A cannon shoots a cannonball with speed 42m/s at angle 30° to the horizontal from a 50 meter height castle. What is maximum horizontal distance the ball travels, in meters? Neglect air resistance, g= 9.8m/s2

Which statement best describes copper? a. it has a low resistance and prevents charges from moving freely. b it has a high resistance and allows charges to move freely. c. it has a high resistance and prevents charges from moving freely. d. it has a low resistance and allows charges to move freely

Which articulations allow for greatest range of motion?

A980-kg sports car collides into the rear end of a 2300-kg suv stopped at a red light. the bumpers lock, the brakes are locked, and the two cars skid forward 2.6m before stopping. the police officer, estimating the coefficient of kinetic friction between tires and road to be 0.80, calculates the speed of the sports car at impact. what was that speed?