A fruit drops from the top of a tree 20m tall. What is the time it takes the fruit to reach the ground. (take g=10m/s^2)

Awoman stands a distance d from a loud motor that emits sound uniformly in all directions. the sound intensity at her position is an uncomfortable 2.0×10-3 w/m2. at a distance 2.6 times as far from the motor, what are (a) the sound intensity and (b) the sound intensity level relative to the threshold of hearing?

Decreased sensitivity to an unchanging stimulus is known as

Sunidhi made a study chart about changes in states of matter. which headings best complete the chart?