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amid [387]
3 years ago
6

What term describes the ability of something to float on water

Chemistry
2 answers:
schepotkina [342]3 years ago
7 0

Answer: (B) Buoyancy

Explanation: Buoyant force is an upward force that fluids exert on any object that is placed in them. The ability of fluids to exert this force is called buoyancy

Amanda [17]3 years ago
5 0

Answer:

\boxed {\tt B. \ Buoyancy}

Explanation:

Let's define each answer choice.

A. Density

  • The amount of mass in a certain space

B. Buoyancy

  • The tendency of an object to float on a fluid/water

C. Magnetism

  • The ability of objects to product attracting or repulsing fields

D. Solubility

  • The ability to dissolve

The definition that matches "the ability for something to float on water" is buoyancy. Therefore, the correct answer is B. Buoyancy

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Water flows from the bottom of a large tank where the pressure is 100 psig through a pipe to a turbine which produces 5.82 hp. T
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Explanation:

Bernoulli equation for the flow between bottom of the tank and pipe exit point is as follows.

   \frac{p_{1}}{\gamma} + \frac{V^{2}_{1}}{2g} + z_{1} = \frac{p_{2}}{\gamma} + \frac{V^{2}_{2}}{2g} + z_{2} + h_{f} + h_{t}

    \frac{(100 \times 144)}{62.43} + 0 + h[tex] = [tex]\frac{(50 \times 144)}{(62.43)} + \frac{(70)^{2}}{2(32.2)} + 0 + 40 + 60

                          h = \frac{(50 \times 144)}{(62.43)} + \frac{(70)^{2}}{2(32.2)} + 40 + 60 - \frac{(100 \times 144)}{(62.43)}

                            = 60.76 ft

Hence, formula to calculate theoretical power produced by the turbine is as follows.

                                 P = mgh

                                     = 100 \times 60.76

                                     = 6076 lb.ft/s

                                     = 11.047 hp

Efficiency of the turbine will be as follows.

                \eta_{t} = \frac{P_{actual}}{P_{theoretical}} × 100%

                                = \frac{5.82}{11.047} \times 100%                      

                                = 52.684%

Thus, we can conclude that the efficiency of the turbine is 52.684%.

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