One way in which elements differ from each other is the structure of the electron cloud in each element’s atoms. In an electron
2 answers:
You might be interested in
<h2>Hello there! :)</h2>
It's a pleasure to be helping you today with your<u> physics question!</u>
Answer:
Explanation:
We want to find the initial speed of the ball.
To do this, we have to apply the formula for the time of flight of a projectile:
where θ = angle of flight
g = acceleration due to gravity
v0 = initial speed
Therefore, substituting the given values into the formula, we have that:
⇒ 2 × ×0.8910= 9.8 × 4.2
⇒
That is the initial speed of the ball.
<em />
<em>I hope this helps you!</em>
<em>Good Luck with your Assignment!</em>