A mass attached to a spring oscillates with a period of 4 sec. After 4 kg are added, the period becomes 6 sec. Assuming that we can neglect any damping or external forces, determine how much mass was originally attached to the spring.

the answer is mosques. they are an important part of islamic culture.

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.

because if the tool that you are using is not balanced it there would be false mass.

im srry but ur wrong the answer is d a smooth rock, some red dirt, and an empty bird's nest.