Answer:
v = 0.525 /√r
Explanation:
For this problem we must use Newton's second law where force is electric given by Coulomb's law.
F = m a
k q₁ q₂ / x² = m dv / dt
Where index 1 we will use it for the proton and index 2 for the alpha particle
k / m q₁q₂ / x₂ = dv/dx dx/dt = dv/dx v
(k / m q₁q₂) dx / x² = v dv
We integrate
(k / m q₁q₂) (-1 / x) = v² / 2
We evaluate between the lower limit x = r and v = 0 to the upper limit x = 2r
(k / mq₁q₂) (-1 / 2r + 1 / r) = ½ (v²-0)
v² = 2k/m q₁q₂ (1 / 2r)
q₁ = e
q₂ = 2e
v² = k 2e² /m 1 /r
v² = 2k e²/m 1 /r
Let's replace the values
v² = 2 8.99 10⁹ (1.6 10⁻¹⁹)² /1.67 10⁻²⁷ 1 / r
v = √( 27.562 10⁻² 1 / r)
v = 5.25 10⁻¹ 1 / √r
v = 0.525 /√r
Answer:
earth strong gravity
Explanation:
The only planet that have water bodies is earth. We know that water is one of the important factors for all living organism. Liquid water exists on the earth's surface is due to the atmospheric pressure. The reason behind this is not completely mentioned.
There are so many hypothesis about it. Out of given options the correct option is earth's strong gravity.
Hence, the correct option is (b) " earth strong gravity ".
Answer:
ill go with B
Explanation:
inertia is the ability of a body to remain at rest or in a constant speed in a constant direction when no force is acting on it
Answer: I am pretty sure that you should pick radio waves.
Explanation: The scientist should use radio waves. I think this because you can use the radio waves to analyze the signals from outer space. This will work much better than anything there, to analyze it the best possible.
The best I could do.
To answer your question, no,
temperature does not always increase as it is heated. Adding heat does not always increase the temp.
For example, when water is boiling, adding heat does not increase the temperature. This occurs at the boiling temp of every substance that can vaporize.
Hope this explanation was helpful and brief! :)