Category: Physics

What is an example of a terrestrial food chain? Well, for starters, a food chain is a series of interconnected feeding relationships among different species in an ecosystem. With this in mind a common terrestrial food chain example is grass-grasshopper-snake-hawk. Primary producers, which include plants, are at the bottom (or base) of the food web. […]

Can a TV show make you depressed? A study in Preventative Science Reports found elevated depression levels when people spent more time on computers and watching TV. In fact, those who spent more than four hours each day staring at a screen were about twice as likely to have depression. Is binge watching bad for […]

What is the effect of temperature on the viscosity of liquids? The result is that liquids show a reduction in viscosity with increasing temperature. With high temperatures, viscosity increases in gases and decreases in liquids, the drag force will do the same. What is viscosity how it varies with temperature? In general, the viscosity of […]

What are the four basic earth systems? Everything in Earth’s system can be placed into one of four major subsystems: land, water, living things, or air. These four subsystems are called “spheres.” Specifically, they are the “lithosphere” (land), “hydrosphere” (water), “biosphere” (living things), and “atmosphere” (air). Which is the largest system on earth? geosphere How […]

At what temperature does the exhaust valve open? When the valve opens and exhaust gas begins to flow out from under it, the valve is heated not only on the top of its head by combustion itself but the back side of it is heated as well by exhaust gas, whose temperature can be as […]

What is the most popular personal retirement plan? IRAs. The IRA is one of the most common retirement plans. An individual can set up an IRA at a financial institution, such as a bank or brokerage firm, to hold investments — stocks, mutual funds, bonds and cash — earmarked for retirement. What happens to your […]

Is Br2 polar or nonpolar? So, Is Br2 Polar or Nonpolar? Br2 (Bromine) is nonpolar because, in this molecule, both bromine atoms have the same electronegativity due to which both atoms have equal charge distribution and results in a net-zero dipole moment. What type of molecule is AlCl3? Aluminum chloride is a chemical compound with […]

What is the weight formula? The most common definition of weight found in introductory physics textbooks defines weight as the force exerted on a body by gravity. This is often expressed in the formula W = mg, where W is the weight, m the mass of the object, and g gravitational acceleration. Who gave the […]

What is H in Maxwell equations? The four Maxwell equations, corresponding to the four statements above, are: (1) div D = ρ, (2) div B = 0, (3) curl E = -dB/dt, and (4) curl H = dD/dt + J. Read More on This Topic. light: Maxwell’s equations. In the early 1860s, Maxwell completed a […]

Do hens feel pain when laying eggs? Chickens have pain receptors that give them the ability to feel pain and distress. Put yourself in the shoes (or the feathers) of a battery hen—or 452 million of them, which is how many are used for their eggs each year. Why do hens cluck after laying an […]