3 years ago

What materials makes up the inner core?

Physics

1 answer:

natita [175]3 years ago

7 0

Answer: mostly out of an alloy created out of iron and nickel, with little bits of platinum, uranium, and gold

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F = ma

F = net force, m = mass, a = acceleration

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F = 2500N, a = 3.0m/s²

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An Object is moving due south at 16 m/s, when a force accelerates it at 4m/s in a southerly direction. How long will it take for

N76 [4]

Answer:

Time taken to accelerate to 48 m/s = 8 seconds

Explanation:

Initially the object is moving south at = $16 m/s$

So, initial velocity of the object = $16 m/s$

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Final velocity towards south = $48 m/s$

Using equation of motions:

$v_f=v_i+at$

where

$v_f\rightarrow$ final velocity

$v_i\rightarrow$ initial velocity

$a\rightarrow$ acceleration

$t\rightarrow$ time

Plugging in values.

$48=16+(4)t$

$48=16+4t$

Subtracting both sides by 16

$48-16=16+4t-16$

$32=4t$

Dividing both side by 4.

$\frac{32}{4}=\frac{4t}{4}$

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Time taken to accelerate to 48 m/s = 8 seconds

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3 years ago