A Radiometer Has Two Square Vanes (1

question 10

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 radiation pressure on the blackened vane? ,

• A) 1.0 × 10^-10 Pa
• B) 1.0 × 10^-9 Pa
• C) 1.0 × 10^-8 Pa
• D) 1.0 × 10^-7 Pa
• E) 1.0 × 10^-6 Pa

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Definitions:

Chemical Synapses

Sites where neurons communicate with each other or with effector organs through chemical messengers.

Electrical Synapses

Specialized junctions between cells that allow for the direct passage of ions and electrical signals, facilitating rapid communication.

Amine Neurotransmitters

Amine neurotransmitters are chemical messengers derived from amino acids that transmit nerve impulses across synapses, including serotonin, dopamine, and norepinephrine.

Sensory Synapses

The connection points between sensory neurons and their target cells, where the transmission of sensory information takes place.