Apositively charged particle of mass 6.20 10-8 kg is traveling due east with a speed of 75 m/s and enters a 0.47-t uniform magnetic field. the particle moves through one-quarter of a circle in a time of 6.40 10-3 s, at which time it leaves the field heading due south. all during the motion the particle moves perpendicular to the magnetic field.(a) what is the magnitude of the magnetic force on the particle? (b) what is the charge on the particle?

According to the law of conservation of mass, in a chemical reaction the total starting mass of all the reactants equal the total final mass of all the products. true or false?

Scout feels ill one day before school. her mother puts a thermometer in her mouth and the temperature begins to climb to 100°f. what is happening between the cooler thermometer and scout's body? a) scout's body is applying a force to the particles in the thermometer. b) kinetic energy is being transferred from her mouth to the thermometer. c) potential energy is being lost by the thermometer and gained by scout's body. d) the potential energy stored in foods is converted to mechanical energy to raise the mercury in the thermometer.

Carbon 14 is a naturally occurring stable