A one-fiftieth scale model of a military airplane is tested at 1020 m/s in a wind tunnel at sea-level conditions. The model wing area is 180 cm2 . The angle of attack is 3 degrees. (a) List all relevant dimensionless numbers. (b) If the measured model lift is 860 N, what is the prototype lift

An object is dropped from a tower, 400 ft above the ground. the object's height above ground t seconds after the fall is s(t)equals400 minus 16 t squared. determine the velocity and acceleration of the object the moment it reaches the ground. the velocity of the object the moment it reaches the ground is nothing ft/s.

Which of the following are not typically included in the periodic table? a. atomic mass b. element symbol c. isotopes d. number of electrons

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?