Q1. A civil engineer has calculated that the magnitude of the maximum centripetal acceleration of the car on a certain horizontal curve is 4.40 m/s^2. What is the minimum radius of this curve for the car travelling at 25 m/s?
Q2. A flask containing 800 g. of water is heated. If the temperature of the water increases from 27 degrees Celsius to 88 degrees Celsius, how much heat (in joules) did the water absorb?