Earth Is About 28,000 Light Years from the Center of the Milky

question 41

Multiple Choice

Earth is about 28,000 light years from the center of the Milky Way Galaxy. If a supernova explosion occurred approximately 14,000 light years away from us and released 2.0 × 10⁴⁶ J of energy in a sudden burst of light, how much energy would enter one of your pupils? Assume the diameter of a pupil to be about 4 mm. For comparison, our Sun radiates approximately 4 × 10²⁶ J/s.)

• A) 1.1 J
• B) 3.0 × 10²³ J
• C) 3.5 J
• D) 4.6 J
• E) 2.2 J

Acknowledge the importance of safety, nutrition, and physical activities for preschoolers.

Comprehend the evolution of language skills and cognitive abilities in preschool-aged children.

Appreciate the role of imaginative play in the development of preschoolers.

Guide parents on effective approaches to discipline and managing aggressive behavior in preschoolers.

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Definitions:

Ethmoid Bone

A spongy, delicate bone that forms part of the cranial floor and nasal cavity, contributing to the nasal septum and the orbital walls.

Nasal Conchae

Long, narrow, curled shelves of bone that protrude into the breathing passage of the nose to increase surface area for moistening, warming, or cooling the air entering the lungs.

Ethmoid Bone

A sponge-like, cube-shaped bone located between the eyes, forming a portion of the nasal cavity and the eye sockets.

Auditory Ossicles

Three small bones (the malleus, incus, and stapes) located in the middle ear that transmit sound vibrations from the eardrum to the inner ear.