Compare protons, electrons, and neutrons with respect to location within atoms, electric charge, and mass.

Aplanet of mass m 6.75 x 1024 kg is orbiting in a circular path a star of mass m 2.75 x 1029 kg. the radius of the orbit is r 8.05 x107 km. what is the orbital period (in earth days) of the planet tplanet?

Drag each tile to the correct box. tiles bra i sequence

Which of the following are guidelines to follow for obtaining accurate observations