What is linear expansitivity

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

The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?

Alarge cruise ship of mass 7.00 ✕ 107 kg has a speed of 11.6 m/s at some instant. (a) what is the ship's kinetic energy at this time? (b) how much work is required to stop it? (give the work done on the ship. include the sign of the value in your answer.) (c) what is the magnitude of the constant force required to stop it as it undergoes a displacement of 3.00 km?