Gravitational Potential Energy: a Meteoroid, Heading Straight for Earth, Has

question 10

Multiple Choice

Gravitational potential energy: A meteoroid, heading straight for Earth, has a speed of 14.8 km/s relative to the center of Earth as it crosses our moon's orbit, a distance of 3.84 × 10⁸ m from the earth's center. What is the meteroid's speed as it hits the earth? You can neglect the effects of the moon, Earth's atmosphere, and any motion of the earth. (G = 6.67 × 10^-11 N ∙ m²/kg², M_earth = 5.97 × 10²⁴ kg)

• A) 18.5 km/s
• B) 21.5 km/s
• C) 32.4 km/s
• D) 87.3 km/s

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Definitions:

Inventory Purchases

Refers to the acquisition of goods and materials a company intends to sell or use in production, forming part of its inventory.

Cost of Goods Sold

The direct expenses linked to the creation of products sold by a business.

Ending Inventory

The total value of goods available for sale at the end of an accounting period.

Inventory Increase

This refers to a situation where the quantity or value of inventory items held by a company grows from one accounting period to another.