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Vilka [71]
3 years ago
11

By counting the number of waves that pass a certain point each second, we will know the _______ of the wave.

Physics
2 answers:
Rom4ik [11]3 years ago
8 0
The answer is A. Frequency


Hope I helped!


goodnight
Travka [436]3 years ago
6 0
The answer is A. Frequency
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A person is pulling their 20 kg luggage using the luggage handle. The handle is at an angle of 56 degrees above the horizontal.
rusak2 [61]

Answer:

The answer to your question is:  a = 1.99 m/s²

Explanation:

Data

mass = 20 kg

angle = 56°

Force = 71 N

horizontal acceleration = ?

Process

Find the horizontal force

                                           cos Ф = adjacent side / hypotenuse

                                          adjacent side = hypotenuse x cosФ

                                          adjacent side = 71 x cos 56

                                          a.s. = 39.70 N

Newton's second law

                                  F = ma

                                  a = F/m

                                 a = 39.7 / 20

                                  a = 1.99 m/s²

4 0
3 years ago
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