Aforce f-( 6 x 10-3 n ) i̇-(4x 10-3 n) j-(8x 10.3 n) k is acting on a charge q -2x 10-9 c moving inside a uniform magnetic field with a velocity (2-106 m/s) i̇ + (3x 106 m/s) j. calculate the components of the magnetic field knowing that the x-component of the field is equal to zero.

Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct

Which governments provide garbage collection services to homes and businesses

(a) if the pressure in gas is doubled while its volume is held constant, by what factor do (i) vrms and (ii) change? (b) is it possible to boil water at room temperature (20oc) without heating it? explain.