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To be a successful water polo player, one needs to have his head, arms, and part of the upper torso out of the water. Since floating alone won't work, players tread water. How much force is the swimmer exerting to keep his head, part of his torso, and his arms above the surface of the water? Use a free-body diagram and a force balance to solve this problem. The buoyant force acts in the direction opposite to gravity and is known to be equal to the weight of the fluid displaced by the object. Use Table to estimate the volume of the player that is in the water.
Approximate Displaced Volumes of Body Parts in Water
Body Part
Volume (in3)
Head
400
Torso
2000
Arm
350
Leg
700
A tank in the shape of an inverted right circular cone has height 9 meters and radius 13 meters. It is filled with 6 meters of hot chocolate.
A company wishes to manufacture a box with a volume of 56 cubic feet that is open on top and is twice as long as it is wide. Find the width of the box that can be produced using the minimum amount of material.
the wind in 3 hours and travel the same distance against the wind in 8 hours. What is the speed of the wind?
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dolly has just opened a registered education fund for her daughter lolly. she wants to contribute 3000 at the beginning
graphs and trees provide you with ways to visualize data sets and the opportunity to do analysis on the data e.g.
Find the derivative using logarithmic differentiation
Find the nodes x_i and the weights w_i so that the Gaussian quadrature of the sum from i=1 to 2 of (w_i) f(x_i) approximating the integral from -1 to 1 of f(x)dx is exact when f(x) is a polynomial of as high degree as possible.
1. what is the population parameter sample statistic and type of data for a given research study?2. what three facets
Probability for rolling a pair of dices, You are rolling a pair of dices, one red and one green. What is the probability of the following outcome?
given the equations2x1 - 6x2 - x3 - 38- 3x1 - x2 7x3 - 34- 8x1 x2 - 2x3 - 20a solve by gauss elimination with
Find the price function p(x) , where x is the number of the television sets sold per week.
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