If joe rides south on his bicycle in a straight line for 15 min with a average speed of 12.5 km/h, how far has he ridden?

Write the function getkthdigit(n, k) that takes a possibly-negative int n and a non-negative int k, and returns the kth digit of n, starting from 0, counting from the right

What is the name of the perceived change in a sound wave’s frequency due to motion between the observer and the sound source?

Atemperature inversion can cause a warm air mass to move over a colder air mass. this traps the colder air mass and prevents surface air from rising. this may result in which of these? a) smog b) acid rain c) freezing rain d) a thunderstorm