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heya mateThe RESISTANCE of a CONDUCTOR is directly proportional to its length (L) as R ∝ L. THUS doubling its length will DOUBLE its resistance, while halving its length would halve its resistance. ALSO the resistance of a conductor is inversely proportional to its cross-sectional area (A) as R ∝ 1/A.plz mαrk αѕ вrαnlíѕt

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Wind, solar, and hydroelectric systems GENERATE electricity with no associated AIR pollution emissions. Geothermal and biomass systems emit some air pollutants, though TOTAL air emissions are generally much LOWER than those of coal- and natural gas-fired power plantsExplanation:follow me

howed that the VOLUME of a SAMPLE of a gas is inversely proportional to its pressure (BOYLE's law)Charles and Gay-Lussac demonstrated that the volume of a gas is directly proportional to its temperature (in kelvins) at CONSTANT pressure (Charles's law)_________________________________

12m/s & 50sExplanation:Given:LENGTH of train = 60mTime is taken to cross the pole = 5sLength of BRIDGE = 540m Speed of train = Speed of train = Speed of train = 12m/sNow, distance to be covered to cross a 540m long bridge = length of the train + Length of bridgeDistance to be covered = 60 + 540 = 600m HENCE, time taken : → 600/12 = 50s

hello mate.. Explanation:efficiency of the cycle is GIVEN as η=1− T 1 T 2 . Here T 1 is the temperature of the source and T 2 is the temperature of the sink. The temperature of the sink is given as 27 o C=300K. Thus we get 0.5=1− T 1 300 orT 1 =600K= 372degree Celsius HOPE you get your answer plz follow me follow back will be done plz mark as brain list answer

a=v-u/tu=80km/hv=60km/ht=5sec.a=60-80/5a=-20/5a=-4m^2(-) COZ it's deceleration.pls MARK it as BRAINLIEST^_^:-)❣️

The force EXERTED by the HINGE on the rod is CENTRIPETAL force and is GIVEN by:F=mrω 2 ⟹F=mlω 2

NO ACCELERATION HAPPENS HEREExplanation:MARK AS BRAINLIEST PLZ THANK YOU FOR ASKING

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tion:Simple machines are USEFUL because they reduce effort or extend the ability of people to perform tasks beyond their normal capabilities. Simple machines that are WIDELY used include the wheel and axle, PULLEY, inclined plane, screw, wedge and lever.

Explanation:Heat dissipated in a RESISTANCE is given by H=i  2 ×r×t For OPTION A   H=5  2 ×10×2×60=30000W For option B   H=4  2 ×10×3×60=28800W For option C   H=3  2 ×10×6×60=32400W For option D   H=2  2 ×10×5×60=12000W from calculation we can see the heat  Which is MAXIMUM in CASE of 3 ampere  current for 6 minutes.

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hello mate.. Explanation:ACCORDING to the CARNOT theorem, the reversible engine will ALWAYS have a greater efficiency than the irreversible one. ... The Carnot cycle achieves maximum efficiency because all the heat is ADDED to the working fluid at the maximum temperature.hope you get your answer

ime TAKEN by satellite to complete one revolution around Earth = 48 hours Velocity of Satellite = 1500 km/hTo Find:The Radius of orbit in which the satellite is revolving around the Earth Solution:Distance covered by satellite in one revolution can be OBTAINED by USING Distance = Speed x Time Distance = (1500 km/h) x (48 hours) Distance = 72000 km --------------- ( 1 ) We know that CIRCUMFERENCE of orbit = Distance covered by satellite -----------( 2 ) Using equation (1) in equation (2) Circumference = 72000r = 11454. 5 kmHence the Radius of orbit in which the satellite is revolving is APPROXIMATELY equal to 11455 km.

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A clock with an iron PENDULUM KEEPS correct time at. If the room temperature RISES to, the error in sconds per day will be (coefficient of linear expansion for iron is

a measure in which the order of EVENTS from past to PRESENT and the interval between them can be ordered, but period has a longer geographical TIME division and includes an era.For Quick Help in 5 HOURS Follow Me

given :magnification=m=-4[since it is REAL and magnified]V= 60cmobject distance=u=?magnification =m=V/uu= 60/-4 =-15cmFocal length=f=?f=1/v - 1/u=1/60 +1/15=4+1/60=5/60f=60/5=12cms∴ Foal length of convex lens=12cmPower=P=?p=1/f (in m)=100/f ( in cm)=100/12=+8.33 Diopters∴ P=+8.3 Dhope it helps plz mark my ANSWER as the BRAINLIESTTHANK you

230°C is your answerhope it HELPS MARK as BRAINLIEST

PLSSSSSSSSSSSSSSSSSSSSSMARK ME AS BRAINLIEST..........I HELP U NA ,SO PLS HELP ME TOOExplanation:Measurement of diameter of wire with a screw gauge: The wire WHOSE thickness is to be determined is placed between the anvil and spindle end, the thimble is rotated until the wire is FIRMLY held between the anvil and spindle. The rachet is PROVIDED to avoid excessive pressure on the wire

U= -10 cmf= 15 cm1/f = 1/v + 1/uSo, 1/v= 1/f - 1/u1/v= 1/15 + 1/101/v = (2+3)/30 (lcm)THEREFORE v=5/30 = 6 cmHence the image is formed behind the mirror and therefore it is VIRTUAL and erecthope it helps plz mark my answer as the brainliestthanks

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In FIG,By PYTHAGORAS Theorem = PR² + QR² = PQ²= 5² + 4² = PQ²= 25 + 16 = PQ²= 41 = PQ²∴ PQ = √41 KMHOPE THIS HELPS YOU..........PLZ MARK AS BRAINLEST.....