What is called mass per unit volume of a substances? | ककसी पदाथष के

द्रव्यमान प्रतत इकाई आयतन को क्या कहते हैं?

A : Mass | द्रव्यमान

B : Weight | भार

C : Density | घनत्व

D : Volume | आयतन

Ans:
C : Density | घनत्व

Density

Explanation:

The definition of density of a substance is the quotient between its mass and its volume. Such results in the mass per unit of volume.

two charges are fixed in place on the x-axis as shown. the charge at x = 0 is negative and has magnitude q = 2 μcoulombs (1 μcoulomb = 10-6 coulombs). the charge at x = d, (d = +12 cm), is positive and has magnitude q = 4 μcoulombs. find a point x = xo along the x-axis at which the electric field is zero.

i dont know but

explanation:

whoever your teacher is, deserves a raise for using pokemon as an example