Answer: There are number of electrons.
Explanation:
We are given 50 Coulombs of charge and we need to find the number of electrons that can hold this much amount of charge. So, to calculate that we will use the equation:
where,
n = number of electrons
 Charge of one electron = 
Q = Total charge = 50 C.
Putting values in above equation, we get:
Hence, there are number of electrons.
        
             
        
        
        
Answer:
Both are aquatic animals and are hunters
Explanation:
 
        
             
        
        
        
Answer:
93 km/h 
Explanation:
Given that a bus took 8 hours to travel 639 km. For the first 5 hours, it travelled at an average speed of 72 km/h
Let the first 5 hours journey distance = F
From the formula of speed, 
Speed = distance/time 
Substitute speed and time 
72 = F/5
F = 72 × 5 = 360 km
The remaining distance will be:
639 - 360 = 279km
The remaining time will be:
8 - 5 = 3 hours 
Speed = 279/3
Speed = 93 km/h 
Therefore, the average speed for the remaining time of the journey is equal to 93 km/h
 
        
             
        
        
        
Hello,
Here is your answer: 
The proper answer to this question is "because of there substantial size the rock rests on another rock which keeps it balanced".
If you need anymore help feel free to ask me!
Hope this helps!
        
             
        
        
        
Answer:
The answer to your question is: F  = 0.4375 N. The force will be 16 times lower than with the first conditions.
Explanation:
Data
F = 7 N
F = ?  if the masses is quartered
Formula

Process
Normal conditions F = Km₁m₂/r²  = 7               
When masses quartered        F = K(m₁/4)(m₂/4)/r²  = ?
                                                 F = K(m₁m₂/16)/r²
                                                 F = K(m₁m₂/16r²      = 7/16  = 0.4375 N