An egg which is initially at rest is dropped on a hard surface and breaks. We wait that any temperature change equilibrates. Take the egg as system.

(a) What is the sign of W?

(b) What is the sign of ?Epot?

(c) What is ?Ekin (just before and just after impact)?

(d) What is ?Utot?

(e) What is the sign of Q?

Other Requirements: An egg which is initially at rest is dropped on a hard surface and breaks. We wait that

any temperature change equilibrates. Take the egg as system.

(a) What is the sign of W?

(b) What is the sign of ?Epot?

(c) What is ?Ekin (just before and just after impact)?

(d) What is ?Utot?

(e) What is the sign of Q?

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