A22.0-kg body is moving in the direction of the positive x axis with a speed of 202 m/s when, owing to an internal explosion, it breaks into three pieces. one part, whose mass is 9.5 kg, moves away from the point of explosion with a speed of 314 m/s along the positive y axis. a second fragment, whose mass is 4.5 kg, moves away from the point of explosion with a speed of 422 m/s along the negative x axis. what is the speed of the third fragment? ignore effects due to gravity.

Consider an ordinary, helium-filled party balloon with a volume of 2.2 ft3. the lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon. using this fact, we can derive archimedes’ principle, namely that the upward force on the balloon is equal to the weight of the air displaced by the balloon. assuming that the balloon is at sea level, where the air density is 0.002377 slug/ft3, calculate the maximum weight that can be lifted by the balloon. note: the molecular weight of air is 28.8 and that of helium is 4.

The electronic structure or chlorine is 2.8.7 what is the electronic structure of fluorine?

At a certain instant after jumping from the airplane a, a skydiver b is in the position shown and has reached a terminal (constant) speed vb = 52 m/s. the airplane has the same constant speed va = 52 m/s, and after a period of level flight is just beginning to follow the circular path shown of radius ρa = 2330 m. (a) determine the velocity and acceleration of the airplane relative to the skydiver. (b) determine the time rate of change of the speed vr of the airplane and the radius of curvature ρr of its path, both as observed by the nonrotating skydiver.