Q. A U-shaped tube is open to the air at both ends and is partially filled with Mercury (density = 13,600 kg/m3). Water (density = 1000 kg/m3) is poured into the left arm until the water is 10.0 cm deep. How far upward from its initial position does the mercury rise on the right side?
Q. There are 40 defective batteries in a batch of 1000. The batch will be rejected by quality control if a sample of 10 has at least one defective battery. What is the probability that this batch will NOT be rejected?