how long will it take to pass a current of 0.5A in conductor, if a charge of 0.8c flow through the conductor

1.6 seconds

i hope it helps you

force is mass*acceleration.

we have a very small mass: 11.4*0.001 kg

if we want 0.035n of force, we need an acceleration:

0.035 = 11.4*0.001*a

a = 0.035/(11.4*0.001) m/s^2

d. platinum would have the greatest temperature increase because it has the lowest specific heat.