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A permanent magnet is an OBJECT MADE from a material that is magnetized and creates its own persistent magnetic FIELD. ... An electromagnet is made from a COIL of wire which ACTS as a magnet when an electric current passes through it.

it's VELOCITY is 95 m/s²

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using LED bulbs is BETTER because it saves ELECTRICITY than ELECTRIC bulbs.

Alcohol HOMOLOGOUS Series. The alcohols which only contain one hydroxyl group attached to a SATURATED carbon form a homologous series. A hydrocarbon homologous series is a series of hydrocarbons which: Have the same general formula. Differ by CH2 in molecular formulae from neighbouring compounds.Explanation:In the field of organic chemistry, a homologous series is a series of compounds with the same functional group and similar chemical properties in which the members of the series can be branched or unbranched.This can be the length of a carbon chain,for example in the straight-chained alkanes (PARAFFINS), or it could be the number of monomers in a homopolymer such as amylose.Compounds within a homologous series typically have a fixed SET of functional groups that gives them similar chemical and PHYSICAL properties. (For example, the series of primary straight-chained alcohols has a hydroxyl at the end of the carbon chain.)

Explanation: In this CASE V = 0.4c and uₓ = -0.4cSo the RELATIVE  speed of the rocket is from the FORMULA U'ₓ = uₓ - v / 1- vuₓ/c² U'ₓ = -0.4c - 0.4c / 1- (0.4c -0.4c) /c²  U'ₓ = - 1.6c / 1 + 0.61 U'ₓ = 1.6c / 1.61 U'ₓ= 0.9937c

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e time interval will be 19.11 hrs. Explanation:Here length contraction will take place when we TRAVEL with speed comparable to speed of light L = Lo  √ 1−  V^ 2 / c^2 L = Lo √ 1−  (0.81 c)^ 2 /  c^2  =Lo  × 0.6t = L / VT = 0.6 Lo / 0.8 CLO = 0.8 c x 30 hrs / 0.6 = 40 c.hrsIn the SECOND case the speed is 0.9 c then L = Lo √  1−  v^ 2 / c^2 L = Lo √ 1 −  (0.81 c)^ 2 /  c^2 = 0.43 Lot = L/v = 0.43 Lo / 0.9 c = 0.43 x  40 c.hrs/ 0.9 c t = 19.11 hrs Thus the time interval will be 19.11 hrs.

When LIGHT passes through a PRISM, the DIFFERENT frequencies of light travel at different velocities. Because of refraction, the different velocities MAKE the angles of refraction different, causing the light to travel in slightly different DIRECTIONS.

in km= 9.5 TRILLIAN kmExplanation:A light-year is the distance light travels in ONE year. How far is that? Multiply the NUMBER of seconds in one year by the number of miles or KILOMETERS that light travels in one second, and there you have it: one light-year. It's about 5.88 trillion miles (9.5 trillion km)

Stethoscope is a MEDICAL instrument used for listening to SOUNDS produced within the body chiefly in heart or lungs.in stethoscope the SOUND of the PATIENTS heart beat reaches the doctors ears by multiple reflection and by amplifying sound.i hope it will help U ☺☺

there is no 10TH DIMENSIONAL

tion:Laurent's Half-Shade Polarimeter. It is used for the MEASUREMENT of the ANGLE of rotation of OPTICALLY ACTIVE substance in solution. That is, angle through which the plane of the polarized light is rotated on PASSING through a specific length of solution of known concentration.

May be RAMAN EFFECT which was discovered by sir CV Raman in 1928 and he received Noble prize for that in 1930

The following are the POSITIVE impacts of globalisation on the Indian economy:1) Increased FOREIGN INVESTMENT in India. ...2) Opening up of the Indian MARKETS to foreign goods.3) The greater competition among companies leading to improvement of quality with reduction in prices of the products..

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A four-dimensional SPACE or 4D space is a mathematical EXTENSION of the concept of three-dimensional or 3D space. Three-dimensional space is the simplest possible abstraction of the OBSERVATION that one only needs three numbers, called dimensions, to describe the sizes or locations of objects in the EVERYDAY world.

In classical mechanics, the Kepler problem is a special CASE of the two-body problem, in which the two BODIES interact by a central force F that varies in strength as the INVERSE SQUARE of the distance r between them. The force may be either ATTRACTIVE or repulsive.plzzz mark the answer brainliest! ☺☺✌

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WordArt is a TEXT modifying feature in Microsoft Word, a popular word processing program. It includes effects such as shadows, outlines, colors, gradients, and 3D effects that can be added to a word or phrase. WordArt can also bend, stretch, skew, or otherwise MODIFY the shape of the text.WordArt can be added within a Word document by selecting Insert→Picture→WordArt... This OPENS the WordArt dialog BOX, which gives the user several text styles to choose from. Once a STYLE has been selected, the user types the text that the style will be applied to and the result is saved as an image within the document. The WordArt can then be moved or modified by selecting Modify→WordArt

know the ANSWER and it is tough question in I am in 6TH so I can't answer but I can PRAY for you so that someone can HELP you please please please someone can help and so so so so so so sorry for you

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Convave LENS is USED to CORRECT the DISEASE of MYOPIA.......

it will TRAVEL same DISTANCE if we NEGLECT EXTERNAL FORCE

tion:When two waves are observed at a point in space, they are periodically in and out of phase. That is, there is a temporal (time) alternation between CONSTRUCTIVE and destructive interference. As a consequence, we refer to this PHENOMENON as temporal interference. For example, if two tuning forks of slightly different frequencies are struck, one heara a sound periodically VARYING amplitide. This phenomenon is CALLED beating. Beating is the periodic variation in amplitude at a given point due to the superposition of two waves having slightly different frequencies. The waves produced are called Beats. The number of amplitude MAXIMA one hears per second, or the beat frequency, equals the difference in frequency between the two sources.

the PERSON is injuredExplanation:HURT CAUSED INJURY

1.live WIRE- red2.nuetral wire- BLACK3. EARTH wire- GREEN

this is because there is no potential gradient along any DIRECTION parallel to the surface , and so no electric FIELD parallel to the surface. This MEANS that the electric LINES of force are ALWAYS at right angle to the equipotential surface.Explanation:please follow me the brainiest

alpha is POSITIVE and beta is negative. In algebra, alpha is USED as a positive formula and beta is used as a negative formula in LINEAR equation in two variables

Here is the ANSWEREXPLANATION:

here is your ans343m/s

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The principle of RELATIVITY, according to which the laws of physical phenomena should be the same, WHETHER for an observer fixed, or for an observer carried ALONG in a uniform movement of translation; so that we have not and could not have any MEANS of discerning whether or not we are carried along in such a motion.Explanation:like it and mark me as brainliest and follow MEE

4-60 kg m/sExplanation:VELOCITY=(2×HEIGHT /g) ^1/2where, g=acceleration due to gravity=10Initial velocity=(2×INITIAL height /g) ^1/2 =20m/sFinal velocity=(2×final height /g) ^1/2 - 10m/s('-' is used because direction is opposite to initial direction) Change in momentum=mass×change in velocity=2×[20-(-10)]=60 kg m/s

➧ Resistance of a piece of wire is proportional to its length. A piece of wire has a resistance R. The wire is CUT into five equal parts.➧ Therefore, resistance of each part➾ R/5➧ All the five parts are connected in parallel.∴equivalent resistance (R') is given AS1 / R'➾ 5 / R + 5 / R + 5 / R + 5 / R + 5➾ 5 + 5 + 5 + 5 + 5 / R➾ 1 / R' = 25 / R➾ R / R' = 25 ...✔Explanation:please Mark as the answer of the BRAINLIST