Category: Physics

What is the difference between explosion and spontaneous combustion? The combustion in which substances suddenly burst into flames, without the application of any apparent cause is called spontaneous combustion. The combustion in which sudden reactions take place on ignition of some substances to produce heat, light, and sound is called explosion. Is combustion spontaneous or […]

How much below the surface of earth does the acceleration due to gravity reduces to 36%? Since, the acceleration due to gravity decreases by 36% of its value on the surface of the earth. How much below the surface of the earth does the acceleration due to gravity become 10? Answer Expert Verified Let the […]

What is the formula of center of mass? The center of mass can be calculated by taking the masses you are trying to find the center of mass between and multiplying them by their positions. Then, you add these together and divide that by the sum of all the individual masses. What is the Centre […]

How many electrons does a 60 watt light bulb pass per second? As Incandescent lamp is a resistive load , Current that will flow through bulb is 0.5 Amp. By definition 1 Amp is equal to one coulomb of charge per second. Charge of an individual electron 1.602 × 10^-19 coulombs. Hence 1 coulomb of […]

How do you measure moisture in the air? The amount of water vapor in the air can vary greatly on regional scales and must be measured at weather stations. There are several ways to measure and express this moisture content. One is using a psychrometer, which measures the dry bulb (actual air) temperature and what […]

How do emotions affect financial decisions? When your anger is at its peak, you’re more likely to make rash financial decisions. You can even compare this to angry casino players on a losing streak. In their anger and frustration, they lose even more money in a bid to recover what they’ve gambled away. What emotions […]

How many lengths does a car have? Figure one car length for every ten miles an hour,” Barndt said. “So if you’re doing 55 miles an hour you should have six car lengths between you so that if something happens to the car in front of you, you have time to stop or react.” The […]

Is genetic engineering in demand? “Today, demand for genetic engineers is rising in India as well as abroad.” After pursuing courses in genetic engineering, you can work in medical and pharmaceutical industries, research and development departments, agricultural sector, genetic engineering firms, chemical companies, etc. Which country is best for genetic engineering? Switzerland, the USA, England […]

What was soccer first? association football What came first football or soccer? To most of the rest of the world, (including England, the birthplace of the modern sport,) it’s football. But what most people don’t know is that the word “soccer” is not in fact an American invention. On the contrary, it was an import […]

Which is the basic unit of matter? In turn, the atom is the fundamental unit of matter…, that is, of an element. The number of positively charged protons and neutral neutrons in an atomic nucleus account for most of the mass of an atom. Each negatively charged electron that orbits a nucleus is about 1/2000th […]