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Eddi Din [679]
3 years ago
15

Consider the following:

Physics
1 answer:
mihalych1998 [28]3 years ago
7 0

Answer:

I think it's 3 c only the loudness of the sound

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A. Matter and energy

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A track star runs 100 meters in 10 seconds. What is the star's average speed?
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With your hand parallel to the floor and your palm upright, you lower a 3-kg book downward. If the force exerted on the book by
lara31 [8.8K]

According to the net force, the acceleration of the book is 16.47 m/s².

We need to know about force to solve this problem. According to second Newton's Law, the force applied to an object will be proportional to mass and acceleration. Hence, it can be written as

∑F = m . a

where F is force, m is mass and a is acceleration

From the question above, we know that

m = 3 kg

g = 9.8 m/s²

F1 = 20 N

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∑F = F1 + W

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∑F = 20 + 29.4

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Find the acceleration

∑F = m . a

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a = 16.47 m/s²

Find more on force at: brainly.com/question/25239010

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7 0
1 year ago
¿Qué ocurre como consecuencia de las corrientes de convección en la astenosfera?
Vladimir [108]

Respuesta:En la astenosfera existen lentos movimientos de convección que explican la deriva continental. Además, el basalto de la astenosfera fluye por extrusión a lo largo de las dorsales oceánicas, lo cual hace que se renueve y expanda constantemente el fondo oceánico. :D

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