Aflower pot falling 45 meters hits the ground with a speed of . about 60 m/s. b. about 120 m/s. c. more than 120 m/s. d. about 30 m/s.

d. about 30 m/s.

Explanation:

we use the equation for final speed in free fall:

where is the final speed, the initial speed, in this case , is the acceleration of gravity and is the height:

so replacing all known values:

we use the equation for final speed in free fall:

so the answer is:  d. about 30 m/s.

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.

wind moving at higher speeds will transfer more energy to the water, resulting in stronger waves.