It is becomes difficult to walk on a slippery road due to low friction. ... We can not fix nail in the wood or wall if there is no friction. ... A horse can not pull a cart unless friction furnishes him a secure Foothold. We can write on a paper or on a board.
Answer:
The second one because there is less <em><u>distance between them.</u></em>
Answer:
its surface temperature = 54.84 ° C
Explanation:
The density of aluminium
= 2700 kg/m ³
Heat capacity
= 897 J/Kg.K
radius of the sphere (r) = 0.081029 m
= 25 °C
= 124.978 °C
time (t) = 767.276 s
Using the formula :

where.

Replacing our values ;we have:








T ≅ 54.84 ° C
Therefore, its surface temperature = 54.84 ° C