The first ball (ball a) was affected (???) most by air resistance
Answer:
I think A not sure took this test 5 yrs ago
Explanation:
Answer:
T = 61.06 °C
Explanation:
given data:
a thin metal bar consist of 5 different material.
thermal conductivity of ---
K {steel} = 16 Wm^{-1} k^{-1}
K brass = 125 Wm^{-1} k^{-1}
K copper = 401 Wm^{-1} k^{-1}
K aluminium =30Wm^{-1} k^{-1}
K silver = 427 Wm^{-1} k^{-1}
WE KNOW THAT
total resistance of bar = R steel + R brass + R copper + R aluminium + R silver
let T is the temperature at steel/brass interference
will be constant throughtout the bar
therefore we have
solving for T we get
T = 61.06 °C
It depends, one can be darker or lighter. There can be many colors of shade, there can also be different patterns of shade.
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