A Prismatic Bar (Diameter $d _ { 2 } = 25 \mathrm {~mm}$

question 16

Multiple Choice

A prismatic bar (diameter $\text { (diameter } d _ { 0 } = 18 \mathrm {~mm} \text { ) is loaded by force } P _ { 1 } \text {. A stepped bar (diameters } d _ { 1 } = 20 \mathrm {~mm} \text { and }$ $d _ { 2 } = 25 \mathrm {~mm}$ with radius of fillets $R = 2 \mathrm {~mm}$ ) is loaded by force $P _ { 2 }$ . The allowable axial stress in the material is $75 \mathrm { MPa }$ . The ratio $P _ { 1 } / P _ { 2 }$ of the maximum permissible loads that can be applied to the bars, considering stress concentration effects in the stepped bar, is:

• A) 0.9
• B) 1.2
• C) 1.4
• D) 2.1

Identify the evolutionary explanations for differences in male and female behaviors.

Understand the evolutionary basis for human emotions like jealousy and promiscuity.

Evaluate the criticisms and limitations of evolutionary psychology.

Apply evolutionary psychology to understand relationship dynamics.

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Definitions:

Photosynthesis

The process by which green plants, algae, and certain bacteria convert light energy, usually from the sun, into chemical energy stored in glucose.

Monocot Leaves

Leaves of monocotyledonous plants, typically characterized by parallel veins.

Parallel Venation

A pattern of plant vein arrangement where veins run parallel to each other throughout the leaf blade.

Palmate Venation

A type of leaf venation where several main veins radiate outwards from a single point, resembling the palm of a hand, typical of some types of plants.