Which statement best describes science?
O
A. Science cannot answer questions about the natural world.
O
B. Science cannot answer questions about what people should do.
C. Science can answer only mathematical questions.
O
D. Science can answer any and all questions.
SUBMIT

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

r = ρ x length / area  

ρ = r x area / length  

ρ is in ohm-meters  

in basic units, it is m³kg/s³a²  

i think this is it.