Saturday, December 17, 2011

How do you convert State plane coordinates into other formats?

I have this (and other) state plane coordinates I need to mark on a map!





Its in Rensselaer county , NY State.





N 303,026.220 E 205,684.182 Datum = NAD27





Any idea how I can do this? It only has to be within 10m square!|||If you are using a mapping software like ArcView, you can calulate the coordinates. If you do not have a mapping software then download the free program Corpscon and it will do it for you.

Thursday, December 15, 2011

How can I prevent getting greasy hair on plane flights?

I'm going overseas to the Philippines and for 20-24 hours I will either be on a plane or at an airport.


My hair gets REALLY greasy/oily from being on 3 planes. I don't even put anything in my hair after showering beforehand :( How can I cope with this? What's a good dry shampoo that I can bring? Will it get confiscated? Any tips?|||Try baby powder. Works better for me than any dry shampoo I have tried. Put some in and comb it through. Also, avoid touching it, that makes grease worse, obviously. I'm not sure if they will let you bring dry shampoo, I guess since it's not liquid. Safe flight!|||Foot powder. No lie. Put it inyour roots and it makes it look way less greasy. They have specifics powders for your hair but it's the SAME EXACT THiNG but CHEAPER!|||If I were you...I'll wear a hat or take a shower at the airport...|||sand

What's the easiest and fastest way to get a donated plane ticket for the United Way Fundraiser?

I have until Sep.21st and I need to know the best way to get a donated plane ticket. I have the paperwork ready to go.|||Contact the sales department (not reservations) of a couple of different airlines in your area. I'm sure you'll have no trouble getting an airline to donate a ticket if it is for a fundraiser for a charity like the United Way.

At what height must the plane start a quarter turn to pull out of the dive?

A jet is diving vertically downward at 1390 km/h. If the pilot can stand a maximum acceleration of 5g (i.e., five times the acceleration of gravity on Earth's surface) before losing consciousness, at what height must the plane start a quarter turn to pull out of the dive? Assume the speed remains constant.|||If the jet's speed remains 1390 km/hr, and the pilot pulls up in a circular arc, the acceleration the pilot feels is





TotalAccel = g + a





where g is gravity and a is the angular acceleration caused by the turn.





Solving for a, we find the radius of the turn





5*g = g + a


4*g = a


4*g = v^2 / R


4*(9.81 m/s^2) = (386.1 m/s)^2 / R


(39.23 m/s^2) = (149100 m^2/s^2) / R


R = (149100 m^2/s^2) / (39.23 m/s^2)


R = 3800 m





So, the pilot must start pulling out of the dive at least 3800 meters (3.8 kilometers) above the ground to avoid both blacking out and colliding with the ground..|||Let's assume that pilot is trying to make shortes possible quarter turn. He should do it by moving on a circle with minimal possible radius. When plane is moving by circle everything in the plane experiences centripetal acceleration v^2/R. According to your problem statement this value should be no more than 5g, so v^2/R%26lt;5g, R%26gt;v^2/5g. Convert your speed to m/s by dividing 1390/3.6. The resut is in meters.





This solution is good for person who just started studying circular motion.


There are additional factors to consider. Acceleration 5g that the pilot experiences at the bottom of the loop means that one g is provided by gravity and 4g is centripetal acceleration, so in fact the radius at the bottom of the loop should be larger, so that v^2/R%26lt;4g, R%26gt;v^2/4g.





I do not know your level so I can not say for sure which answer your textbook would prefer:)





For AP Physics BC course you could take into consideration that the radius can vary from R%26gt;v^2/5g at the beginning of the turn to R%26gt;v^2/4g at the end of it.

How far radius can I control average rc plane? If the plane is out of range what happens?

How about 90 degrees up? I mean if the plane is flying too high in the sky and goes out of range and then when it falls down into the range again, am I able to control it again before it hits ground?|||You will lose sight of the airplane before you lose control. Range is usually en excess of 2 miles.





If you lose sight overhead, it will drift to the side with the prevailing wind, and you probably will not see where it goes. If you actually get one out of range, and it comes back, like that's ever going to happen, you will regain control.|||Lets just put it this way the range of the radio is way farther than you can see the plane You would have problem with knowing what it is doing before the radio will give you trouble

How do you make a plane shap rigid?

A plane(flat) shape. How do you know what the least amount of supports to apply on the inside vertices of the shape?|||the trick is to make triangles.


for a rectangle - draw either diagonal


for any polygon, pick 1 vertex and draw all diagonals from it.


the number of diagonal braces should be 2 less than the number of sides

Can somebody find the JetBlue welcome/safety video that is viewed when you board the plane?

Can somebody find the JetBlue welcome/safety video that is viewed when you board the plane?





The one that you watch before the plane takes off. It talks about jetBlue and then explains various safety procesdures and rules.





If somebody could find me a link for it that would be great.Thanks|||http://www.youtube.com/watch?v=Ie8Y0bz3o鈥?/a>