Why should people pay attention to scientists when making decisions? A)scientist are the smartest people B) Scientist make up facts that they wish true C) scientist use experiments to test their ideas D) scientist are always correct

C) scientist use experiments to test their ideas

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