Question

THE MOON ORBITS THE EARTH AT A SPEED OF 1.02 KILOMETERS PER SECOND. USE DIMENSIONAL ANALYSIS TO CONVERT THIS SPEED INTO MILES PER HOUR.

Answer 1

Please do not post all-capitalized questions.

There are 3600 sec/hr and 1.609 km/mile.

Multiply 1.02 km/sec by the appropriate conversion factors,
(3600 s/h) * (1 mile/1.609 km)