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sReflection: Bouncing back of a light ray after hitting a SURFACE. Incident ray: The light ray which STRIKES the surface. Reflected ray: The light ray which returns from the surface after REFLECTION. ... ANGLE of reflection r: Angle between the reflected ray and the normal.Explanation:PLEASE Mark ME aS A Brainliest

tion:The TECHNICAL NAME of a thermos is a vacuum FLASK (you will know the reason why, shortly). To keep your drinks hot or cold, it minimizes heat transfer due to conduction and RADIATION. Convection is not included because convection keeps the TEMPERATURE in a liquid even.

is an INERT GAS.

2000000 HEAT CALORIES. Explanation: The heat capacity of water is 1 calorie for 1 GRAM raised 1 DEGREE C or 4.186 joules of ...

All three states of matter (solid, liquid and gas) expand when heated. The atoms themselves do not expand, but the volume they take up does.When a solid is heated, its atoms vibrate faster about their fixed points. The relative increase in the size of solids when heated is therefore SMALL. Metal RAILWAY TRACKS have small GAPS so that when the sun heats them, the tracks expand into these gaps and don’t buckle.Liquids expand for the same reason, but because the bonds between separate MOLECULES are usually less tight they expand more than solids. This is the principle behind liquid-in-glass thermometers. An increase in temperature results in the expansion of the liquid which means it rises up the glass.

here's ur ANSWER mate...❤️Define 'joule', the SI unit of work and establish a RELATIONSHIP between the SI and CGS unit of work? Joule: One Joule is the work done when a force of 1 N acts on a body and it displaces by 1 m in its own direction. The SI unit of work is joule. C.G.S unit of work = ERGS. 1 J = 1 N × 1 m...Mark me as brainliest and follow meTAMANNA 073

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मागच्या वर्षी दिवाळी मध्ये खूप मोठा पाऊस आला होता. आम्ही खूप तयारी केली होती पण पाऊस आला आणि आम्ही सगळी तयारी वाया गेली. ताईंनी खूप छान रांगोळी काढली होती पण पावसामुळे ती विस्कटली. आम्ही नवीन आणलेला कंदील ही फाटला. रोषणाई ही करता नाही आली, आम्ही केलेली रोषणाई सारक विजस्त होती. आणि सर्वात दुःखद गोष्ट म्हणजे फटाके नर्म झाले. मला आणि माझ्या कुटंबीयांना खूप वाईट वाटले. HOPE it HELPS you... PLEASE MARK me as BRAINLIST..

I am in ST. JOSEPH Convent SENIOR SECONDARY SCHOOL.

(A) CARBON DIOXIDE

This may help youExplanation:The standard unit of force is the newton (N), equal to kg ⋅ m/s 2. Force is one of two quantities of physics that affect the motion of an object, the other being mass.Apart from that, there are few other WAYS we can express the unit of MEASUREMENT of force. Internationally, many prefer to use a single SYSTEM called SI unit for measuring force. The SI unit recognized for measurement of force is Newton.The formula for force states that force is equal to mass multiplied by acceleration. So, if you know mass and acceleration, just multiply them TOGETHER and now you know the force! The UNITS for acceleration are meters per second squared ( m/s2), and the units for mass are kilograms (kg).

Law of conservation of momentum states that when two objects COLLIDE with each other , the sum of their linear momentum always remains same or we can SAY conserved and is not EFFECTED by any action, reaction only in case is no EXTERNAL unbalanced force is APPLIED on the bodies.hope it helps u..!!

Mmmmm What's your QUESTION ??WRITE a question to be ANSWERED.....^_^

truefalsefalsetruefaulttrue

when the DIRECTION of a body moving in a straight line line is constant, it is in UNIFORM motionExplanation:hope it helps mark me in the BRAINLIEST

tion:I HOPE helpful for you PLEASE MARK as a brainlist ANSWER and FOLLOW me

A group of ATOMS carrying a CHARGE is known as POLYATOMIC IONS

same ........ ..............

tion:TJE kinetic energy of flowing WATER REDUCE into zero.And POTENTIAL energy increase s

the motion of an object in which the object travels in a STRAIGHT LINE and its velocity REMAINS constant along that line as it COVERS EQUAL distances in equal intervals of time, irrespective of the duration of the time.

where θ is the ANGLE MADE by the vector with x AXIS. Hence, the angle (θ) made by the vector with the x-axis is 45°.Explanation:....

jouleExplanation:PLSE MARK as BRAINLIST

:-The Distance Covered by the car in 15 s.Given :-Initial velocity = 60 m/minTime of Retardation = 15 secWe KNOW :-First EQUATION of Motion :-Where :-v = Final Velocityu = Initial velocitya = Acceleration due to gravityt = TIME TakenSecond Equation of Motion :-Where :-u = Initial velocityS = Distance Traveleda = Acceleration due to gravityt = Time TakenConcept :-The Final velocity of the car will be zero.i.e, (v = 0)Acceleration will be negative (or Retarded) as the brakes were applied .Convert the initial velocity in m/s from m/min.Given ,Initial velocity = 60 m/min.To convert it in m/s ,. divide the initial velocity by 1/60.==> 60 m/min==> 60 m/min = (60 × 1/60) m/s==> 60 m/min = 1 m/sHence, the initial velocity of the car is 1 m/s.Solution :-To Find the Acceleration of the car :-u = 1 m/sv = 0 m/st = 15 sLet the Acceleration produced be a m/s².Now, Using the First Equation of Motion and SUBSTITUTING the values in it , we get :-Hence, the Acceleration is -0.07 m/s² or Retardation is 0.07 m/s².To Find the Distance covered by the car :-u = 1 m/sa = - 0.07 m/s²t = 15 sLet the distance covered be S m.Using the SECOND Equation of Motion and substituting the values in it , we get :Hence, the distance covered by the car is 7.1 m.

Explanation:Rutherford GOLD-foil experimentIn 1909 Rutherford disproved Sir J.J. ... Because only very few of the alpha particles in his beam were scattered by large angles after striking the gold foil while most passed COMPLETELY through, Rutherford knew that the gold atom's MASS must be CONCENTRATED in a tiny dense nucleus.

each PART EQUAL to each other

velocity-time RELATION

Sorry I don't know this QUESTION because I maths is so WEEK REALLY SOORY

The force (THRUST) is EQUAL to the exit mass FLOW RATE times the exit velocity minus the free stream mass flow rate times the free stream velocity.

1.The difference in temperature of the bodies determines the DIRECTION of flow of heat. Heat flows from a body at higher temperature to one at a LOWER temperature.2.conduction4.Solids conduct heat better than liquids, which are in turn better conductors than gases. ... THUS liquids are usually POOR conductors of heat. In a gas, the particles are far apart, making energy transfer by collision very INEFFICIENT.

first JOURNEY :S=dis/ts=50/4/3hr     (CONVERT 80 min to HR)speed=50 X 3/4 = 75/2Second journey:108km/hr = 30/t30/108=tt=5/18hrTotal journeydistance= 50+30=80kmtime = 4/3 + 5/18 = 29/18hrAvgspeed=80km/29/18=1440/29=49.65km/hr

1. False. A body MOVING along a circular path MOVES such that it traverses equal arc-length in equal intervals of time. Displacement, velocity and acceleration changes at each point on the TRAJECTORY. Hence, the speed is UNIFORM and consequently the kinetic ENERGY is also constant throughout.

distance = 1200m = 1.2 km TIME = 0.25 hrs = 900 SEC 1) speed = distance / time = 1200/900= 4/3 =1.33 m/sec 2) speed = 1.2/ 0.25 = 5km/ sec hope it HELP thankyou

for COMPLETING 8.5 round he will take approx 22.2s (your ANSWER may vary from 22.1s to 22.2s )EXPLANATION:diameter of the circular track=2.5kmtherefore radius of the track =2.5/2=1.25km SPEED of the athlete= 50m/min=3km/hrdistance covered in 1 round= 2πr= 7.85kmtime taken to compete 1 round = dist./speed=2.61stherefore time taken to COMPLETE 8.5 round=8.5×2πr/3=22.2s