The number of significant figures in 10001 is
two.
five.
three.
six.

5

Explanation:

10001

The last digit is non zero and there are 5 digits.  The zeros in between are considered significant

There are 5 significant digits

harry byrd declared organized resistance by southern states would prevent racial integration.

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.