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jolli1 [7]
3 years ago
13

What is the wave speed if a wave has a frequency of 12 hz and a wavelength of 3.0 m?

Physics
1 answer:
Anna007 [38]3 years ago
8 0

i think you should multiply them, the speed is 12 * 3 = 36 m/s

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When discharging, what percentage of the starting voltage will the capacitor reach after 5rc?
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When discharging equivalent of 0% starting voltage will the capacitor reach after 5RC.

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6 0
2 years ago
a person is riding a bike and accelerating at 2.8m/s with a force of 100 n what is the mass of the rider and bicycle
kiruha [24]
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7 0
3 years ago
Find the value of T1 if 1 = 30°, 2 = 60°, and the weight of the object is 139.3 newtons.
Lelechka [254]

Answer:

Option A (69.56 newtons) is the appropriate solution.

Explanation:

According to the question,

On the X-axis,

⇒ T_1Cos30^{\circ}-T_2Cos60^{\circ}=0

or,

    T_1Cos 30^{\circ}=T_2Cos60^{\circ}

On substituting the values, we get

      T_1\times \frac{\sqrt{3} }{2}=T_2\times \frac{1}{2}

      T_1\times \sqrt{3} =T_2....(equation 1)

On the Y-axis,

⇒ T_1Sin30^{\circ}+T_2Sin60^{\circ}=139.3 \ N

                        \frac{T_1}{2} +\frac{\sqrt{3} }{2} =139.2 \ N

                    T_1+\sqrt{3}T_2=139.2\times 2

From equation 1, we get

           T_1+\sqrt{3}\times \sqrt{3}T_1 =278.4 \ N

                        T_1+3T_1=278.4 \ N

                                4T_1=278.4 \ N

                                  T_1=\frac{278.4}{4}

                                       =69.6 \ N  

6 0
3 years ago
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