Answer
given,
Speed of the Aircraft,v = 175 mi/h
1 mi/h = 0.44704 m/s
175 mi/h = 78.232 m/s
time, t = 2.5 s
a) average acceleration = ?
a = 31.29 m/s²
b) Distance traveled by the Pane
using equation of motion
v² = u² + 2 a s
78.232² = 0² + 2 x 31.29 x s
s = 97.79 m
Distance moved by the plane is equal to 97.79 m
<u>Air pressure has no effect at all in an ideal gas approximation. This is because pressure and density both contribute to sound velocity equally, and in an ideal gas the two effects cancel out, leaving only the effect of temperature. Sound usually travels more slowly with greater altitude, due to reduced temperature.</u>
Answer:
The fraction fraction of the final energy is stored in an initially uncharged capacitor after it has been charging for 3.0 time constants is
Explanation:
From the question we are told that
The time constant
The potential across the capacitor can be mathematically represented as
Where is the voltage of the capacitor when it is fully charged
So at
Generally energy stored in a capacitor is mathematically represented as
In this equation the energy stored is directly proportional to the the square of the potential across the capacitor
Now since capacitance is constant at
The energy stored can be evaluated at as
Hence the fraction of the energy stored in an initially uncharged capacitor is