How much does an elephant cost? Photo courtesy of The David Sheldrick Wildlife Trust. In their report, iworry estimated the raw-ivory value of a poached elephant to be $21,000. In contrast, a living elephant is worth more than $1.6 million over its lifetime, largely because of its eco-tourism draw. Can I own a baby elephant? […]
What is the effect of molecular weight on melting and boiling points of alkanes?
What is the effect of molecular weight on melting and boiling points of alkanes? Their melting and boiling points of alkanes are relatively low. The higher the molecular weight (the greater the number of carbons), the higher the boiling point. What is the major use of alkanes? Use of Alkanes Alkanes are important raw materials […]
Is all green glass uranium?
Is all green glass uranium? Perhaps the most reliable way to identify the presence of uranium in the glass is to expose it in the dark to a source of ultraviolet light (e.g., a black light). If the glass glows a rich green color, it contains uranium. Why is depression glass called depression? Depression glass […]
How long was John Adams away from his wife?
How long was John Adams away from his wife? Abigail and John Adams would endure long periods of separation for the first fifteen years of their marriage. What made John Adams a good president? Learned and thoughtful, John Adams was more remarkable as a political philosopher than as a politician. When Adams became President, the […]
What two forces limit the height of capillary action will take water up a tube?
What two forces limit the height of capillary action will take water up a tube? Capillary action occurs when the adhesion to the walls is stronger than the cohesive forces between the liquid molecules. The height to which capillary action will take water in a uniform circular tube (picture to right) is limited by surface […]
What color is closest to the central maximum?
What color is closest to the central maximum? Violet and blue will be seen closer to the central maximum — then green and yellow and orange and finally red, farthest from the white central maximum. a) is a diffraction source. Why is diffraction grating better than a prism? However, a diffraction grating is less sensitive […]
What types of combustion are there?
What types of combustion are there? Here’s a closer look at five types of combustion: Complete Combustion. Complete combustion requires a combination of fuel and oxygen. Incomplete Combustion. Incomplete combustion occurs when there is not enough oxygen for the fuel to fully react. Rapid Combustion. Spontaneous Combustion. Explosive Combustion. What three things are needed for […]
What is the angle of incidence in aviation?
What is the angle of incidence in aviation? On fixed-wing aircraft, the angle of incidence (sometimes referred to as the mounting angle or setting angle) is the angle between the chord line of the wing where the wing is mounted to the fuselage, and a reference axis along the fuselage (often the direction of minimum […]
Is compulsion the same as addiction?
Is compulsion the same as addiction? The difference between compulsive behaviors and addiction is urge versus need. A compulsion is an insatiable urge to do something. Addiction is a need to do something to experience pleasure or remove discomfort. Is addiction a form of OCD? OCD causes anxiety, depression and even suicidal thoughts when left […]
What weighs approximately 1 Newton?
What weighs approximately 1 Newton? In general terms anything that has a mass of 102 grams is said to have a weight of one Newton, because a 0.102 kg object accelerating at 9.81 m/s2 gives you a force of one Newton. Local grocery stores have many things that weigh one Newton. In the fruit department, […]