Answer:
A)6.15 cm to the left of the lens
Explanation:
We can solve the problem by using the lens equation:

where
q is the distance of the image from the lens
f is the focal length
p is the distance of the object from the lens
In this problem, we have
 (the focal length is negative for a diverging lens)
 (the focal length is negative for a diverging lens)
 is the distance of the object from the lens
 is the distance of the object from the lens
Solvign the equation for q, we find


And the sign (negative) means the image is on the left of the lens, because it is a virtual image, so the correct answer is
A)6.15 cm to the left of the lens
 
        
             
        
        
        
The formula for the pendulum experiment is based on the assumption that the amplitude is small so that the angle is approximately equal to the Sine of the angle.
        
             
        
        
        
Answer:
ans 5 
Explanation:
hope it's help It seems to me
 
        
             
        
        
        
Wind speed and air temperature are used to calculate a windchill factor.
<u>Explanation:</u>
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Wind-chill factor is the reduction of body temperature due to the passing flow of lower-temperature air. 
The air temperature  value is always higher than the wind chill numbers. the heat index will be used if the apparent temperature is higher than the air temperature.So, Wind speed and air temperature are mainly used to calculate a windchill factor.
 There are many ways, the surface loses its heat through conduction, evaporation,radiation, and convection.The rate of convection depends on  the difference in temperature between the surface and the fluid surrounding the surface and the velocity of that fluid with respect to the surface. The air around the warm surface will be heated, an insulating  layer of warm air forms against the surface.The layer becomes a boundary between two. As the wind speed is high the surface cools down rapidly.
 
        
                    
             
        
        
        
Answer:
to prevent cuz now for my mind when you prevent it it will not happen to you or nothing happened to you