Answer:
2) τ = F x torque increases, 3) troque decreases,
4) man approaches the pivot and the child must move away
5) Σ τ = 0
Explanation:
2) when the man moves away from the pivot his torque increases significantly, since his distance increases
τ = F x
τ = m g x
therefore the system rotates faster
3) when the child approaches the pivot, his troque decreases, because the distance decreases
τ = f x
therefore the system must spin slower
4) If we place the man and the child on the side of a scale, the movement must be the man approaches the pivot and the child must move away, so that the torque is the same and the system can reach a balance
5) the rotational equilibrium expression
Σ τ = 0
is the one that describes the equilibrium of a system with several forces
Answer:
Explanation:
The Sun won't explode. ... Eventually (in five or seven billion years time), the Sun's life will come to an end. Our star will swell up, becoming something called a “Red Giant” star. It might even get so big that it swallows the Earth whole.
Answer:
The distance from the positive plate at which the two pass each other is 0.0023 cm.
Explanation:
We need to find the acceleration of each particle first. Let's use the electric force equation.
<u>For the proton</u>
<u>For the electron</u>
Now we know that the plate separation is 4.26 cm or 0.0426 m. The travel distance of the proton plus the travel distance of the electron is 0.0426 m.
Both of them have an initial speed equal to zero. So we have:
With this time we can find the distance from the positive plate (x(p)).
Therefore, the distance from the positive plate at which the two pass each other is 0.0023 cm.
I hope it helps you!
This reaction would be classified as a double displacement or replacement reaction. This is because the atoms/groups of atoms within each compound are swapped or have broken bonds and reformed with other atoms/groups, where each of them has been replaced with their counter metal or nonmetal in the equation.
"Watch" . . . atmospheric conditions exist that could
produce tornados, but none have been seen yet.
"Warning" . . . tornados have formed and have been seen.
