by the wind and air flow in the wind
Answer:
1.71
Explanation:
the parabolic movment is described by the following equation:

where y is the height of the ball, a is the angle of launch,
the initial velocity, g the gravity and x is the horizontal distance of the ball.
So, if we want that the ball reach the hood, we will replace values on the equation as:

Finally, solving for
, we get:

1.71
Answer:
We use X-rays to help the injured, Radiowaves to communicate or entertain, and Visible light to see.
They lack a cell nucleus.