Which statement describes the formation of a nebula? a. an elliptical flattened disk begins. b. a bulging core with irregular stars around it forms. c. a large flattened core at the center contracts. d. gases from a dead star gather and contract.

Abatter hits the baseball a with an initial velocity of v0 = 110 ft/sec directly toward fielder b at an angle of 23° to the horizontal; the initial position of the ball is 2.2 ft above ground level. fielder b requires 0.44 sec to judge where the ball should be caught and begins moving to that position with constant speed. because of great experience, fielder b chooses his running speed so that he arrives at the “catch position” simultaneously with the baseball. the catch position is the field location at which the ball altitude is 8.4 ft. determine the velocity of the ball relative to the fielder at the instant the catch is made.

How would a small bar magnet be oriented when placed at position x?

Select the correct answer. what does the process of natural selection involve?