Recent content by amjber2

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    Calculate Max Force Exerted by Octopus in Salt Water 32.3m Deep

    A very powerful octopus uses one sucker of diameter 2.75 cm on each of the two shells of a clam in an attempt to pull the shells apart. Find the greatest force (N) that the octopus can exert in salt water 32.3 m depth. I tried using F=PA but cannot seem to get the right answer. the depth is...
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    Calculating Buoyant Force on a Helium-Filled Balloon

    buoyant forces I was having trouble with this problem. please let me know how to approach this. thanks. An empty rubber balloon has a mass of 0.0135 kg. The balloon is filled with helium at a density of 0.181 kg/m3. At this density the balloon is spherical with a radius of 0.400 m. If the...
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    Surface tension, capillary action, viscous fluid

    I was having trouble with this problem. please let me know how to approach this. thanks. The density of ice is 920 kg/m3, and that of seawater is 1030 kg/m3. What fraction of the total volume of an iceberg is exposed?