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A train is accelerating at a rate of 11.8 m/s2. What is this rate in units of nm/ms2?
A1.18x10^-11 nm/ms^2
B1.18x10^-14nm/ms^2
C1.18x10^7nm/ms^2
D1.18x10^9nm/ms^2
E1.18x10^4nm/ms^2

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Answer:

E. 1.18x10^4nm/ms^2

Explanation:

The aceleration of the train is given in m/s². We need to conver, first, the meters to nm and then, the seconds to ms as follows:

11.8m/s² * (1x10⁹nm / 1m) = 1.18x10¹⁰nm / s²

Now, as 1s is equal to 1000ms:

1.18x10¹⁰nm / s² * ((1s)² / (1000ms)²)) =

1.18x10⁴nm / ms²

Thus, right option is:

E. 1.18x10^4nm/ms^2

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