Determine the magnitude of the electrostatic force on a 0.06000 C charged object when it is placed in an electric field of magnitude 1500 N/C

An object of dimensions 50 cm x 40 cm x 0.20 cm has a mass 60g. find its density in g/cm3 and kg/ m3

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

The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space.b. we'll know it immediately because it will be brighter than the full moon in the sky.c. we won't know about it until 600 years from now.d. none of the above.