Answer:
To obtain the power, we first need to find the work made by the force.
1) To calculate the work, we need the next equation:
So the force is given by the problem so our mission is to find 'dx' in terms of 't'
2) we know that:
So we have:
Then:
3) Finally, we replace everything:
After some calculation, we have as a result that the work is:
161.9638 J.
4) To calculate the power we need the next equation:
So
P = 161.9638/4.7 = 34.46 W
Answer:
B. A car sits at rest at a stop sign.
<span>both the speed of the wave and the wavelength
- The frequency does not change, but the speed does. If that is true, then the wavelength must also change.</span>
Answer:
- Energy increases
Explanation:
From the question we are told that
Work done 
a)Generally the heat flow for an adiabatic process is 0 (zero)
b)Generally Change in internal energy of gas is mathematically given by
Since 
Therefore
Giving
c)With increases in internal energy brings increase in temperature
Therefore
Energy increases
Frequency = (speed) / (wavelength) = 20 / 0.5 = 40 per second = 40 Hz.
