Avariable force of 4xâ2 pounds moves an object along a straight line when it is x feet from the origin. calculate the work done in moving the object from x = 1 ft to x = 12 ft. (round your answer to two decimal places.) 3.67 correct: your answer is correct. ft-lb

The cerebellum controls? thirst sensations sleep-wake cycles hand-eye coordination heart rate and pulse

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.

The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?