Category: Physics

Why does polarization not occur in dry cell? Manganese oxide prevents polarisation in dry cells. – Polarization is a defect that occurs in simple electric cells due to the accumulation of hydrogen gas around the positive electrode. – MnO2 reacts with H2 and forms water as byproduct, so depolarization doesn’t occur. What is local action […]

What is the cheapest way to heat a pool? Here are the seven cheapest ways to heat your pool this off-season. Use a Solar Cover. Invest in Solar Sun Rings. Try Out a Liquid Solar Pool Cover. Build a Windproof Pool Enclosure. Use the Black Hose Trick. Snag a Pool Heat Pump. Combine a Solar […]

What are the advantages of selective breeding in animals? Benefits of selective breeding include: new varieties may be economically important, by producing more or better quality food. animals can be selected that cannot cause harm, for example cattle without horns. What are the negative effects of inbreeding? Key Takeaways. Inbreeding occurs when two closely related […]

How do you find the radius of BCC? The relation between edge length (a) and radius of atom (r) for BCC lattice is √(3a) = 4r . How do I know if BCC or FCC? The BCC unit cell consists of a net total of two atoms, the one in the center and eight eighths […]

How do you know if someone is watching you through the mirror? Place the tip of your fingernail against the mirror. Look closely to where you’re touching the mirror. If there is a gap between your fingertip and the and the image of the nail reflecting back to you, it is a genuine mirror. If […]

Is 2Mg O2 2MgO synthesis reaction? Products- Ending materials in a chemical reaction. Synthesis- a reaction that starts with two or more substances to form a single product. 2Mg + O2 –> 2MgO. Decomposition- a reaction that starts with a single reaction and forms two or more products. What is the balanced equation for Pb […]

Which stove do you light first? A glass stove, a brick stove , and a wood stove. You only have 1 match. Which do you light up first? Answer: You light the match first. Can you light a match with your finger? Safety matches need to be struck on a match box, but strike-anywhere matches […]

Which polynomial is factored completely? We say that a polynomial is factored completely when we can’t factor it any more. Here are some suggestions that you should follow to make sure that you factor completely: Factor all common monomials first. Identify special products such as difference of squares or the square of a binomial. Which […]

Which is higher MB or GB? 1 Gigabyte is considered to be equal to 1000 megabytes in decimal and 1024 megabytes in binary system. As you can see, 1 Gigabyte is 1000 times bigger than a Megabyte. So, a GB is bigger than a MB. Is 500MB a lot of data? A 500MB data plan […]

What is the purpose of a scientific law quizlet? describes an observed pattern in nature with no explanation. it is an expectation of what scientists think will happen under the same conditions. You just studied 2 terms! What best defines a scientific law? In general, a scientific law is the description of an observed phenomenon. […]