Two charges repel one another at 5N, if the distance between them is 2m and the force increases to 25N, what is the new distance?

During takeoff, the sound intensity level of a jet engine is 170db at a distance of 34 m. what's the sound intensity level at a distance of 1.0 km?

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.

The number of passengers who arrive at the platform of a subway station for the 10 am train is a random variable with a mean of 120 and a variance of 16. find the lower bound of the probability that there will be between 100 and 140 passengers (round off to second decimal place).