Consider the common measurement speed = 55 mph. What is the magnitude quantity? Speed, mph, miles per hour, 55

Magnitude = 55

Quantity = Speed

Explanation:

We are told that the speed is 55 mph. This implies that the magnitude is 55 while the unit is mph.

Also, physical quantities are usually things that can be measured such as distance, voltage, temperature e.t.c

kepler used the data from tycho blahe (his mentor) to construct the laws of planetary motion.

answer: 31, 5556. 952 seconds