What's the air temperature when Δd=250m

  • Thread starter Thread starter crystalspark
  • Start date Start date
  • Tags Tags
    Air Temperature
AI Thread Summary
To calculate the air temperature based on the echo from a cliff, the distance of 250 m is divided by 2 to find the one-way distance of 125 m. The speed of sound is determined using the time of 1.5 seconds, resulting in a calculated speed of 83.33 m/s. This speed is then set equal to the equation for the speed of sound, v = 331 m/s + (0.59 m/s/°C)T, to solve for temperature T. The discussion raises questions about the distance traveled by the sound wave and the reasoning behind using half the distance. Understanding these calculations is essential for determining the air temperature accurately.
crystalspark
Messages
4
Reaction score
0

Homework Statement



A hunter wanted to know the air temperature. The echo from a nearby cliff returned 1.5 s after he fired his riffle. If the cliff is 250 m away, how do you calculate the air temperature?

Homework Equations



v=331 m/s + (0.59 m/s/c˚)T niSinθi=nRSinθR x=Δd/2 These eq'ns might be useful

The Attempt at a Solution



x=250 m/2 = 125
v=125 m/1.5s = 83.33 m/s
83.33 m/s = 331 m/s + (0.59 m/s/c˚)T
 
Physics news on Phys.org
why you used x = 125??

what is the distance traveled by sound wave in the whole process?
 
Thread 'Voltmeter readings for this circuit with switches'

Thread 'Voltmeter readings for this circuit with switches'

TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
View full post »
Thread 'Correct statement about a reservoir with an outlet pipe'

Thread 'Correct statement about a reservoir with an outlet pipe'

The answer to this question is statements (ii) and (iv) are correct. (i) This is FALSE because the speed of water in the tap is greater than speed at the water surface (ii) I don't even understand this statement. What does the "seal" part have to do with water flowing out? Won't the water still flow out through the tap until the tank is empty whether the reservoir is sealed or not? (iii) In my opinion, this statement would be correct. Increasing the gravitational potential energy of the...
View full post »

Similar threads

Change in temperature of air in a closed system
Replies
16
Views
2K
Calculate Additional Time for Echo in Air to Return | Physics Problem
Replies
10
Views
5K
Solve Physics Echo Problem: Air Echo Returns 1.33s Later
Replies
3
Views
2K
Time it takes for light to travel 54 cm
Replies
9
Views
3K
How long would it take a sound wave to travel 150m
Replies
3
Views
3K
Calculate Distance of Lightning Strike with Temperature and Time | Homework Help
Replies
3
Views
3K
Thermal physics problem -- Pressure and temperature of air in a refrigerator
Replies
2
Views
4K
Calculating Echo Time for Sound in Water and Air
Replies
1
Views
3K
Solve for Echo Time in Saltwater and Air - Physics Problem
Replies
5
Views
2K
The mass of air in the pressurised air tank
Replies
31
Views
5K

Hot Threads

Recent Insights

Back
Top