Two Unequal Masses Hang from Either End of a Massless $\Delta$

question 15

Multiple Choice

Two unequal masses hang from either end of a massless cord that passes over a frictionless pulley.Which of the following is true about the gravitational potential energy (U) and the kinetic energy of the system (K) after the masses are released from rest?

• A)\(\Delta\)U < 0 and \(\Delta\)K > 0
• B)\(\Delta\)U = 0 and \(\Delta\)K > 0
• C)\(\Delta\)U < 0 and \(\Delta\)K = 0
• D)\(\Delta\)U = 0 and \(\Delta\)K = 0
• E)\(\Delta\)U > 0 and \(\Delta\)K < 0

Understand the difference between ad valorem tariffs and specific tariffs.

Comprehend the basics of international trade, including the significance of tariffs and their impact.

Recognize the benefits of specialization and trade based on comparative advantage.

Analyze trade benefits between countries using comparative advantage.

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