Re: Facebook: See if someone is online but not your friend. You can't see if someone is online or not if they arent in your friends list. and even if the account is private you should still be able to send a friend-request or a message. If you think she is cheating on you, you have more than just a facebook problem ..
A â 0.22 (meters per beat) U â 3*15*0.22 â 9.9. ... to estimate that the airspeed velocity of an unladen European Swallow is 10 meters per second. With some further study, it became clear that these estimates are accurate, though perhaps coincidental.
Letâs start with what an unladen swallow is. The simple answer, itâs a bird. The more complicated answer is that itâs a bird with 74 distinct species of swallow. Some found in Africa, others in Europe. What is air speed velocity? Itâs the relative velocity between some object, in this case the swallow, and the air. In order to calculate the airspeed you have to take the difference between ground speed and the wind speed. Ground speed is the speed in which an object moves relative to some reference point on the ground.