A wave sent out from a source is reflected back in 1x10 -3 sec. If the velocity of the wave
is 3x 10²m/s what is the distance of the reflecting
Surface from the source​

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

The ratio of lift to drag l/d for a wing or airfoil is an important aerodynamic parameter, indeed, it is a direct measure of the aerodynamic efficiency of the wing. if a wing is pitched through a range of angle of attack, l/d first increases, then goes through a maximum, and then decreases. consider an infinite wing with an naca 2412 airfoil. estimate the maximum value of l/d. assume that the reynolds number is 9x10^6.

How many meters will a car travel if its speed is 45 m/s in an interval of 11 seconds? question 2 options: a) 450 meters b) 495 meters c) 4.09 meters d) 498 meters