Answer:
(a)
(b)
Explanation:
<u>Given:</u>
- = The first temperature of air inside the tire =
- = The second temperature of air inside the tire =
- = The third temperature of air inside the tire =
- = The first volume of air inside the tire
- = The second volume of air inside the tire =
- = The third volume of air inside the tire =
- = The first pressure of air inside the tire =
<u>Assume:</u>
- = The second pressure of air inside the tire
- = The third pressure of air inside the tire
- n = number of moles of air
Since the amount pof air inside the tire remains the same, this means the number of moles of air in the tire will remain constant.
Using ideal gas equation, we have
Part (a):
Using the above equation for this part of compression in the air, we have
Hence, the pressure in the tire after the compression is .
Part (b):
Again using the equation for this part for the air, we have
Hence, the pressure in the tire after the car i driven at high speed is .
Frequency decreases whilst wavelength increases and the opposite also occurs
The combined momentum is 4000 kg m/s south
Explanation:
The total combined momentum of the two cars is given by the vector addition of the momenta of the two cars.
For this problem, we choose north as positive direction and south as negative direction.
The momentum of the first car travelling north is given by:
where
is the mass of the car
is its velocity
Substituting,
The momentum of the second car travelling south is given by:
where
is the mass of the car
is its velocity (negative because the car travels south)
Substituting,
And therefore, the combined momentum is
where the negative sign means the direction of the total momentum is south.
Learn more about momentum:
brainly.com/question/7973509
brainly.com/question/6573742
brainly.com/question/2370982
brainly.com/question/9484203
#LearnwithBrainly
Acceleration due to gravity.