In a cathode ray tube, the electrons are produced: (a). By applying an electric field to y-plates
(b). Gamma rays
(c). From fluorescent material
(d). By heating a cathode

Carbon-14 is a radioactive element that undergoes beta decay. which force is responsible for allowing carbon-14 to become stable? electromagnetic gravitational weak nuclear strong nuclear

When a bicycle coasts uphill, it moves slower and slower as it climbs. why? a. its kinetic energy is transforming into heat energy. b. its potential energy is transforming into kinetic energy. c. its kinetic energy is transforming into potential energy and heat energy. d. its potential energy is transforming into kinetic energy and heat energy.

The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?