A 2.8 kg block on a frictionless tabletop is attached by a string to a hanging block of mass 2.8 kg. (A) Draw a FBD of m1 and m2 (B) Find the acceleration of the masses (C) Find the tension in the string (D) Find the
tension in the string if the table had a coefficient of kinetic friction of .3

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.

Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car

An alien spaceship is 500 m above the ground and moving at a constant velocity of 150 m/s upwards. how high above the ground is the ship after 5 seconds?