A33 kg gun is standing on a frictionless surface. the gun fires a 57.7g bullet with a muzzle velocity of 325m/s. the positive direction is that of the bullet.
calculate the kinetic energy of thebullet immediately after the gun was fired. answer in units of j

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

The image shows the positions of a car on a roller coaster track. arrange the cars in order based on their gravitational potential energy. begin with the lowest potential energy and end with the highest.

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.