A body has a weight W on the surface of Earth. What is its weight on a planet whose mass is 15 times that of Earth and a radius that is 4 times that of the earth?
Which of the statements given below are correct? 1. The author of the novel 'An Affair Downstairs' is Sherri Browning. 2. The author of the novel 'White Teeth' is Zadie Smith. 3. The author of the novel 'Atonement' is Ian McEwan.
When iron is exposed to moist air, a reddish brown coating of hydrated Iron (III) Oxide (Fe2O3) is deposited on its surface. This reddish brown coating is called