if the flaps are fully retracted and theta is equal 0 that would mean the equation is equal to 0? is sin^2(theta) a trig identity? why am i get syntax error on calculator?
thanks, just what im looking for...
is sin theta the flap angle?
it says the change in drag coeffcient is equal to, so do i add this on to the original drag of the aerofoil?
Approximetly how much is the drag coefficient if orginally the coefficient is 0.02689. I know it depends on aircraft etc but im only looking a rough estimate.
i have produced a graph vertical against horizontal distance. However when the projectile angle is closest to angle of 0 it goes the furthest,what is the problem here. Is the horizontal speed for projectile with drag remain Vcos(theta)?
no it isnt, i woud like to plot the angle against displacement, how hard is that to do?
do i need to know the object mass and surface area (to work out Cd) to find it?
i used calculus to derive the equations knowing gravity and initial velocity and angle.
for drag:
I have calculated the horizontal and vertical distances but is there a way where i can combine these two and use theta in the equation to insert the projectile angle?
i am looking to find the projectile distance if an object (any object) was launched at 50 degrees considering the only information i know is u and v and theta (50)
can someone help me out on the formula i need in order to calculate the range?
yes it is a typo it is -263.2. I only need the magnitude do i not? just to find the amps in the neutral wire though and the magnitude is the same for each phase i get it to be 7.62A?
as far as i am aware it is now an unbalanced load meaning the current of R, Y and B is Ir+Ib+Ic???and im sure the impedance 3+7j is needed to work it out to.
both. i attached an ammeter to the neutral wire and i put an access wire from the input of the ac power suplly to the out R and i have got a reading, but i need to hand calculate it.
https://www.physicsforums.com/attachment [Broken]....
how do i measure the current flow threw the neutral wire if phase R is open circuited? the impedance per load is 3+7j
How do i plot an output response curve when input unit steps are (undamped natural frequency is normalised to 1):
damping ration = 0, 0.1, 0.4,0.6,0.8,0.9 1 and 2
1) how do i plot a 2d plot for all curves on same graph. Time scale 0 - 10, steps of 0.2 seconds.
2) How do i make use of a 'for...