Asound-producing object is moving away from an observer. the sound the observer hears will have a frequency that actually being produced by the object.

the same as

higher than

lower than

need !

Part a constants huck finn walks at a speed of 0.60 m/s across his raft (that is, he walks perpendicular to the raft's motion what is huck's velocity (speed and direction) relative to the river bank? express your answer to three significant figures and include the appropriate units. relative to the shore)

In a system, when potential energy decreases, then entropy also decreases. true false

Which of the following statements accurately describes the sign of the work done on the box by the force of the push? a. positive b. negative c. zero