Color is the least useful property for identification, as the same mineral type can be found in several different colors due to impurities in the mineral.
Complete question is: While running, a person dissipates about 0.60 J of mechanical energy per step per kilogram of body mass. If a 60-kg person develops a power of 70 W during a race, how fast is the person running? (Assume a running step is 1.5 m long).
Answer: The person running at a speed of 2.91 m/s.
Explanation:
Given: Mass of runner = 60 kg
Runner dissipates = 0.6 J/kg per step
Average power = 70 W
1 step = 1.50 m
Energy dissipated by the runner is as follows.
Formula used to calculate the value of one step 'S' is as follows.
It is known that average velocity is equal to the total distance divided by time interval.
So, total distance for the given situation is as follows.
Hence, speed of the person is calculated as follows.
Thus, we can conclude that the person running at a speed of 2.91 m/s.
It has to lose electrons to become positively charged, so it can attract a negatively charged oxygen ion.
This would have to be jogging
If there is no slipping or skidding going on, then for each revolution, the tire rolls along the ground a distance equal to the tire's circumference.
Circumference of the tire = 2 · π · Radius .
During the same revolution, the small stone stuck in the tread travels in a big semicircular arc that's <em>(2 · π · r)</em> long. (roughly 6.28r)