Write a program that calculates the average of n integers. the program should prompt the user to enter the value for n and then afterward must enter all n numbers. if the user enters a nonpositive value for n, then an exception should be thrown (and caught) with the message "n must be positive." if there is any exception as the user is entering the n numbers, an error message should be displayed, and the user prompted to enter the number again.

The intensity, or loudness, of a sound can be measured in decibels (db), according to the equation , where i is the intensity of a given sound and is the threshold of hearing intensity. what is the intensity, in decibels, [i(db)], when ? use a calculator. round to the nearest whole number. 8 9 19 80

The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 7.0 × 10-6 c/m2. (a) what is the magnitude of the electric field within the cell membrane? (b) find the magnitude of the electric force that would be exerted on a potassium ion (k+; charge = +e) placed inside the membrane.

In a series circuit the __ is the same at every point