Quin walks with a velocity of 1.6 m/s east. she does so while riding on a conveyor belt that moves at a velocity of 0.3 m/s west. what is quin's velocity?

Transfer chemicals from one location to another to weather objects. a-water b-physical weathering c-chemical weathering

Ineed the answer to question 1 , i’m desperate

The speed of sound in ice, water, and steam is shown. what best explains the speed of sound in different states of matter? sound travels fastest in ice because energy is easier to transfer when the molecules are close together. sound travels slowest in steam because the sound has to move around the gas molecules that are far apart. sound travels fastest in ice because the temperature of solids is always greater, so the heat transfers the sound energy. sound travels slowest in steam because the pressure is so great the sound cannot travel though the steam particles.