angeladominguezgarci
27.07.2019 •
Physics
Moving your head toward a sound and cupping your ear would be in detecting the of a sound.
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Ответ:
Location
Explanation:
This would be useful if you want to detect the location of a sound. Cupping your ear and moving your head toward a sound will most likely help you detect where the sound is coming from. This practice can also help amplify sounds, make speech more intelligible or make distant whisper louder.
Ответ:
60
Explanation:
Translation -
A book weighing 12 N is balanced on a table. Knowing that the static friction coefficient is 0.5, how much is the friction force worth?
Friction force is
f = u * n
f = 0.5 * 12N
f = 60