Question

The acceleration due to gravity at the surface of the moon is 1.6 m/s². If the radius of the moon is 1.7 x 10^6 m, calculate the mass of the moon.​

Answer 1

chemical change-

a change in which new substance with different properties is formed is called chemical change.

example- curdling of milk.

physical change-

a chance in which no new substance is formed and change broght in its physical state only is called physical change.

example- rusting of iron