Explanation:
It is given that,
Focal length of the concave mirror, f = -13.5 cm
Image distance, v = -37.5 cm (in front of mirror)
Let u is the object distance. It can be calculated using the mirror's formula as :



u = -21.09 cm
The magnification of the mirror is given by :


m = -1.77 
So, the magnification produced by the mirror is (-1.77). Hence, this is the required solution.
 
        
             
        
        
        
Answer:
60a in a circuit with a 12v battery
Explanation:
60a in a circuit with a 12v battery
 
        
             
        
        
        
Based on the options given, the most likely answer to this query is C) 4577 liters.
Upon computation of the given variables the result seems to be 4577 L
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Force exerted by Justin=300 N
Here power= 600 W
distance traveled=10 m
time=5 s
power is given by P= Work done/ time
600=work/5
so work= 60x5=3000J
now work done= force* distance
3000=F *10
F= 3000/10
F=300 N
 
        
             
        
        
        
Let us first calculate the average speed of David,
Av speed = Distance traveled/ Time taken
We have, distance = 70 miles
Time =  hours = 1.75 hours
 hours = 1.75 hours
Av speed = 
= 40 miles/hour
Another 120 miles will be traveled in time, t = 120/40 = 3 hours