Answer:
π/10 rads
Explanation:
It takes an hour (60 minutes) for the minute's hand to turn a full circle or achieve an angular rotation of 
2πl rad. 
Now, number of periods of 3 minutes in an hour is;
Number of periods = 60/3 = 20 periods
Thus, 3 minutes rotation accounts for 1/20 of 2π the rotation of the minute's hand in an hour.
Thus;
Angular displacement = (1/20) * 2π = π/10 rads
 
        
             
        
        
        
According to Newton laws of motion, 
F = m*a
Here, m = 1,560 Kg
a = 1.30 m/s²
Substitute their values, 
F = 1,560 * 1.30
F = 2028 N ~ 2030 N  [ Closest value ]
In short, Your Answer would be Option C
Hope this helps!
 
        
             
        
        
        
the wavelength equation is 
speed (of light in this
case)= wavelength (m) x frequency 
3x10^8m/s / .07m = f 
frequency= 4 285 714 286
hertz 
 
 
 
b) Total distance= 4.8 km
(4,800 m) 
Speed = 3x10^8 m/s 
d=st 
t= d/s 
t= 4,800 m/3x10^8m/s 
<span>t= 1x10^-5 seconds</span>
 
        
                    
             
        
        
        
When you punch holes in opposite corners of a milk carton filled with water which is hanging from a string, water will start to flow outside with a certain force. There will be a reaction equal and opposite to this force that will make the milk carton start to spin.
This is a typical example of water turbine that is used to demonstrate the third Newton's law.