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I WOULD guess that, since CARBON dioxide is more dense than 'air' that you breathe, it has sank into the well and fills it.Similar THINGS happen with those deck lantern/candles that don't have holes in the bottom: eventually the carbon dioxide builds up and suffocates the FUEL for the CANDLE flame — oxygen. The flame goes out as a result. For the well, there isn't enough viable 'air' to breathe for you.

The initial VELOCITY for both the PROJECTILES is the same. Let it be U m/s. Where, gamma is the angle of projection, u is the initial velocity and g is the ACCELERATION DUE to gravity. Hence, the ratio of the maximum heights projectiles lauched from angles 30° and 60° is 1/3

tion:The mass of the block A is 2kg, the coefficient of friction is 0.2.As the blocks do not MOVE THEREFORE, the tension in the string must be equal to the FORCE of friction on block A. Applying Newton's second law for block A,T=μ s m A g=0.2×2×10=4NApplying Newton's second law for block B,T=m B g4=m B ×10m B =0.4kgThus, the maximum mass of the block B is 0.4kg.Mark as brainlliest pls plspls

here you goExplanation:

When String is Horizontal (H = r): This is the minimum VELOCITY when the string is horizontal at the point M of the VERTICAL circle required for a body looping a loop. If the velocity 'v' of the body is such that, v ≤ √2gr, then the body oscillates about point L, the lowest point of the vertical circle.

tion:The higher the ELECTRONEGATIVITY of an atom, the GREATER its ability to attract shared electrons. The electronegativity of atoms increases as you move from left to right across a period in the periodic table. The electronegativity of atoms decreases as you move from top to bottom down a group in the periodic table.Atoms BECOME more electronegative across a period due to the increase in Zeff (effective nuclear charge). The number of protons increases across the period, yet the amount of shielding does not increase, leading to INCREASED electronegativity. Explain the decrease in electronegativity down a group.

A, B and C are in thermal EQUILIBRIUM and B is at temperature 45 0 C, then ACCORDING to zeroth law of thermodynamics both A and C will ALSO be at temperature 45 0 C.

doubledExplanation:If the mass of both of the objects is DOUBLED, then the force of gravity between them is quadrupled; and so on. Since GRAVITATIONAL force is INVERSELY PROPORTIONAL to the SQUARE of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces.

Question is attached in image.To find:Value of horizantal range (BC) ?CALCULATION:Let the velocity of Projection be u_(x) = 20 m/sNow, SINCE the OBJECT was thrown horizantally as represented in the image, we can say that : vertical component of initial velocity u_(y) = 0 m/s.Now , let range be R :So, range of Projectile will be 40 metres.

Advanced sunrise and delayed sunset are PHENOMENA CAUSED due to ATMOSPHERIC refraction. In this the Sun appears to rise EARLY by 2 MINUTES and set late by 2 minutes

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0.1 METRES...................

If we HIT a sponge ball with a tennis bat. so, the sponge ball can fly highly.Explanation:please follow me or MAKE me a BRAINLIEST PLS....so,I can help your DOUBTS.

I am a DICOVERY BOY who WANT to DISCOVER SOMETHING

A vibrometer having a natural frequency of 4 rad/s and ξ=0.3 is ATTACHED to a STRUCTURE that performs a HARMONIC motion. If the DIFFERENCE ...

THE ANSWER:-Vacuum PERMITTIVITY, SOMETIMES CALLED the electric CONSTANT, is represented by ε0 and has a value of approximately 8.85×10−12 F/m.

tion:Conductors conduct electrical current very easily because of their free ELECTRONS. INSULATORS oppose electrical current and make POOR conductors. ... Some common insulators are glass, air, plastic, rubber, and WOOD.

The coefficient of STATIC friction between the TWO BLOCKS is 0.Hope it helps MARK as brainlliest PLS plspls process in attachment OK bye good night

oplacehjsnszjsnExplanation:scramblesknnjzjzjz

The TEMPERATURE, HUMIDITY, rainfall, windspeed are CALLED FACTORS of weather. hope it HELPS you✌

05epyd66dhlspyz06ge0 zyztExplanation:3

the CORRECT ANS is: DENSITY of the BLOCK = 0.9g/cc.

275cm 2 =0.0275m 2 .(foronelog)Force = 2200 kg × 10 = 22000NArea of fourleg = 4×0.0275m 2 PRESSURE = AreaForce = 0.1122000 P a =2×10 5 P

ProtonsExplanation:The NUCLEUS of an atom contains PROTONS and neutrons. The positive charge on the nucleus of an atom is due to protons. pls mark as BRIANLIAST answer and pls FOLLOW me

the ANSWER is 250Explanation:Just DIVIDE 750cm/3

diminished , INVERTED and real image is formed when object is PLACED at infinite DISTANCE from MIRROR.

The SURFACE TENSION of a liquid is ne/70 cmdy. In MKS system its value is .....? ANSWER: The answer is 7x10^-2 N/m.

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-Power of the bulb = 250 WTime required = 6 hoursTo FIND :-The energy dissipated in kWh.The energy dissipated in J.Solution :-We know that,E = Energyp = Powert = TimeUsing the FORMULA,GIVEN that,Power (P) = 250 WTime (t) = 6 hours = 21600 secSubstituting their values,⇒ 250 = E/21600⇒ E = P × T⇒ E = 250 × 21600⇒ E = 5400000 J = 5.4 × 10⁶ JTherefore, the energy dissipated is 5.4 × 10⁶ J.

Convert 100 Joules to ERG (J/cm to erg) with our CONVERSION calculator and conversion TABLES. To convert 100 J/cm to erg use direct conversion formula below.100 J/cm = 1000000000 erg.You also can convert 100 Joules to other Energy (popular) units.

The highest temperature recorded in ASIA was 54.0 °C (129.2 °F) at Tirat Zvi, Israel on June 21, 1942 , India's average Temperature has risen by around 0.7 degree Celsius during 1901–2018 and at Ahvaz, Iran on June 29, 2017.Explanation:PLEASE please mark my answer as brainlist

tion:ANSWER: M is the MOLAR mass of GAS which is in grams per MOLE of the gas. The ideal gas equation is PV = NRT which is the gas equation relating pressure(P) volume(V), to n(the number of moles of gas), R(the universal gas constant), and T(temperature of the gas).