Ahunter aims horizontally at a target on the same level as his rifle. if the bullet leaves his rifle at a velocity of 154.6 m/s and hits 0.64 meters below the target, how far away is the target? (hint: you are looking for dx)round your answer to the nearest 0.01. do not add units.

The bullet's position vector has components

where we're given the initial velocity and the initial height of the bullet , and is the acceleration due to gravity. Note that we take the bullet's starting position to be the origin.

We're also told that after some time , the time it takes for the bullet to hit the target, the bullet's vertical position is 0.64 m below where it was aimed, which translates to at this time . Then we can solve for this time:

Finally, the target's distance from the origin is at this time :

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.