Answer

The easiest way to define friction is as a force that opposes the moving of a solid object over a different solid object. It resists the motion of solid objects and fluid layers that slide against each other.

June 9, 2020 09:39

The US gets its electricity from a variety of sources. It is produced by a vast array of technologies. These sources and technologies have changed tremendously over history, and nowadays the largest energy sources for electricity in the US are fossil fuels, nuclear energy and renewable energy sources.

June 9, 2020 09:38

A liter is a unit used to measure volume in the metric system. This is actually the international standard of measuring things. The exact volume of one liter is equal to one cubic decimeter. This means that the object we are measuring has length, height, and width.

June 8, 2020 11:42

These crimes are not forbidden by law, but we still consider them wrong and worthy of punishment. Green-collar crimes happen every day, and there is a good chance you have stumbled upon many examples just by following the news.

June 5, 2020 09:52

Inertia can most easily be explained as a feature that every object has, and it is described as resistance to movement. If you want to move anything, even yourself, you need to apply some sort of energy into that process.

June 1, 2020 11:41

Sectionalism is commonly defined as loyalty to the particular region where a person resides rather than to the entire country. In the United States, sectionalism is often seen in three different areas.

May 30, 2020 10:40

The Battle of Fort Sumter is an important moment in the history of the United States of America as it is often referred to as a battle that initiated the Civil War.

May 28, 2020 08:53

The answer to what caused the fall of the Roman Empire is extremely complex and can’t be boiled down to just one thing, so no, it can’t be attributed just to Christianity.

May 26, 2020 08:55

When talking about the United States, the answer is yes; the U.S. is one of the largest food exporters in the world. It is indeed, self-sufficient when it comes to food.

May 23, 2020 07:53

Plate tectonics refers to the scientific theory that describes the motions of seven large plates, as well as the movements of countless smaller plates that make up the Earth’s lithosphere.

May 23, 2020 07:14

Most experts agree that the first domesticated animals appeared in Mesopotamia - a historical region located in Western Asia, in the Tigris-Euphrates river system.

May 22, 2020 11:02

In the early 1800s, in New England, transcendentalism was born as a new way of thinking, a philosophy of intuition rather than reason.

May 22, 2020 10:38

Seeds look rather simple when you look at them from the outside, but there are several distinctive parts inside these embryonic structures.

May 22, 2020 07:14

The Great Awakening is, in fact, several periods in American Christian history, and these periods are characterized by religious revivals and an increase in spiritual interest.

May 22, 2020 07:13

Transcendentalism is a specific movement in philosophy that started in the United States of America in the early 1830s.

May 20, 2020 09:30

The United States-Mexico-Canada Agreement is a free trade agreement that replaces NAFTA.

May 18, 2020 00:46

SpaceX has been performing numerous tests in preparation for space tourism, but so far the company has not met deadlines.

May 13, 2020 22:09

The process of domestication changed human society and history. It is an extremely important process that happened in many different places with many different species.

May 11, 2020 10:51

Domestication refers to the process of adapting plants and animals from the wilderness for human use. These species get used for work, food, clothing, medicine, and many other things.

May 11, 2020 10:42

Plants respire using the process of cellular respiration. This means that they use the nutrients and turn them into energy to fuel all of their cellular activities.

May 11, 2020 10:19