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Explanation:An evaporative cooler (also swamp cooler, swamp box, desert cooler and wet air cooler) is a device that cools air through the evaporation of water. Evaporative cooling differs from TYPICAL air conditioning systems, which use vapor-compression or absorption refrigeration cycles. Evaporative cooling uses the fact that water will absorb a relatively large amount of heat in order to evaporate (that is, it has a large enthalpy of vaporization). The temperature of dry air can be dropped significantly through the phase transition of liquid water to water vapor (evaporation). This can cool air using much less energy than refrigeration. In extremely dry climates, evaporative cooling of air has the added benefit of conditioning the air with more moisture for the comfort of building occupants. The cooling potential for evaporative cooling is dependent on the wet-bulb depression, the difference between dry-bulb temperature and wet-bulb temperature (SEE relative humidity). In arid climates, evaporative cooling can reduce energy consumption and total equipment for conditioning as an alternative to compressor-based cooling. In climates not considered arid, indirect evaporative cooling can still take advantage of the evaporative cooling process without increasing humidity. Passive evaporative cooling strategies can offer the same benefits of mechanical evaporative cooling systems without the complexity of equipment and ductwork. Contents 1 Overview 2 Physical principles 2.1 Other types of phase-change cooling 3 Applications 3.1 Other examples 4 Designs 4.1 Direct evaporative cooling 4.2 Indirect evaporative cooling 4.2.1 Maisotsenko cycle 4.2.2 Theoretical designs 4.3 Hybrid designs 4.3.1 Two-stage evaporative cooling, or indirect-direct 4.3.2 Evaporative + conventional backup 4.4 Materials 4.5 Design considerations 4.5.1 Water use 4.5.2 Shading 4.5.3 Mechanical systems 4.5.4 Exhaust 5 Different types of installations 5.1 Typical installations 5.2 Evaporative (wet) cooling towers 5.3 Misting systems 5.3.1 Misting fans 6 PERFORMANCE 7 Comparison to air conditioning 7.1 Advantages 7.2 Disadvantages 8 See also 9 References 10 External links

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a graph, if there is a stright LINE, it is in motion. Because, when the object is in motion, it has same RESPECT to speed and TIME. Hope it helps u...Do mark as BRAINLIST...

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the ANSWER is 2 m/s²option C

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s=urt wala formula PUT karo answer khuch NIKAL ayga. ma ANBI solve karke bhej RAHA HU

Anything which OCCUPIES space and has mass is CALLED MATTER. MARK as the BRAINLIEST pleaseFollow me (◍•ᴗ•◍)❤

s equation says 1/f = 1/Do + 1/DI, where f is the focal LENGTH of the LENS, Do is the DISTANCE from the object to the lens and Di is the distance from the lens to the in-focus projected image.

herical mirror - In a spherical mirror , the pole refers to the CENTRAL point of apparture . It is also known as the central point of the reflecting surface . The CENTRE of curvature refers to the centre of the SPHERE , from which the mirror was cut . The distance between the centre of curvature and the pole of a spherical mirror is known as the the radius of Curvature Principal axis is an imaginary line passing through the pole and the centre of curvature of a spherical mirror .________________Additional INFORMATION - The distance of any OBJECT from the pole of a spherical mirror is known as object distance. The distance of an image formed by an object from the pole of a spherical mirror is known as image distance . ______

A particle REACHES its HIGHEST point when it has covered exactly one half of its horizontal range. At the highest point projectile MOTION, the tangent drawn is PARALLEL to x-axis. Hence, slope at this point is ZERO.

A filament light bulb is just another NAME commonly used for the vintage Edison light bulbs. Those reproduction bulbs are made to look like the original Edison bulb CREATED over 100 years ago. The word Filament itself refers to the wire or thread inside the bulb which lights up when you TURN it on.Explanation:PLEASE mark as BRANLIST

ement is the shortest distance travelled by the body between its initial and final positiondisplacement can be zero only when the initial and the final position of the body is the sameFor eg:(1)A body moving in circular motion(in this case the NET DISPLACEMENT is zero as the initial and the final position of the body is the same)NOTE:this is only VALID if the body completes circledisplacement is not zero if the body moves half a circle. that gives the displacement becomes equal to the diameter the circle(2)A car moves from point A to B and then returns to point A in this case also the Displacement is ZERO

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Area of each PLATE A=6×10 −3 m 2 DISTANCE between the plates d=3mm=0.003mCapacitance of CAPACITOR C= dAϵ o ∴ C= 0.0036×10 −3 ×8.85×10 −12 =17.7pFVoltage across the capacitor V=100 voltsThus charge on each plate Q=CV∴ Q=17.7×10 −12 ×100⟹ Q=1.77×10 −9 CExplanation:it MAY help U.

Angle of deviation through a PRISM depends on:-(1)Angle of prism(2)Angle if INCIDENCE(3) Refractive index of prism(4) Wavelength of LIGHT

where is the graphExplanation:PLEASE WRITE WHOLE QUESTION i will surely help you

ᴡʜᴇɴ ᴀ ʙᴏᴅʏ ᴍᴏᴠᴇs ɪɴ sᴛʀᴀɪɢʜᴛ ᴘᴀᴛʜ ᴛʜᴇɴ ᴛʜᴇ ᴅɪsᴘʟᴀᴄᴇᴍᴇɴᴛ ᴡɪʟʟ ʙᴇ ᴢᴇʀᴏ..........

cting WIRE or thread with a high MELTING POINT, forming part of an electric bulb or thermionic VALVE and heated or made INCANDESCENT by an electric current.❤

tion:24Question mA body is vertically projected at 100ms-'. It returnsafter (G = 10 m s-2) (a) 108(6) 208(C) 88(d) 16 sOption 1OPTION 2O Option 3O Option 4c.88

Exert large force on the ball(b) Increases the force exerted by the ball on hands(c) Increase the rate of CHANGE of momentum(d) Decrease the rate of change of momentumAnswer:(d) Decrease the rate of change of momentum2. An object of mass 2 kg is sliding with a constant velocity of 4 m/s on a friction less horizontal table. The force required to keep the object moving with the same velocity is:(a) 32 N                                                               (b) 0 N(c) 2 N                                                  (d) 8 NAnswer:(b) 0 N3. Newton’s third law of motion explains the two forces namely ‘action’ and ‘reaction’ coming into action when the two bodies are in CONTACT with each other. These two forces:CBSE Class 9 Science MCQs Chapter 9 Force and Laws of Motion(a) Always act on the same body(b) Always act on the different bodies in opposite directions(c) Have same magnitude and direction(d) Acts on either body at normal to each otherAnswer:(b) Always act on the different bodies in opposite directions4. In a rocket, a large volume of gases produced by the combustion of fuel is allowed to escape through its tail nozzle in the downward direction with the tremendous speed and makes the rocket to move upward.CBSE Class 9 Science MCQs Chapter 9 Force and Laws of MotionWhich principle is followed in this take off of the rocket?(a) Moment of inertia                   (b) Conservation of momentum(c) Newton’s third law of motion             (d) Newton’s law of gravitationAnswer:(b) Conservation of momentum5. A water TANK filled upto 2/3 of its height is moving with a uniform speed. On sudden application of the brake, the water in the tank would(a) Move backward                        (b) Move forward(c) Come to the rest                      (e) Be unaffectedAnswer: (b) Move forward6. Velocity versus time graph of a ball of mass 50 g rolling on a concrete floor is shown in the figure below. What will be the frictional force of the floor on the ball?CBSE Class 9 Science MCQs Chapter 9 Force and Laws of Motion(a) 0.5 N                                              (b) 50 N(c) 5 N                                                  (d) 0.05 NAnswer:(a) 0.5 N7. The seat belts are provided in the cars so that if the car stops suddenly due to an emergency braking, the persons sitting on the front seats are not thrown forward violently and saved from getting injured. Can you guess the law due to which a person falls in forward direction on the sudden stopping of the car?(a) Newton’s first law of motion                              (b) Newton’s second law of motion(c) Newton’s third law of motion                             (d) Newton’s law of gravitationAnswer:(a) Newton’s first law of MOTION8. When a balloon held between the hands is pressed, its shape changes. This happens because:(a) Balanced forces act on the balloon   (b) Unbalanced forces act on the balloon(c) Frictional forces act on the balloon   (d) Gravitational force acts on the balloonAnswer:(a) Balanced forces act on the balloon9. Which of the following situations involves the Newton’s second law of motion?(a) A force can stop a lighter vehicle as well as a heavier vehicle which are moving(b) A force exerted by a lighter vehicle on collision with a heavier vehicle results in both the (vehicles coming to a standstill(c) A force can ACCELERATE a lighter vehicle more easily than a heavier vehicle which are moving(d) A force exerted by the escaping air from a balloon in the downward direction makes the balloon to go upwardsAnswer:(c) A force can accelerate a lighter vehicle more easily than a heavier vehicle which are moving10. The speed of a car weighing 1500 kg increases from 36 km/h to 72 km/h uniformly. What will be the change in momentum of the car?(a) 15000 kg km/h                           (b) 15000 kg m/s(c) 54000 kg m/s                                              (d) 54000 g m/sAnswer:(b) 15000 kg m/sExplanation:mark me as brainliest

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tion:The pitch of a SCREW is 0.1cm. FIND the least count of the screw GAUZE shown in the figure. ..... * where is your figure

T₁=T₂=T₃Explanation:SINCE the HEIGHT is same;we have H₁=H₂=H₃H=u²sin²θ/2gH₁=H₂=H₃ =>u₁²sin²θ₁=u₂²sin²θ₂=u₃²sin²θ₃                   =>u₁sinθ₁=u₂sinθ₂=u₃sinθ₃T₁/T₂=2u₁sinθ₁/2u₂sinθ₂=1T₁=T₂  SIMILARLY T₁=T₃therefore;T₁=T₂=T₃

Explanation:Solution,Speed = 30 km/hTime taken = 1/2 hourWe know that,DISTANCE = Speed × TimeDistance = 30 × 1/2Distance, D₁ = 15 kmNow, Speed = 25 km/hTime taken = 1 hourDistance = 25 × 1Distance, D₂ = 25 kmSpeed = 40 km/hDistance = 40 × 2Distance, D₃ = 80 kmTotal distance covered = D₁ + D₂ + D₃ = 15 + 25 + 80 = 120 km.Total time taken = 1/2 + 1 + 2 = 3 hr 30 MIN = 7/2 hrsNow, we know that,Average speed = Total distance/Total time taken⇒ Average speed = 120/7/2⇒ Average speed = 120 × 2/7⇒ Average speed = 34.28 km/hHence, the average speed of the car is 34.28 km/h.

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here, SPEED= 20km/hr = 5.555556m/stime= 150minutes= 9000 secondsnow,speed=d/td= speed*TIMED= 5.55556*9000distance= 50000.4meters

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15° angleExplanation:Maximum range is POSSIBLE when angle of projection is 45° so according to that we can SOLVE the ANSWER, check the attachment

BECAUSE RED LIGHT WILL APPEAR FOR LONG DISTANCE. BECAUSE IT'S WAVE LENGTH IS MORE THAT'S WHY RED LIGHT IS USED FOR WARNING SIGNELS AND IN TRAFFIC SIGNELSExplanation:HOPE IT WILL HELP YOU PLZZ MARK AS BRAINLIST