oppler effect:

$=f_0\frac{v-v_{\text{o}\text{b}\text{s}}}{v-v_s}($velocity components in the direction of $v$ are positive$)$

nversion:

$al=1$kcal$=4186J$

Question $1$

$1$ pts

One kilogram of iron $($density $7\mathrm{.}8g\frac{m}{c}{m}^3)$ and $1$ kilogram of aluminum $($density $2\mathrm{.}7g\frac{m}{c}{m}^3)$ are dropped into a pool. Which is acted on by the largest buoyant force?

Neither is acted on by a buoyant force. They both sink to the bottom.

the aluminum

the iron

Both are acted on by the same buoyant force.

This is impossible to know since we do not know the shape of the objects.

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