Relationship between elastic shear stress and shear strain is a) young's modulus b) poissons ratio c) saint-venant's principle d) modulus of rigidity e) none of these

Option D is the correct answer.

Explanation:

Young's modulus is the ratio of tensile stress and tensile strain.

Bulk modulus is the ratio of pressure and volume strain.

Rigidity modulus is the ratio of shear stress and shear strain.

Here we are asked about relationship between elastic shear stress and shear strain. We have rigidity modulus is the ratio of shear stress and shear strain.

Option D is the correct answer.

weather forecasts are done by collecting data about the current state of the atmosphere mainly the temperature, humidity and wind and using meteorology, to determine the atmosphere that evolves over time. the h and l mean the high and low pressure. the red strip is a warm front. the blue strip is a cold front. the blue and red strip is a stationary front. the purple strip is a occluded front.

explanation:

if the thermos has a vacuum innner, then heat through conv currents and conduction are reduced = vacuum flask