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. […]

How much is a printed circuit board? Printed circuit boards have a huge range of quality, reliability, complexity, and price points. A circuit board typically costs from 50 cents to $300 dollars to produce, depending on your needs. What is the other name of printed circuit board? PCBs use conductive pathways, tracks or signal traces […]

What is used to transport hot crucibles and to remove their covers? Laboratory Equipment A B used to grind chemicals into powder mortar and pestle used to hold objects on a ring stand utility clamp used to transport hot crucibles and to remove their covers crucible tong to hold, mix, and heat chemicals – easier […]

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 […]

How fast is biodiversity being lost? These experts calculate that between 0.01 and 0.1% of all species will become extinct each year. If the low estimate of the number of species out there is true – i.e. that there are around 2 million different species on our planet** – then that means between 200 and […]

Why does altitude make you lose weight? What causes weight loss at high altitudes? Many studies have looked at climbers at high altitudes and, expectedly, increased energy expenditure due to increased physical activity can contribute to some of their weight loss. Does altitude affect sleep? Sleep Disturbances Trouble sleeping is quite common at high altitude. […]

How do you calculate maximum power transfer? Condition for Maximum Power Transfer Therefore, the condition for maximum power dissipation across the load is RL=RTh. That means, if the value of load resistance is equal to the value of source resistance i.e., Thevenin’s resistance, then the power dissipated across the load will be of maximum value. […]

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 […]

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 […]

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 […]