Answer:
Part a)
Part b)
Explanation:
Part a)
As we know that the gas equation is given as
so here we know that
Now in order to find the final volume we have
Part b)
Work done in this process is given as
The quantity that measures how much a machine multiplies force is called mechanical advantage.
A! Good luck on your test!
Answer:
Req = 50 Ω
Explanation:
The equivalent resistance is basically the sum of all the resistances in a circuit.
The sum of these resistances will depend whether these resistance are in series or parallel.
If the resistances are on series, the expression to use is:
R = R₁ + R₂ + R₃ + .......Rₙ (1)
If the resistances are on parallel then the expression to use is:
1/R = 1/R₁ + 1/R₂ + ........1/Rₙ (2)
Now, according to the picture, we have R₁ and R₄ in series, so here we have to use (1):
R₁₄ = 10 + 30 = 40 Ω
R₂ and R₃ are in parallel so we use (2):
1/R₂₃ = 1/20 + 1/20 = 2/20 = 1/10
R₂₃ = 10 Ω
Finally, R₁₄ and R₂₃ are in series (Because of the sum of the resistance in each side, they are now forming one resistance in each side), therefore, we use (1) again to get the equivalent resistance of the whole circuit:
Req = 10 + 40
<h2>
Req = 50 Ω</h2>
Hope this helps
Answer:
R₂ = 3.31 m
Explanation:
For this exercise let's use trigonometry. Let's see the angle of the full moon
θ = x / R
Where x is the diameter of the moon and R the distance from the Earth to the Moon, the angle is measured in radians
x = 2 R
x = 2 1.74 10⁶
x = 3.48 10⁶ m
The distance is
R = 3.84 10⁸ m
Let's look for the supported angle
θ = 3.48 10⁶ / 3.84 10⁸
θ = 9.06 10⁻³ rad
For the coin to cover the moon it must have the same angle, let's look for the different
θ = x₂ / R₂
x₂ = 3 cm = 0.03 m
R₂ = x2 / θ
R₂ = 0.03 / 9.06 10⁻³
R₂ = 3.31 m
This distance in much greater than the arm length