How are mass and volume alike The cease to exist when placed in a liquid

They are only found in solids

They always stay the same

They are both measured in grams

At what point the certain object feels zero garvitational force between earth and the moon. take the required information from the book.required: distance away from earth or moon

The boy of mass 30 kg is at r1= 2 meters from the fulcrum. of the girl is 45 kg, at what r2 must she sit so that they are balanced ?

What are similarities and differences between refraction, reflection, diffraction and absorption?