A plastic beach ball has radius $16\mathrm{.}0$ cm and mass $0\mathrm{.}100$ kg$,$ not including the air inside.$$Assume the air density is $1\mathrm{.}30$ kg$/$m$3$ both inside and outside.

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The ball is thrown straight up in the air. At the top of its trajectory, what is its acceleration?$$Enter a positive value if the acceleration$$is upward$$and enter a negative value if the$$acceleration is downward.

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By how much does the fluid level rise in the side of the manometer that is open to the atmosphere?

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Assuming no friction between the house and the upper end of the ladder, find the force of friction that the driveway exerts on the bottom of the ladder.$$If the force of friction is away from$$the wall, enter a negative value and if the force of friction is toward$$the wall, enter a positive value.