What is the dimensional formulae of "Mass per unit Area"?

Answer&Explanation:

Since dimensional formula is the way of expressing physical quantity in terms of it's dimension;

Mass per unit area will be,,

Mass=M

Area=L×L=L²

Therefore dimensional formula is=ML^-2 and not M/L²

c. 7/3

step-by-step explanation:

a rational number is like pi- it is a repeating decimal.

a. is -1.8

b. 2.236068

c. 2.3333333333333333333

d.   is 3

i hope that ! =)

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