A Radiometer Has Two Square Vanes (1

question 42

Multiple Choice

A radiometer has two square vanes (1.0 cm by 1.0 cm) ,attached to a light horizontal cross arm,and pivoted about a vertical axis through the center,as shown in the figure.The center of each vane is 6.0 cm from the axis.One vane is silvered and it reflects all radiant energy incident upon it.The other vane is blackened and it absorbs all incident radiant energy.An electromagnetic wave with an intensity of 0.30 kW/m² is incident normally upon the vanes.What is the torque due to radiation pressure on the vane assembly about the vertical axis? (c = 3.00 × 10⁸ m/s,μ₀ = 4π × 10^-7 T ∙ m/A,ε₀ = 8.85 × 10^-12 C²/N ∙ m²)

• A)2.4 × 10^-12 N ∙ m
• B)6.0 × 10^-12 N ∙ m
• C)1.2 × 10^-11 N ∙ m
• D)1.8 × 10^-11 N ∙ m
• E)2.4 × 10^-11 N ∙ m

Grasp the fundamental and technical aspects influencing stock valuation and investment strategies.

Interpret the roles and functions of securities exchanges, investment banks, and financial orders in the trading process.

Understand the principles and applications of total quality management.

Grasp the criteria and significance of scientific methods in management.

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Definitions:

Homogeneous Teams

Groups composed of members with similar backgrounds, skills, and perspectives.

Functional Groups

In chemistry, specific groups of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules.

Homogenous Teams

Teams made up of individuals with similar qualifications, experiences, or demographics.

Collective Intelligence

The shared or group intelligence that emerges from the collaboration, collective efforts, and competition of many individuals and appears in consensus decision-making.