How many significant figures are in 10,002?

A)

ambiguous

B)

2

C)

3

D)

4

E)

5


E

Physics & Space Science

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Indicate whether the statement is true or false

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A 1 200-kg experimental rocket sled on level frictionless rails is loaded with 55.0 kg of propellant. It exhausts the propellant in a 20-s "burn." If the rocket, initially at rest, moves at 155 m/s after the burn, what impulse is experienced by the rocket sled?

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