Aboat travels north across a river at a velocity of 22 meters /second with respect to the water. the river's velocity is 22
meters /second to the east. what is the resultant velocity of the boat, as measured from the land?

a.242 meters /second northeast
b. 35.5 meters/ second north
c. 221 meters /second northeast
d. 28.7 meters/ second east

Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.

Which of the following are properties of mechanical waves? check all that apply ⭕️ particles of the medium move back and fourth, but do not move with the wave. ⭕️ the particles of the medium always move parallel to the wave motion. ⭕️ wave motion begins with a disturbance in the medium. ⭕️ waves transport energy from a source outward, away from the source.

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving