Work: an Airplane Flies 120 Km at a Constant Altitude

question 46

Multiple Choice

Work: An airplane flies 120 km at a constant altitude in a direction 30.0° north of east. A wind is blowing that results in a net horizontal force on the plane due to the air of 2.40 kN in a direction 10.0° south of west. How much work is done on the plane by the air?

• A) -2.71 × 10⁸ J
• B) -0.985 × 10⁸ J
• C) -221 × 10⁸ J
• D) 221 × 10⁸ J
• E) 0.821 × 10⁸ J

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Definitions:

Security Needs

Basic human requirements for safety and security, including physical safety, employment, resources, health, and property, as part of Maslow's hierarchy of needs.

Social Needs

The human requirements for love, belonging, and affection that motivate behavior and play a major role in mental health.

Esteem Needs

According to Maslow's hierarchy of needs, these are the fourth level of human needs, focusing on self-esteem, confidence, achievement, respect of others, and respect by others.

Emotional Holes

Psychological or emotional voids that individuals may attempt to fill with various behaviors or substances, often leading to unhealthy patterns.