The height of the ball is 2.45 m.
To calculate the height of the ball, we use the formula below.
<h3>Formula</h3>
- E = mgh................ Equation 1
Where:
- E = Elastic energy of the spring
- m = mass of the ball
- h = height of the ball
- g = acceleration due to gravity.
make h the subject of the equation
- h = E/mg...............Equation 2
From the question,
Given:
- E = 7.2 J
- m = 0.3 kg
- g = 9.8 m/s²
Substitute these values into equation 2
- h = 7.2/(0.3×9.8)
- h = 7.2/2.94
- h = 2.45 m
Hence, The height of the ball is 2.45 m.
Learn more about height here: brainly.com/question/1739912
Answer:
A. 159 hertz
Explanation:
To find the frequency of a wave you have to divide the velocity (speed) by the wavelngth.
342 divided by 2.15 is 159.
Loud sound waves have greater __________ and carry more energy than soft ones. *
>><span>amplitude</span>
Answer:
The distance r is
Explanation:
Given that,
Origin
Position of proton
Here, r is the distance from origin to the location of the proton
We need to calculate the distance
Using formula of distance
Where, r₁= origin
r₂ = position of proton
Put the value into the formula
Hence, The distance is