A current of 2.0A is following through a wire when a 10 volts potential difference is applied across the wire. If the length of the wire is 1.0 meter and its cross sectional area is 2 - 10-7m2, what is the resistivity of the wire?

The extremely high temperatures needed to trigger nuclear fusion are proposed to be generated by laser irradiating a spherical pellet of deuterium and tritium fuel of diameter 1.8 mm. (a) determine the maximum fuel temperature that can be achieved by irradiating the pellet with 200 lasers, each producing a power of 550 w. the pellet has an absorptivity 0.3 and emissivity 0.8.

State one advantage and one disadvantage of using a plane mirrior as a driving mirrior

Apebble is thrown into a calm lake, ripples are formed from the center and move outward. the water particles in the lake travel in a circular pattern that moves up and down on the surface of a lake, and the energy travels a) diagonally. b) downward. c) horizontally. d) upward.