The human ear is most sensitive to the sounds in what range?

1. 500 to 1500 Hz
2. 500 to 1500 s
3. 4000 to 5000 Hz
4. 5000 to 10000 s
5. 10000 to 20000 Hz
6. 2000 to 3000 s
7. 5000 to 10000 Hz
8. 2000 to 3000 Hz
9. 4000 to 5000 s
10. 100 to 250 Hz

You are given a vector a = 125i and an unknown vector b that is perpendicular to a. the cross-product of these two vectors is a × b = 98k. what is the y-component of vector b?

What is the measurement of how fast an object moves relative to a reference point?

Give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.