic function of the plasma membrane, performed by the lipids, is to form a physical barrier which protects the cell. The lipids form a double layer, the bilayer, separating the cytoplasm...

Latest answer posted October 17, 2022, 2:11 pm (UTC)

1 educator answer

Science

The pancreas controls the level of glucose in the blood by producing two hormones, glucagon and insulin. When someone consumes carbohydrates, these are converted into glucose, to provide the body...

Latest answer posted October 16, 2022, 7:26 am (UTC)

1 educator answer

Biology

Glucose, which is often called blood sugar, is what is formed as your body breaks down the starches and sugars you have eaten in a meal. It is the simplest form of carbohydrate. Carbohydrate-rich...

Latest answer posted October 15, 2022, 9:16 pm (UTC)

1 educator answer

Science

The atomic mass of an atom is essentially the sum of the number of protons and neutrons. Neutrons are slightly heavier, but the masses are close enough to be approximately the same. Since the...

Latest answer posted October 13, 2022, 10:13 pm (UTC)

1 educator answer

Science

Most simply, vegetarians do not eat meat and focus on a diet of vegetables, grains, and non-meat proteins. Let's look at vegetarianism in more detail to help you get started on these questions....

Latest answer posted October 4, 2022, 5:14 pm (UTC)

1 educator answer

Science

There are several ways in which you could separate these two substances. Perhaps the simplest and easiest way to separate sodium chloride from ammonia chloride would be through the process of...

Latest answer posted October 5, 2022, 3:50 am (UTC)

1 educator answer

Science

Yes, you can determine the trip time by using the formula for speed. Speed is directly related to distance and time. The formula for speed is Speed (S) = Distance (D)/Time (T). Since Time is the...

Latest answer posted September 23, 2022, 4:23 pm (UTC)

1 educator answer

Science

What happens to a plane flying north facing a perpendicular crosswind to the east depends on the actions of the pilot. If the pilot keeps the nose of the plane facing due north, the plane will be...

Latest answer posted September 23, 2022, 6:36 am (UTC)

1 educator answer

Science

The object will only move if the net force in either direction is greater than zero. If equal forces are applied to an object in opposite directions, they will cancel each other out. This happens...

Latest answer posted September 23, 2022, 6:05 am (UTC)

1 educator answer

Science

Using a meter stick to measure the average thickness of a single sheet of paper in a book involves measuring all the pages and dividing the measurement by the number of pages. One of the likely...

Latest answer posted September 27, 2022, 3:06 am (UTC)

1 educator answer

Science

This case study about Mary, her boating accident, and its aftereffects can be approached through the lens of many different developmental theories. Let's look at each theory in turn to help you...

Latest answer posted September 28, 2022, 3:29 pm (UTC)

1 educator answer

Science

Certain microbes were first associated with specific diseases, and spontaneous generation was firmly disproved, during the nineteenth century. In the last decades of the nineteenth century, the...

Latest answer posted September 21, 2022, 6:26 am (UTC)

1 educator answer

Science

The serous membranes, or the serosa, are thin and smooth tissue membranes that line the internal cavities and organs of the body. The three serous membranes are the peritoneum, the pericardium, and...

Latest answer posted September 10, 2022, 7:50 am (UTC)

1 educator answer

Science

The various layers of the pleural cavity, abdominopelvic cavity, and pericardial cavity have different functions. Let's look at these to help you get started on this question. The visceral and...

Latest answer posted September 10, 2022, 3:52 pm (UTC)

1 educator answer

Science

You are correct in that protons and neutrons are about the same size, while electrons are much smaller. A neutron is just ever so slightly greater in diameter than a proton, by about one-tenth of a...

Latest answer posted September 8, 2022, 4:07 pm (UTC)

1 educator answer

Science

Given that a loaf of bread with a density of `0.2 g // cm^3` and volume `3000 cm^3` is crushed in the bottom of a grocery bag into a volume of `1500cm^3` , we have to find the density of the mashed...

Latest answer posted August 23, 2022, 4:42 pm (UTC)

1 educator answer

Science

Management care in nursing refers to the special role some nurses assume as liaisons who smooth out the care process and connect with patients, providers, government organizations, and insurance...

Latest answer posted August 29, 2022, 6:38 pm (UTC)

1 educator answer

Science

Nursing involves making numerous and complex decisions quickly in order to effectively prioritize the needs of patients, and nurses often use the "ABCs" to aid in the decision-making process. The...

Latest answer posted August 29, 2022, 8:11 pm (UTC)

1 educator answer

Statistics

A concept is simply an idea. It is something that is fairly vague and it can be difficult to understand how to measure the concept. A variable is much more specific and concrete. It is a...

Latest answer posted February 26, 2012, 10:52 pm (UTC)

1 educator answer

Science

The idea of bringing animals back from extinction has both positive and negative features, and individual opinions will vary about whether such attempts are desirable. By making animals de-extinct,...

Latest answer posted August 5, 2022, 2:54 am (UTC)

1 educator answer

Science

In many ancient cultures, religions, and mythologies, snakes are often associated with healing and medicine. Serpents symbolized renewal, rebirth, and immortality and were even idolized and...

Latest answer posted July 27, 2022, 10:54 am (UTC)

1 educator answer

Science

Brad Plumer and Ruairi Arrieta-Kenna's “How Do Hurricanes Form? A Step-by-Step Guide” presents a clear set of steps that must happen for a hurricane to form. Let's look at this article in more...

Latest answer posted July 25, 2022, 2:02 pm (UTC)

1 educator answer

Science

Biology is the study of living organisms. It is concerned with the structure, function, growth, origin, evolution, and distribution of such organisms. “Living” is contrasted to inanimate objects,...

Latest answer posted July 19, 2022, 7:50 pm (UTC)

1 educator answer

Science

Explanations for the great diversity of life on Earth are found in religion as well as science. In the more than 160 years since the publication of On the Origin of Species, many scientists have...

Latest answer posted July 18, 2022, 6:38 pm (UTC)

1 educator answer

Science

An atom is composed of neutrons, protons, and electrons. These are extremely tiny, electrically charged particles inside the atom, also known as sub-atomic particles (further made up of even...

Latest answer posted July 18, 2022, 11:10 am (UTC)

1 educator answer

Science

All matter around us, whether it is in solid, liquid, or gaseous state, is composed of atoms. Atom is the smallest unit of matter that exhibits the characteristic properties of the chemical nature...

Latest answer posted July 18, 2022, 10:49 am (UTC)

1 educator answer

Science

Bernoulli's principle or theorem has to do with fluid physics. The theorem explains what happens to the speed of fluid based on the pressure applied to it. So, for instance, what happens when you...

Latest answer posted July 17, 2022, 1:38 pm (UTC)

1 educator answer

Science

In chemistry and physics, elements are the basic components of matter; they exist as they are and cannot be broken down into smaller or simpler substances by any chemical reaction. The elements are...

Latest answer posted July 17, 2022, 7:30 am (UTC)

1 educator answer

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