يقف طالب أمام مرآة محدبة، فتكون صفات صورته المتكونة A.
A حقيقية - معتدلة - أصغر من الجسم
B حقيقية - متدلة - أكبر من الجسم
C خيالية - معتدلة - أصغر من الجسم
D خيالية - معتدلة - أكبر من الجسم​

Tafari worked one summer on a ship that set weather buoys in the ocean. he watched how one of the buoys moved in the water. describe which parts of the wave would cause the buoy to bob up and down. which wave property determined how fast the buoys bobbed in the water? he observed that when the wind blew harder, the ocean waves were larger, and the buoys moved away from the ship. what effect, if any, did the waves have on how far the buoys moved? explain your answer.

A14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.

Is the number of complete movements of a wave per second.