TS
G. Think and answer.
What would happen if there were no gravitational force?
2 You push against a wall
. Is work being done? Explain.
3. Why do you think powder is spread on a carom board while playing?
4. What would happen if the Sun was not there?
Answers
Answer:
ans:- 1 = Without the force of gravity to hold it together, the intense pressures at its core would cause it to burst open in a titanic explosion. The same thing would happen to all the other stars in the Universe. ... Eventually there would be no clumps of matter, like stars or planets, anywhere in the Universe.
ans:-2=Even though the man exerts force on the wall , the wall does not move. Work done = force applied * displacement and since the displacement of the wall is zero. , work done is also zero.
ans::-3=We sprinkle powder on carrom board to make the surface of the board smooth. This reduces the friction between the surface of the carrom board, the striker and the coins. As a result, the coins and the striker can move easily on the carrom board.
ans:-4=With no sunlight, photosynthesis would stop, but that would only kill some of the plants—there are some larger trees that can survive for decades without it. Within a few days, however, the temperatures would begin to drop, and any humans left on the planet's surface would die soon after.
Explanation:
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3.when we spread the power on carom the suface becomes and it will be easier to play.
4.if there is no sun the will stay cold. Sun has an ability that is. it can maintain the temperature on earth.