Why are beta particles able to penetrate objects better than alpha particles are?
because beta particles are larger than alpha partides
because beta particles are smaller than alpha particles
because beta particles are negatively charged, while alpha particles are
neutral
because beta particles travel in a straignt line, while alpha particles travel
in waves
released

wire in brush may conduct electricity from cell to drill and vice versa electrc shock possible

i don't know that i agree with that but what's the question ?

when a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3 a. what is the resistance of the device?

a. 27 ω

b. 40.5 a

c. 243 ω

d. 243 a

the correct answer is a. 27

im guessing the west of station b