Archive for the ‘Physics’ Category

 

Why is it that a subsonic aircraft cannot produce a sonic boom?

Friday, February 26th, 2010
aircraft
Carling asked:


Midterm question: Why is it that a subsonic aircraft, no matter how loud it may be, cannot produce a sonic boom?

 

What can we do basic research on to solve the Sonic Barrier for aircraft?

Thursday, February 4th, 2010
aircraft
Lantern asked:


The sonic barrier has stifled new aircraft design for 50 years now. Something is making that plane go boom at around 600 mph.

 

0 Gravity in an Aircraft flying straight and level or well Sort offf?

Saturday, January 9th, 2010
aircraft
Ashish asked:


If an aircraft is flying straight and level with the maximum payload in weight.The weight consists of live birds, while in flight if all the birds start to fly in the aircraft what would happen.

 

What is the new speed and direction of the aircraft relative to the ground?

Saturday, January 2nd, 2010
aircraft
chrissymm99 asked:


A jet airliner, moving initially at 290 mi/h to the east, suddenly enters a region where the wind is blowing at 80 mi/h toward the direction 30.0° north of east. What is the new speed and direction of the aircraft relative to the ground?

?mph
?degrees
south of east?
north of west?
north of east?
south of west?

 

Why when I see commercial aircraft in the sky are they ahead of their sound?

Wednesday, December 23rd, 2009
aircraft
jebsonflynn asked:


I know that commercial flights are not allowed fly at super-sonic speeds. If the sound is a few second behind the aircraft, hasn’t that plane broken the sound barrier?

 

A member of an aircraft maintenance crew wears protective earplugs that reduce the sound intensity by a factor?

Friday, December 18th, 2009
aircraft
Stephen asked:


A member of an aircraft maintenance crew wears protective earplugs that reduce the sound intensity by a factor of 440. When a jet aircraft is taking off, the sound intensity level experienced by the crew member is 87 dB. What would the sound intensity level be if the crew member removed the protective earplugs?

 

What is the new velocity of the aircraft relative to the ground?

Friday, November 6th, 2009
aircraft
starberries asked:


A jet airliner moving initially at 300 mi/h due east enters a region where the wind is blowing at 115 mi/h in a direction 30.0° north of east. What is the new velocity of the aircraft relative to the ground?

 

How can I determine the altitude of an aircraft from my position?

Wednesday, November 4th, 2009
aircraft
aegean asked:


Hello everyone!
Unfortunately I’m not such a big fan of math and trigonometry so I need your help with this problem:let’s say that I’m out in the field and I observe an aircraft flying.All I know is the angle of the aircraft above the horizon and the distance between my position and the ground position corresponding to the aircraft.How can I determine the height and distance to the aircraft?
Thank you in advance for your help!

 

What is the new velocity of the aircraft relative to the ground?

Wednesday, September 23rd, 2009
aircraft
Foxychick asked:


A jet airliner moving initially at 300 mi/h due east enters a region where the wind is blowing at 105 mi/h in a direction 28.0° north of east. What is the new velocity of the aircraft relative to the ground?

( mi/h ) & ( ° north of east)

 

How does a missle place a lock on an aircraft?

Saturday, September 19th, 2009
aircraft
Krishna asked:


If it is the heat source, how does the missle know which heat source to go after if there are 3-4 fighter aircraft flying together?

Also, how does the aircraft realise that a missle has a lock on it?