Abucket of water with a mass of 2.0 kg is attached to a rope that is wound around a cylinder. the cylinder has a mass of 4.0 kg and is mounted horizontally on frictionless bearings. the bucket is released from rest. (a) find its speed after it has fallen through a distance of 1.50 m

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

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?

An electron moves with a constant horizontal velocity of 3.0 × 106 m/s and no initial vertical velocity as it enters a deflector inside a tv tube. the electron strikes the screen after traveling 26 cm horizontally and 19 cm vertically upward with no horizontal acceleration. what is the constant vertical acceleration provided by the deflector? (the effects of gravity can be ignored.)