What is the value of the GPE store for a 10 kg object held 50 m above the surface of the Earth (assume g = 10 N/kg)?

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?

What are the starting materials for nuclear fission? two small nuclei two large nuclei a neutron and a large nucleus a neutron and a small nucleus

Scientists follow specific processes in order to determine valid explanations and conclusions from observations. david observed strange lights in the sky above his home outside of roswell, new mexico. the only explanation that makes sense to him is that there are ufos in the area. what should david do next to verify his explanation?