An electron moving with a speed of 4.3 x 105 m/s inthe positive x direction experiences zero magnetic force. When itmoves in the positive y direction, it experiences a force of 2.1 x10-13 N that points in the negative z direction. Find the components of the magnetic field (Bx, By, Bz)

Ablock of steel has a density of 0.29lbs per cubic inch. if the block has dimensions of 1 inch by 1 inch by 3 inches, what is its weight? a. 0.29lbs b. 0.58lbs c. 0.87lbs d. 1lbs

Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.

Describe cytokinesis in plants and animals. in animals: in plants.