Hardness is a measure of how resistant solid matter is to various kinds of permanent shape change when a force is applied Macroscopic hardness is generally characterized by strong intermolecular bonds, but the behavior of solid materials under force is complex; therefore, there are different measurements of hardness: scratch hardness, indentation hardness, and rebound hardness. Hardness is dependent on ductility, elastic stiffness, plasticity, strain, strength, toughness, viscoelasticity, and viscosity. Common examples of hard matter are ceramics, concrete, certain metals, and super hard materials, which can be contrasted with soft matter.

3 0

3 years ago

Tuberculosis (TB) is a bacterial infection that has both an active phase and a latent phase. In the active phase, TB affects the

Alex17521 [72]

I think it is the 2nd.

6 0

3 years ago

What happens when a atom loses an electron

Alex Ar [27]

It has a charge shift, which basically means, since there are 2 charges, that it'll filp it's charge:

- If the atom had a positive charge, it'll become negative

- If the atom had a negative charge, it'll become positive

Hope it helped,

BioTeacher101

7 0

3 years ago

What are plains (structure of earth)​

What are plains (structure of earth)