Apoint charge 2 pc is concentric with two spherical conducting thick shells. the smaller spherical conducting shell has a net charge of −27 pc , radii 2.6 cm and 4.7 cm , inner surface charge q ′ 2 and outer surface charge q ′′ 2 . the larger spherical conducting shell has a net charge of 14 pc , radii 6.1 cm and 7.4 cm , inner surface charge q ′ 3 and outer surface charge q ′′ 3 . what is the charge on the inner surface of the smaller spherical conducting shell, 2.6 cm from the 2 pc point charge? under static conditions, the charge on a conductor resides on the surface of the conductor. answer in units of pc.

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.

What is the magnitude of the resultant vector round your answer to the nearest tenth

Which best represents the law of conservation of mass ?