Two long conducting cylindrical shells are coaxial and have radii of 20 mm and 80 mm. The electric potential of the inner conductor, with respect to the outer conductor, is 600 V. a. An electron is released from rest at the surface of the outer conductor. The speed of the electron as it reaches the inner conductor is closest to?
b. The maximum electric field magnitude between the cylinders is closest to:

According to social exchange theory, altruistic behaviors benefit the individual who performs them.

Boxing gloves are padded to lessen the force of a blow. (a) calculate the force exerted by a boxing glove on an opponent’s face, if the glove and face compress 7.50 cm during a blow in which the 7.00-kg arm and glove are brought to rest from an initial speed of 10.0 m/s. (b) calculate the force exerted by an identical blow in the gory old days when no gloves were used and the knuckles and face would compress only 2.00 cm. (c) discuss the magnitude of the force with glove on. does it seem high enough to cause damage even though it is lower than the force with no glove?

The ability to make things happen is also called a. heat b. force c. matter d. energy