An automobile antilock brake system (ABS) operates the brakes at 30 pulses per second. How many times do the brakes pulse in 1.00 ds?
How many molecules of water are in one drop if there are 3.42×10^22 molecules in 1.00 g (given that 1 mL = 24 drops)? Assume that 1 mL = 24 drops is an exact equivalent and does not affect the number of significant digits in the answer.