I think option C is correct..hope it helps
        
                    
             
        
        
        
This is a statement but yes a star forms inside nebulae which are gigantic clouds of gas. stars form inside as the gases own gravity pulls it together after which it becomes large enough to perform fusion and become a star.
        
             
        
        
        
Answer:
It is important because it carries useful energy through your house that you can use for a variety of tasks.
Explanation:
Hope this helped ! 
 
        
             
        
        
        
Answer:
7.5 km/h (2.1 m/s) due east
Explanation:
The average velocity of the person is given by:

where
d is the displacement
t is the time taken
In this problem,
d = 15 km is the displacement
t = 2.0 h is the time elapsed
so the average velocity is

and the direction is the same as the displacement (east).
We can also convert the velocity into SI units (m/s). We have:
d = 15 km = 15,000 m
t = 2.0 h * 3600 s/h = 7200 s

 
        
                    
             
        
        
        
Answer:
0.23 s
Explanation:
First of all, let's find the time constant of the circuit:

where
 is the resistance
 is the resistance
 is the capacitance
 is the capacitance
Substituting,

The charge on a charging capacitor is given by
 (1)
 (1)
where
 is the full charge
 is the full charge
we want to find the time t at which the capacitor reaches 90% of the full charge, so the time t at which

Substituting this into eq.(1) we find
