Because the heat energy which is being supplied to the solid to form liquid increases the potential energy of the particles.

]]>The answer is that an object is stationary when it’s velocity is zero (so the acceleration will also be zero as acceleration is the rate of change of velocity) or also when it’s velocity is constant. Therefore, we can’t deduce from an acceleration time graph that whether an object is stationary or not.

]]>Yes. It confused me at first too, until I thought of it as “-0.1cm + 0.06cm” since you have to add the vernier reading to the scale reading immediately to the left of zero.

]]>However, I think there may be an error in the second figure under “Compensating for Zero Error.” To my reading, the error appears to be – 0.06 cm, not – 0.04 cm.

Am I missing something?

]]>Pls help ]]>

If the light is other than white colour then what type of lines will appear on the screen?

Pls help

the shortest path it takes to go from starting point to the destination example: sara goes to south 2 km (A) then 2 km to east (B) and 2 km to north (C) (draw a diagram for better understanding) 2 km + 2 km + 2 km = 6 km that’s our distance for displacement the shortest way to reach her destination (C) was to go directly from A to C that means 2 km (one path to reach one path takes 2 km).

]]>Rn its not here ]]>

Yep

]]>It’s highest for Fe and is stable till Ni but after Ni the stability decreases

]]>For heavy nuclei as we move toward higher atomic mass the number of neutrons (N)> the number of protons (Z) and hence increasing the coulomb forces between the nucleus resulting in an unstable nuclei

]]>Because stability also depends on whether the number of protons and neutrons are (even-even), (odd-odd) or (even-odd~odd-even)

]]>Very Helping….thanks !!!

]]>Because thermal expansion used for heating but it was a little heat of sun

]]>…

It’s very helpful to me.

]]>its usually caused by faulty instruments

]]>ask your brain

]]>Center of mass for a triangle lies at centroid where medians of triangle met. And here medians are wrongly draw.

Because median end at center of line. ]]>

Very Helpful

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