An environmentally-conscious student is breaking the rings from a six-pack drink holder before disposing of it. This reduces the
1 answer:
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Answer:
1.
2.
3.
4.
Explanation:
1. The frequency of rotation is given by:
Where:
ω: is the angular speed = 50 rotations (revolutions) in 25 s.
We need to convert the units of ω.
Now, the frequency is:
2. The frequency is:
We know:
5 laps = 5 revolutions
t: time = 450 s
3. The frequency of the pendulum is:
4. We have:
θ: number of revolutions = 48 rev
f = 12 Hz
t =?
The time can be calculated as follows:
I hope it helps you!
Answer:
number of moles = 27.34 moles
the temperature of gas after it undergoes the isobaric expansion = 605 K
Explanation:
Given that:
V = 0.25 m³
P = 250 kPa
T = 275 K
V₂ = 0.55 m³
P₂ = 760 kPa
a)
Using ideal gas equation ; PV = nRT
b) To calculate the temperature of gas after it undergoes the isobaric expansion; we have: