During a neighborhood baseball game in a vacant lot, a particularly wild hit sends a 0.145 kg baseball crashing through the pane of a second-floor window in a nearby building. the ball strikes the glass at 14.9 m/s, shatters the glass as it passes through, and leaves the window at 10.3 m/s with no change of direction. what is the direction of the impulse that the glass imparts to the baseball?

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.

True or false graphs must include scales that increase by the same amount

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2