Why does light take shortest path? Light does travel on the path which would take the shortest time to travel between two points. This nature of light best explains the refraction of light when traveling across two mediums of different refractive index. Light does travel on the path which would take the shortest time to […]
What disorder means?
What disorder means? Disorder – An illness that disrupts normal physical or mental functions. Oxford English Dictionary. A disorder could be defined as a set of problems, which result in causing significant difficulty, distress, impairment and/or suffering in a person’s daily life. What is an example of disorder? Examples include antisocial personality disorder, obsessive-compulsive personality […]
How do we determine the conditions that existed in the early universe quizlet?
How do we determine the conditions that existed in the early universe quizlet? How do we determine the conditions that existed in the very early universe? We work backward from current conditions to calculate what temperatures and densities must have been when the observable universe was much smaller in size. Why can’t Current theories describe […]
What are the differences between covalent and ionic bonds?
What are the differences between covalent and ionic bonds? The two main types of chemical bonds are ionic and covalent bonds. An ionic bond essentially donates an electron to the other atom participating in the bond, while electrons in a covalent bond are shared equally between the atoms. The only pure covalent bonds occur between […]
What is mechanical efficiency is the ratio of?
What is mechanical efficiency is the ratio of? Mechanical efficiency, measure of the effectiveness with which a mechanical system performs. It is usually the ratio of the power delivered by a mechanical system to the power supplied to it, and, because of friction, this efficiency is always less than one. What causes low volumetric efficiency? […]
Which of the following intermolecular forces is the strongest?
Which of the following intermolecular forces is the strongest? Ion-dipole forces What kinds of forces hold ionic solids together quizlet? What forces hold ionic solids together? Ionic bonds because ionic bonds are much stronger than any intermolecular forces. Ionic solids tend to have: Much higher melting points than molecular solids. What kind of force is […]
Why are energy transfers not 100% efficient?
Why are energy transfers not 100% efficient? The second law explains why energy transfers are never 100% efficient. Because ecological efficiency is so low, each trophic level has a successively smaller energy pool from which it can withdraw energy. This is why food webs have no more than four to five trophic levels. How can […]
Why is red a danger color?
How does the voice show work?
How does pollution play a role in greenhouse effect?
How does pollution play a role in greenhouse effect? Some air pollutants cause the climate to warm. Greenhouse gases prevent some of that heat from leaving the atmosphere. The recent increase in greenhouse gas pollution is trapping excess heat and causing the climate to warm. Air pollution includes greenhouse gases such as carbon dioxide. What […]