the pressure of a fixed mass of gas at a temperature of 0 degree Celsius is doubled while the volume is halved . what will be the final temperature of a gas​

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.

Ireally need this answer sombody fast fast

In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.