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Q.
A rubber ball is dropped to the floor. What force act on the ball to bounce? Does the Earth "bounce" too?
Ans.
The force of the Earth pushing back on the ball causes the ball to bounce. The Earth "bounces" too, but the Earth has so much bigger mass the ball, the acceleration of the Earth isn't noticible.
Q. The Rydberg's constant for hydrogen is 1.097 X 10 7 ms -1 . Calculate the shortest wavelength limit of Lyman series. Data : R = 1.097 × 10 7 m -1 For small wavelen
Define the Newton's Law of Cooling Newton's Law of Cooling: A cup of hot chocolate has cooled from 92°C to 50°C after 12 min in a room at 22°C. a) What is the value for k (
Which word in the sentence is the participle? Around the year 1500, Leonardo da Vinci, a great inventor and painter, designed plans for a flying machine, but it was never built.
snth=u+a/2(2n-1)
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