Z rusztowania o wysokości 10 m spada stalowe wiadro. O ile stopni ogrzeje się to wiadro
w wyniku oporów ruchu i uderzenia o powierzchnię ziemi, jeżeli 70% energii mechanicznej
ulega przemianie w energię wewnętrzną przedmiotu? Ciepło właściwe stali wynosi 490 J/kgoC.
Wskaż właściwą odpowiedź zapisaną z dokładnością do dwóch cyfr znaczących.
A. 0,29oC
B. 0,143oC
C. 0,14oC
D. 0,1oC

Question

01-11-2022
Physics

Answered

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Z rusztowania o wysokości 10 m spada stalowe wiadro. O ile stopni ogrzeje się to wiadro
w wyniku oporów ruchu i uderzenia o powierzchnię ziemi, jeżeli 70% energii mechanicznej
ulega przemianie w energię wewnętrzną przedmiotu? Ciepło właściwe stali wynosi 490 J/kgoC.
Wskaż właściwą odpowiedź zapisaną z dokładnością do dwóch cyfr znaczących.
A. 0,29oC
B. 0,143oC
C. 0,14oC
D. 0,1oC

Sagot :

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