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Problems with Solutions - Acoustics | PHYS 170, Assignments of Physics

Duquesne UniversityPhysics

Material Type: Assignment; Class: Acoustics; Subject: Physics; University: Duquesne University; Term: Unknown 1989;

Typology: Assignments

Pre 2010

Uploaded on 08/18/2009

koofers-user-8sq
koofers-user-8sq 🇺🇸

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12. Calculate the potential energy of: a) A 3 kg block of iron held 2 m above the ground. PE saty = moh = C3 ks) 44 mls* C2 am) = 589 7 b) A spring with a spring constant K = 10° N/m stretched 10 cm from its equilibrium length. = a PE ewe = 2 3K (ox) = 5/10 %\(o)0m) = S100 T oye units } c) A 1 L bottle (V = 1000 cm’) with a pressure 10* N/m? above atmospheric pressure (P = 10° N/m’). Iwo 23 c vp PE cage ap? 21 x05 Mn®) Cin wR —_ = 9,390 'S | Convert cud to mw? 00 att ( ww) Cj fee) He i ) < i ce