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3 years ago

7

Starting from one oasis, a camel walks 25 km in a direction 30° south of west and then walks 30 km toward the north to a second

oasis. what is the direction from the first oasis to the second oasis?

1 answer:

Vaselesa [24]3 years ago

8 0

The second oasis is slightly north-west of the first oasis.

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3 years ago

A train whistle has a sound intensity level of 70. dB, and a library has a sound intensity level of about 40. dB. How many times

kodGreya [7K]

Answer:

The sound intensity of train is 1000 times greater than that of the library.

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$70=10log_{10}\left ( \frac{I_1}{I_0}\right )$

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3 years ago

A harmonic wave is traveling along a rope. It is observed that the oscillator that generates the wave completes 43.0 vibrations

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Answer:

0.218

Explanation:

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Frequency, F = 43 / 33 hz

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Wave velocity = 4.24 / 15

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3 years ago