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etal force :a centripetal force: In circular motion the force acting on the particle along the radius and centre keep the body moving along a circular path .this forces called centripetal force.centripetal force is necessary for circular motion.it is along the radius and towards thr centre.centripetal force is due to an interaction therefore it is a real force.examples : In an atom an electron REVOLVES in a circular orbit around the NUCLEUS.the centripetal force is due to the ELECTROSTATIC force of attraction between the positively charged nucleus and NEGATIVELY charged electron.

The principle of REVERSIBILITY states that LIGHT will FOLLOW exactly the same PATH if its direction of travel is reversed.

s carrying inflammable materials USUALLY have metallic ROPES touching the ground during motion. Tell why ?→> This is done just to avoid the charging process occuring .During motion,The BODY of the VEHICLE gets charged due to friction of air. The tyres also accumulate the charge due to friction between the tyres and the road. Due to charge ACCUMULATION inflammable materials inside the vehicle may catch fire.So, to avoid this, the accumulated charge is made to flow from body to the ground through metallic ropes.

N-type semiconductor, ELECTRONS are MAJORITY carriers and HOLES are minority carriers. In P-type semiconductor, holes are majority carriers and electrons are minority carriers. It has Larger electron concentration and LESS HOLE concentration. It has Larger hole concentration and less electron concentration.

a mhanje vegali goshat pahne

Explanationa BAROMETER is USED to MEASURE PRESSURE

Explanation:Observation of jaltarang in this activity few BOWLS are filled with DIFFERENT levels of WATER which PRODUCE different levels of LOUDNESS, vibration, amplitude when strikes on bowl

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what you had written in this QUESTION I am not understanding EXPLANATION:sorry......XD

Newton's law of universal gravitation is usually stated that every particle attracts every other particle in the universe with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.[note 1] The publication of the theory has become known as the "first great unification", as it marked the unification of the previously described phenomena of gravity on Earth with known astronomical behaviors.[1]This is a general physical law DERIVED from empirical observations by what Isaac Newton called inductive reasoning.[2] It is a part of classical mechanics and was formulated in Newton's work Philosophiæ Naturalis Principia Mathematica ("the Principia"), first published on 5 July 1687. When Newton presented Book 1 of the unpublished text in April 1686 to the Royal Society, Robert Hooke made a claim that Newton had obtained the inverse square law from him.In today's language, the law states that every point mass attracts every other point mass by a force acting along the line intersecting the two points. The force is proportional to the product of the two masses, and inversely proportional to the square of the distance between them.[3]The equation for universal gravitation thus takes the form:{\displaystyle F=G{\frac {m_{1}m_{2}}{r^{2}}},}{\displaystyle F=G{\frac {m_{1}m_{2}}{r^{2}}},}where F is the gravitational force acting between two objects, m1 and m2 are the masses of the objects, r is the distance between the centers of their masses, and G is the gravitational constant.The first test of Newton's theory of gravitation between masses in the laboratory was the Cavendish experiment conducted by the British scientist Henry Cavendish in 1798.[4] It took place 111 years after the publication of Newton's Principia and approximately 71 years after his death.Newton's law of gravitation resembles Coulomb's law of electrical forces, which is used to calculate the magnitude of the electrical force arising between two charged bodies. Both are inverse-square laws, where force is inversely proportional to the square of the distance between the bodies. Coulomb's law has the product of two charges in place of the product of the masses, and the electrostatic constant in place of the gravitational constant.Newton's law has since been superseded by Albert Einstein's theory of general relativity, but it continues to be used as an EXCELLENT approximation of the effects of gravity in most APPLICATIONS. Relativity is required only when there is a need for extreme accuracy, or when dealing with very strong gravitational fields, such as those found near EXTREMELY massive and dense objects, or at very close distances (such as Mercury's orbit around the Sun).

a) 0,0,5,7,1,8b)9,3,2,6c) 9

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Explanation:400hz = 400 OSCILLATIONS PER SECOND

use this email is STRICTLY forbidden to WATCH the video in medium and a BRAINLIST I will give me a call from washing machine to the next week and a half day DELIVERY to your site and a BRAINLIST mark the next week gdgdud r reader r or Adobe the Adobe PDF LOGO to ensure the videos and photos and videos and photos and videos to YouTube or any of the videos and more than one will donate

lengthbut LENGTH is noteasure

we have to GIVE LESS WATER only we should give water in MORNING only so we can REDUCE the water

where is the PICTURE . WITHOUT the picture we cannot answermad

fucinhExplanation:****************

ne can also be positive or NEGATIVE. ... Work done by a FORCE is positive if the applied force has a component in the DIRECTION of the displacement. When a body is falling down, the force of gravitation is acting in the downward direction. The displacement is also in the downward direction..Work is zero if applied force is zero (W=0 if F=0): If a BLOCK is moving on a smooth horizontal surface (frictionless), no work will be done. ... Work done is zero when displacement is zero. This happens when a man PUSHES a wall. There is no displacement of the wall. Thus, there is no work done.

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answer 1 : Matter does not exist WITHOUT mass because matter is anything that occupies SPACE and have mass

ecules in gases are very apart from each other. Therefore, gases NEITHER have a fixed volume nor a fixed SHAPE. For instance as in solids, it has a fixed shape and a fixed volume because the MOLECULES in a solid are closely and TIGHTLY packed together. ... It TAKES the shape of the container it is put in.

Convex mirrors are commonly used as rear-view (wing) mirrors in vehicles because they give an ERECT, virtual, full size diminished image of distant objects with a wider FIELD of view. Thus, convex mirrors enable the driver to view MUCH larger area than WOULD be possible with a plane mirror.there is your answer

tion:The basic difference between mass and weight is that mass is the amount of MATTER in an OBJECT, while weight is the force of GRAVITY by which earth attracts towards it. Mass is the scalar quantity and weight is a vector quantity. The unit of mass is kg while the unit of weight is N.mark as BRAINLIST plzzzzzz bro

Explanation:CONCAVE mirror have positive focal lenght so f=20 and u=-30 apply formula 1/u+1/V=1/f SOLE for v for magnification apply formula=-v/u

Let US enjoy reading this story of The Cap-Seller and The Monkeys. Once, there was a cap-seller in a town. On one fine day, he was SELLING CAPS. “Caps, caps, caps….Five rupees caps, ten rupees caps…." After he made few sales of caps, he became very tired. He decided to sit under a big tree to take rest for a while. Soon, he slept off. There were many monkeys on the big tree. They saw the cap-seller was sleeping under the tree. The monkeys were SITTING on the top of the tree. The monkeys came down, took the caps from the cap-seller-bag and wore them. Then they climbed the tree again. When the cap seller woke up, he was shocked to see his basket empty. He searched for his caps. To his surprise, he saw the monkeys were wearing them. He found that monkeys were imitating him. So, he started throwing his cap down and the monkeys also did so. The cap-seller collected all the caps, put them back in his basket and WENT away happily.

Momentum of body with mass 'm' and velocity 'v' is MV. Momentum is the helper of force you can say. The STRENGTH of force that keeps the body MOVING or at REST.

by giving STREAMLINED SHAPE to objects IE broad at centre and NARROW at BASE