A 20-Kg Block Slides on a Frictionless 15 $\degree$ Inclined Plane

question 43

Multiple Choice

A 2.0-kg block slides on a frictionless 15 $\degree$ inclined plane.A force acting parallel to the incline is applied to the block.The acceleration of the block is 1.5 m/s² down the incline.What is the applied force?

• A)8.1 N down the incline
• B)3.0 N down the incline
• C)2.1 N up the incline
• D)3.0 N up the incline
• E)8.1 N up the incline

Understand the evolutionary progression from early chordates to modern vertebrates and identify key milestones in vertebrate evolution.

Understand the distinctive characteristics and evolutionary significance of vertebrates with four-chambered hearts.

Describe adaptations required for avian flight and their evolutionary implications.

Identify key morphological traits and behaviors unique to primates and their evolutionary significance.

---

Definitions:

Fort Ticonderoga

A historic fort in New York that played a significant role in the American Revolutionary War after being captured by American forces in 1775.

Territorial Rights

Legal and political rights concerning the ownership and governance of a specified area or land.

Appalachian Mountains

The Appalachian Mountains are a mountain range in the eastern United States, extending from Alabama to Newfoundland, known for their natural beauty and biodiversity.

William Howe

A British Army officer who served as Commander-in-Chief of British forces during the early years of the American Revolutionary War, known for his command in the Battle of Bunker Hill and the capture of Philadelphia.