Một hòn đá rơi từ một cái giếng cạn đến đáy mất 3 giây. Cho g = 9,8 m/s². Tính độ sâu của giếng.

laticia draws the diagram below to show earth’s magnetic field.

answer

the arrows to the right of earth should point up.

report!

explanation:

physics means: "the branch of science concerned with the nature and properties of matter and energy. the subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms."

pythagoras' theorem

square root (-5^2+9^2)

square root (25+81)

square root (106)

angle is tan^-1(9/5)

neg x, pos y