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Aleonysh [2.5K]
3 years ago
7

Describe how tree rings indicate time. Do the same for ice cores and varves?

Physics
1 answer:
tatyana61 [14]3 years ago
7 0

Answer:

counting tree rings can indicate age

Explanation:

hope i helped at least a little bit :)

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The distance between the centers of the wheels of a motorcycle is 156 cm. The center of mass of the motorcycle, including the ri
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Answer:

a = 9.86 m/s²

Explanation:

given,

distance between the centers of wheel = 156 cm

center of mass of motorcycle including rider = 77.5 cm

horizontal acceleration of motor cycle = ?

now,

The moment created by the wheels must equal the moment created by gravity.

take moment about wheel as it touches the ground, here we will take horizontal distance between them.

then, take the moment around the center of mass. Since the force on the ground from the wheels is horizontal, we need the vertical distance.

now equating both the moment

m g d = F h

d is the horizontal distance

h is the vertical distance

m g d = m a h

term of mass get eliminated

g d = a h

so,

a = \dfrac{g\ d}{h}

a = \dfrac{9.8\times 0.78}{0.775}

a = 9.86 m/s²

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3 years ago
Convert an acceleration of 12m/s^2 to km/h^2​
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Answer:

43.2

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A box having a mass of 0.2 kg is dragged across a horizontal floor by
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