Answer:
This happens in two ways. If an object is at rest and an unbalanced force pushes or pulls the object, it will move. Unbalanced forces can also change the speed or direction of an object that is already in motion.
Explanation:
C. the number of protons in every atom. I hope this helped. :) Brainliest answer please? :)
Answer:
Explanation:
No matter the coeficient of the cosine function, the function will always be zero as long as the following is true:
Now:
Rewrite 3.4 as:
So:
Therefore the particle crosses the x-axis (x(t)=0) :
The first time is when n=1, so:
And the second time is when n=2, so:
If there is less water in the bottle then the note played is lower, because there is more air to move around. This is one good hypothesis that could lead to a new experiment.
Hope that helps! ★<span> If you have
further questions about this question or need more help, feel free to comment
below or post another question and send the link to me. -UnicornFudge aka Qamar</span>
Answer:
F = 30 N Directed up
Explanation:
We can solve this problem using the momentum and momentum relationship.
I = ΔP
I = ∫ F dt
As we are asked for the average force, that leaves the integral, giving
I = F t
F t = m - m v₀
F = m (-v₀) / t
Note that, if you define the upward positive direction, the initial velocity is negative
Let's calculate
F = 0.15 (3.5 - (-6.5)) / 0.050
F = 30 N
Directed up