One over 4 pi epsilon nought r times the product of the two protons' charges (probably pretty high ... ???
Answer:
the redshift of galaxies as they moved away.
Explanation:
Answer:
The value is 
Explanation:
From the question we are told that
The mass of the Ping-Pong is 
The terminal speed is 
The drag force is 
Generally the resultant force on the Ping- Pong is mathematically represented as

when terminal velocity is attained , the resultant force is zero so

=> 
=> 
=> 