Answer:
3rd picture straight line going up right
Explanation:
3rd picture
 
        
             
        
        
        
Answer:

Explanation:
sin^2 60° = ( \|3 / 2 ) ^2 = 3 / 4.
 
        
             
        
        
        
Answer:
Increase in the temperature of water would be 0.9 degree C
Explanation:
As we know by energy conservation
Change in the gravitational potential energy of the cylinder = increase in the thermal energy of the water
Here we know that the gravitational potential energy of the cylinder is given as

here we have
h = 300 m
now we can say

now if the cylinder falls from height h = 100 m
then we have

now from above two equations


 
        
             
        
        
        
A. true because your brain can't tell your moving inless you look out side and it defentily can't tell if it is a smooth ride
you welcome : )
-jv