Potential energy is simply energy that can be but isn't yet
it can also be changed by putting it into motion or setting it off by using force or enacting gravity by dropping it.
Answer: 5Hz
Explanation: Frequency = Wave speed divided by wavelength.
Soo many energies like water air
Answer: v = 6.0 m/s
Explanation:
T = m(v²/R - g)
(T/m + g)R = v²
v = √((79.0/0.98 + 9.81)0.40) = 6.0140... ≈ 6.0 m/s
Hi!
The answer would be 22.5m
<h3>Explanation</h3>
To calculate the distance the ball travels, you would need to apply the following formula from the equations of motion for an accelerating object:
2as = v^2 - u^2
Where a is acceleration due to gravity, 9.8m/s^2
s is the distance traveled by the object (height of ball in this case)
v is the final velocity, which we know will be zero at the point where the ball reaches maximum height.
u is the initial velocity, which is known to us as 21m/s
Rearranging the equation to solve for the height:
s = (v^2 - u^2 ) / 2a
s = ( 0^2 - 21^2 ) / 2(-9.8)
s = - 441/ - 19.6
s = 22.5m
<em>Note: since gravity is acting against the object's motion, it will be negative </em>
<em>Hope this helps!</em>
