A pipe displaces 60 mL when placed in a container of water if the pipe has a mass of 78g, what is the density of the pipe

Achild has maximum walking speed of 1.6 m/s. what is the length of the child's legs? 0.26 m

1which body contains the majority of the mass in the solar system earth jupiter the moon the sun 2 what keeps the objects in the solar system such as planets orbiting around the sun the force of gravity the galaxy exerts on all objects within it including the solar system the great distance between the sun and the planets the sun's nuclear fusion which acts on each object the gravitational force between the sun and each object in the solar system

What is a possible explanation for a set of facts that can be tested by further investigations called