Answer:
a♦1 E_average = n E₀ / 2
, b) E_average= infinity
Explanation:
The energy values form an arithmetic series, whose sum is
S = n (a₁ + aₙ) / 2 = n (2a₁ + (n-1) r)/ 2
Where n is the number of terms, a₁ is the first term, aₙ the last term and r is the difference between two consecutive numbers in the series
r = 2E₀ - 0 = 2E₀
Therefore the sum is
S = n (0 + n E₀) / 2
S = n² E₀ / 2
The average value is
E_average = S / n
E_average = n E₀ / 2
b) the case of harmonic oscillation
We have two possibilities.
- if we take a finite number and terms gives the same previous value
- If we take an infinite number of fears the series gives infinity and the average is also infinite
E_average= infinity
in a hypotonic solution like distilled water, a red blood cell would burst, because inside the cell has a higher solute concentration than outside.
In a hypertonic solution, there is a higher solute concentration on the outside of the cell than on the inside, causing the cell to shrivel.
i hope this helps
The initial momentum of the car is
(mass) x (speed) = 20,000 kg-m/s
"Impulse" is (force exerted) x (time the force lasts)
and it's equal to the change in momentum.
(Force) x (10 sec) = 20,000 kg-m/s
Divide each side by (10 sec) and you have
Force = (20,000 kg-m/s) / (10 sec)
= 2,000 kg-m/s² = 2,000 Newtons
Answer:
I THINK it's A but I'm not completely sure
