What is the gravitational potential energy of a 0.1 kg apple sitting on top of a 12.5 m flagpole? note: gpe= mgh. m= mass, g= acceleration due to gravity (9.8 m/s^2),
h= objects height above the ground.

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?

What conclusion can be made based on the temperature of soil when the light hits the soil at 0°, 45°, and 90° angles in section 2 of the experiment? did your results support your hypothesis? why or why not?

Ain is , is 's of ? 0.62 0.79 1.27 1.50