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c) sublimation is a physical change for there is no change in the CHEMICAL composition of sublimable SUBSTANCES. They just change in the STATE of matter ( solid to gas ).

does not MELTS Explanation:LIKE teflon it is the PLASTICS that does not melts .It is GOOD to use

motionAs the ANSWER the FRICTION ALWAYS OPPOSES MOTION

en and WOMEN typically have different sizes of vocal fold; reflecting the male-female DIFFERENCES in larynx size. ADULT male voices are usually lower-PITCHED and have LARGER folds. ... The difference in vocal folds size between men and women means that they have differently pitched voices.

Electrical switches are electromechanical devices that are used in electrical CIRCUITS to control POWER, detect when systems are outside their operating ranges, signal controllers of the whereabouts of MACHINE members and workpieces, PROVIDE a MEANS for manual control of machine and process functions, control lighting, ...

Magnitude of AREA under the v−t graph GIVES the distance travelled by the body. For  0≤t≤4 s : Displacement  S  1 ​   = Area =  2 1 ​   ×(20+40)×2+  2 1 ​   ×(1+2)×20=90 m For  4≤t≤5 s : Displacement  S  2 ​   = Area =  2 1 ​   ×1×20=10 m TOTAL distance d=S  1 ​   +S  2 ​   =90+10=100 m OPTION A is correct.

which LANGUAGE is this

Specific gravity bottles determine LIQUID densities by measuring the DIFFERENCE between an EMPTY and filled BOTTLE and dividing by an equal VOLUME of water to find the specific gravity of the substance. These bottles are also known as a density bottle or relative-density bottles.

(i)(a) A momentary deflection is SHOWN by the galvanometer.   (b)  A momentary deflection is shown by the galvanometer but in the opposite direction.  (ii)  When key is closed or opened, the current in the coil I  change, therefore the magnetic field linked with coil II  changes and HENCE a current is induced in it.  (iii)  The electromagnetic induction-The process by which a changing magnetic field in a conductor induces a current in another conductor.  (iv)  Primary coil - coil I Secondary coil - coil II   (v)  Fleming's Right-Hand Rule: Stretch the first three fingers of the right hand MUTUALLY perpendicular to each other such that the forefinger gives the direction of magnetic field and the thumb POINTS in the direction of the motion of a conductor then, the middle FINGER will give the direction of the induced current

we can walk due to friction ( ragadd)Explanation:Friction is the resistance to motion of one OBJECT moving relative to ANOTHER. It is not a fundamental force, like gravity or electromagnetism. Instead, scientists BELIEVE it is the result of the electromagnetic ATTRACTION between charged particles in two touching surfaces.

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A POINT mass attached to a light inextensible string and suspended from fixed SUPPORT is called a simple pendulum. ... The vertical distance between the point of suspension and the centre of mass of the suspended body (when it is in mean POSITION) is called the length of the simple pendulum denoted by L.

tion:GRAVITY on Neptune:All told, it is 3.86 times the size of EARTH and 17 times as massive. But, being a gas giant, it has a low density of 1.638 g/cm3. All of this WORKS out to a SURFACE gravity of 11.15 m/s2 (or 1.14 g), which again is measured at Neptune's cloud tops.

1. an image is colourful while a shadow is black2. solar cell is a cell that is CHARGED by by the solar power of the SUN. its two uses are: 1 USED in satellites, 2 used in solar OPERATED watch

The microbes present in the curd HELP in setting if the TEMPERATURE of the mixture REMAINS APPROXIMATELY between 35°C to 40°C. At places, where room temperature remains much below the range, setting of curd becomes difficult

the ACCELERATION due to gravity and gravitational force on Uranus is equals to is a=GM/R^2Explanation:MARK mark me as a BRAINLIEST REALLY required

the ANSWER is 24.79 m/s2

Letx consider, x= TOTAL DISTANCE covered by the car,Time taken to complete the half distance with VELOCITY v=40km/h,t 1 = 2×40x = 80x HR. . . . .(1)The time taken to complete another half distance with velocity u=60km/ht 2 = 2×60x = 120x hrThe total time taken, t=t 1 +t 2 t= 80x + 120x = 48X hrThe average speed of the car, v avg = x/48x =48km/h

a) risesI THINK SOO......

The SURFACE GRAVITY of Mars can THEREFORE be expressed mathematically as: 0.107/0.532², from which we get the value of 0.376. Based on the Earth's own surface gravity, this works out to an ACCELERATION of 3.711 meters PER second squared

A+B=16...(1)tanα= A+BcosθBsinθ =tan90Thus, A+Bcosθ=0⇒cosθ=− BA ...(2)We ALSO have: 8= A 2 +B 2 +2ABcosθ ...(3)Solving these we get, A=6N and B=10N

Properties of ELECTRIC FIELD Lines. The field lines NEVER intersect each other. The field lines are perpendicular to the SURFACE of the charge. The magnitude of charge and the number of field lines, both are proportional to each other.

of block =91.3kg/m^3uplift from air =1.3kg×gDownforce from BALLOON =1kg×gSo, Extra weight that can be lifted =0.30gNSo, Considering buoyant force on itself,⇒0.30g+1.3vg=91.3vg [where V is Volume of the block]⇒0.3=90V⇒V= 1/300 m^3plz FOLLOW me and thank my ANSWERS ❤

the WALL at the bottom of a dam can WITHSTAND a pressure of 784,000claculate the pressure above which the dam MAY collapse the density of water is 1g/cm^3 and the acceleration due to gravity on the surface of the earth is 9.8ms^2Explanation:PLEASE MAKE as brainlistplease make as brainlist

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the acceleration on EARTH is due to gravity as we know that the mass mass INTERACTION is known as GRAVITATIONAL FORCE so as we know that in our Earth there is a gravity which will attract and mass object with an acceleration g.hope you like itplease mark as brainliest really REQUIRED

muscular FRICTIONAL and GRAVITATIONAL gravitational FORCE is NON contact forcemuscar and frictional forces are contact forces

Offline...EXPLANATION:ALWAYS GOD bless u nd your family. Always be happy. Take care nd safe.

The ACCELERATION due to GRAVITY on Venus is 8.87 m/s2.Explanation:HOPE it helps you..!

tion:GRAVITY on Mercury:HOWEVER, THANKS to its high density – a robust 5.427 G/cm3, which is just slightly lower than Earth's 5.514 g/cm3 – Mercury has a surface gravity of 3.7 m/s2, which is the EQUIVALENT of 0.38 g

by SWITCHING off the FAN when there is no needby USING SOLAR ENERGY

at the lowest LEVEL I mean to say in the lithosphere the atmospheric PRESSURE is the highest the LAYER just above the EARTH's SURFACE

A solution is a HOMOGENEOUS mixture of two or more substances.The particles of solute in a solution cannot be SEEN by the naked eye.A solution does not allow beams of light to scatter.A solution is stable.The solute from a solution cannot be SEPARATED by FILTRATION (or mechanically).

duck is the ANSWEREXPLANATION:pls MAKE me brainliest and you will get 3POINTS

The BOTTOM of this CONTAINER supports the entire weight of the fluid in it. The VERTICAL sides cannot exert an upward force on the fluid (since it cannot withstand a shearing force), and so the bottom MUST SUPPORT it all.

tometre (AMERICAN spelling femtometer, symbol fm derived from the Danish and Norwegian word femten, "fifteen" (15), Ancient Greek: μέτρον, metrοn, "unit of MEASUREMENT") is an SI unit of LENGTH equal to 10−15 metres, which means a quadrillionth of one.