Afire engine is rapidly approaching you at a stop light. what happens to the frequency and pitch of the sound as the fire engine draws closer? the frequency increases, and the pitch decreases the frequency increases, and the pitch increases the frequency decreases, and the pitch decreases the frequency decreases, and the pitch increases

Ithink they do have the same properties just in less quantities i think

Is a  vector quantity  that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.

The answer is a) taiga because taigas are cold

It equals just about 6,300 km per hour each day an week