An ideal spring has a spring constant of 2500 N/m. is stretched 4.0 cm. How much work is required to stretch the spring by 4.0 cm?

A) 4.0 J
B) 0.00 J
C) 1.0 J
D) 3.0 J
E) 2.0 J


E

Physics & Space Science

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An electrically neutral metal sphere hangs from an insulating thread. A charged glass wand is brought near to the sphere. Describe what occurs next:

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Molar Specific Heats: How much heat is required to raise the temperature of 2.00 moles of an ideal monatomic gas by 10 C° at constant volume? (R = 8.31 J/mol ? K).

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A 2.0 ?F capacitor is charged through a 50,000. ? resistor. How long does it take for the capacitor to reach 90% of full charge?

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