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umka2103 [35]
3 years ago
12

Use the equation Q = (m)(c)(Δ T) to calculate the heat gained by the cold water for each trial. Show your work using the problem

-solving method shown in previous rubrics. The specific heat for water (c) is 4186 J/(kg * C°).
cold water beginning temperature - 20 C
Physics
1 answer:
kirill [66]3 years ago
4 0
Trial       Heat Gained
1              37674 J2              43534.4 J3              32650.8 J
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Constants Modern wind turbines are larger than they appear, and despite their apparently lazy motion, the speed of the blades ti
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It is given that the length of blade of the turbine is 58 m.

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                                                      f=\frac{14}{60}\ s^-1

                                                      f=0.23333 Hz

Here Hz[ hertz] is the unit of frequency.

The angular velocity of the turbine \omega =2\pi f

                                                          \omega=2*3.14*0.2333

                                                          \omega=1.465124 radian/second

Now we have to calculate the centripetal  acceleration of the blade.

Let the linear velocity of the blade is v.

we know that  linear velocity v=ωr

The centripetal acceleration is calculated as-

                                                                      a_{c} =\frac{v^2}{r}

                                                                            =\frac{[\omega r]^2}{r}

                                                                            =\omega^2r

                                                                            =[1.465124]^2 *58

                                                                            =124.5021234 m/s^2      [ans]

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