Answer:
is the height of the TV screen.
Explanation:
Given:
diagonal of TV screen, 
width of TV scree, 
As we know that the TV screen is rectangular in shape so including its height and with along with the diagonal forms a right angled triangle in which the diagonal is the hypotenuse of the triangle formed so.


is the height of the TV screen.
<span>At the top of the waterfall, the water has potential energy. Once it goes over</span>
Answer:
Acceleration will be 
Explanation:
We have given initial speed of the car is 70 km/hr
We know that 1 km = 1000 m
And 1 hour = 3600 sec
So 
It is given that car stops in 12 sec
So final speed of the car v = 0 m/sec
Time t = 12 sec
From first equation of motion v = u+at
So 
( negative sign indicates that speed of the car will constantly decrease )
Answer:
energy that is stagnant and cannot be changed