PLEASE ANSWER I HAVE AN EXAM : The Current, I Ampere flowing through wire is inversely proportional to resistance, R Ohms. Given that current of 12 Ampere has resistance of 0.5 Ohms, find: i-The resistance when current is 3 Amperes.
ii-Relation between current and resistance
iii-The current when resistance is 3 Ohms.​​

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?

8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm

Imagine a small synthetic vesicle made from pure phospholipids enclosing an interior lumen containing 1 mm glucose and 1 mm sodium chloride. if the vesicle is placed in pure water, which of the following happens faster? a. na+ diffuses out. b. cl– diffuses out. c. h2o diffuses in. d. glucose diffuses out. e. sodium chloride diffuses out.