Answer:
A) No conclusion can be drawn without more information about the two balls.
Explanation:
Required Heat = Q
Q = Mass * specific heat of water * change in temp.
Q = 5g * 1g/cal*degC * 20degC
Q = 100 cal of heat is required
To convert calories to Joules,
1 cal = 4.184 Joules
100cal = 418.4 J of heat is needed
The answer to the question you have asked is 1.8 miles east.
The answer is B electrons will be rubbed from one surface to another