Which country is coal rich and oil poor? India: Rich in coal but poor in energy. What is chemical formula of oil? The chemical formula for crude oil is CnH2n+2, where n is a positive integer. Crude oil is basically a combination of several hydrocarbon molecules, comprising hydrogen, H and carbon atoms, C. Among the […]
What energy transformation takes place in a dry cell B electric fan?
What energy transformation takes place in a dry cell B electric fan? 1) in dry cell – chemical energy is converted to electrical energy. 2) In electric fan – electrical energy is converted to mechanical energy and wind energy . Which energy is converted in an electric cell? An electrical cell is an “electrical power […]
What are the 5 categories of adaptations?
What are the 5 categories of adaptations? The five categories of the adaptations are migration, hibernation, dormancy, camouflage, and estivation. The migration can be defined as the phenomenon of the movement of the animals from one region to another in order for their survival. What is an example of an amazing animal adaptation? Kangaroo rats […]
What is the value of 1 pico Farad?
What is the value of 1 pico Farad? 1/1,000,000,000,000 What is capacitance value? Capacitance is expressed as the ratio of the electric charge on each conductor to the potential difference (i.e., voltage) between them. The capacitance value of a capacitor is measured in farads (F), units named for English physicist Michael Faraday (1791–1867). A farad […]
Why centrifugal force is called pseudo-force?
Why centrifugal force is called pseudo-force? The centrifugal force is a pseudo-force because if the centripetal force ceased for an object in circular motion, the centrifugal force the body is “feeling” would instantly disappear, and the object would travel tangentially to its line of motion. Can centrifugal force overcome gravity? The centrifugal force is real […]
What does tightening a string do?
What does tightening a string do? Tension refers to how tightly the string is stretched. Tightening the string gives it a higher frequency while loosening it lowers the frequency. When string players tighten or loosen their strings, they are altering the pitches to make them in tune. The density of a string will also affect […]
What was the conclusion of the gold foil experiment?
What was the conclusion of the gold foil experiment? Rutherford’s gold foil experiment showed that the atom is mostly empty space with a tiny, dense, positively-charged nucleus. Based on these results, Rutherford proposed the nuclear model of the atom. Why was gold foil used in Rutherford’s experiment? Rutherford used gold for his scattering experiment because […]
How do you explain combustion?
How do you explain combustion? Combustion is a chemical process in which a substance reacts rapidly with oxygen and gives off heat. The original substance is called the fuel, and the source of oxygen is called the oxidizer. The fuel can be a solid, liquid, or gas, although for airplane propulsion the fuel is usually […]
What are the 3 basic types of scaffolds in the construction industry?
What are the 3 basic types of scaffolds in the construction industry? Workers who use scaffolds can be divided into three groups: Suspended Scaffolds. Supported Scaffolds. Aerial Lifts. What is the narrowest scaffolding? Narrowest 600mm scaffold tower For our narrowest tower try the stair tower. It comes in a 600mm wide frame so it can […]
How do you know if you have inner ear damage?
How do you know if you have inner ear damage? Nausea or vomiting. Tinnitus or ringing in your ears. Hearing loss. Feeling of fullness in your ear. Is inner ear damage permanent? If treated promptly, many inner ear infections cause no permanent damage. In some cases, however, permanent loss of hearing or damage to the […]