Question

ĮŐƵƌĂĂďĂŝǆŽƌĞƉƌĞƐĞŶƚĂƵŵĂĞƐƚƌƵƚƵƌĂƉůĂŶĂ͕ŶĂ ƋƵĂůĂƐĨŽƌĕĂƐWϭĞWϮƚġŵŵſĚƵůŽƐŝŐƵĂŝƐĂϱŬEĞ ϭϬŬE͕ƌĞƐƉĞĐƟǀĂŵĞŶƚĞ͘ P2 C E 2 m D 1,5 m P1 h = 4 m B A Žŵ ƌĞůĂĕĆŽ ă ƐŝƚƵĂĕĆŽ ĂƉƌĞƐĞŶƚĂĚĂ͕ ĂǀĂůŝĞ ĂƐ ĂĮƌŵĂĕƁĞƐĂƐĞŐƵŝƌ͘ /͘ K ŵŽŵĞŶƚŽ ŇĞƚŽƌ ŶĂ ĞǆƚƌĞŵŝĚĂĚĞ ĚĂ ďĂƌƌĂ ŚŽƌŝǌŽŶƚĂů;ƉŽŶƚŽͿǀĂůĞDсϭϱŬE͘ŵ͘ //͘ K ŵſĚƵůŽ ĚĞ ĞůĂƐƟĐŝĚĂĚĞ Ğ ĂƐ ŵĞĚŝĚĂƐ ĚĂ ƐĞĕĆŽ ƚƌĂŶƐǀĞƌƐĂů ŶĆŽ ŝŶŇƵĞŶĐŝĂŵ ŶĂ ĚĞƚĞƌŵŝŶĂĕĆŽĚŽƐĞƐĨŽƌĕŽƐŶĂƐďĂƌƌĂƐ͕ƉŽƌƐĞ ƚƌĂƚĂƌĚĞƵŵĂĞƐƚƌƵƚƵƌĂŝƐŽƐƚĄƟĐĂ͘ ///͘ ĨŽƌĕĂ Wϭ ĨĂǌ ĐŽŵ ƋƵĞ Ă ďĂƌƌĂ ĮƋƵĞ ƐƵďŵĞƟĚĂăŇĞǆĆŽŽďůşƋƵĂ͘ /s͘ K ĚŝĂŐƌĂŵĂ ĚĞ ĞƐĨŽƌĕŽƐ ĂǆŝĂŝƐ ŶĂ ďĂƌƌĂ Ġ ŶƵůŽ͘ ĐŽƌƌĞƚŽĂƉĞŶĂƐŽƋƵĞƐĞĂĮƌŵĂĞŵ

Accepted Answer

C) //Ğ/s͘

Answer

A) /Ğ//͘

Answer

B) /Ğ///͘

Answer

D) /͕///Ğ/s͘

Answer

E) //͕///Ğ/s͘ 26 E'E,Z//s/>

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