Is mechanical energy kinetic energy, potential energy, or both form of energy?

If the solid form of most molecules is heavier than the liquid form, why does ice float

What machine will work best to raise a bucket from the well

Which statement accurately describes which subatomic particles are involved in nuclear and chemical reactions? A. Protons and neutrons are involved in nuclear reactions, while electrons are involved in chemical reactions. B.

An object that has kinetic energy must be ... A) at rest. B) stopped. C) in motion. D) at an elevated position.

Which of the following shows the abbreviation for a unit of density? (a) lb/mL (b) g/cm (c) g/cm3 (d) L/kg

If you lift the front wheel of a poorly maintained bicycle off the ground and then start it spinning at 0.69 rev/s, friction in the bearings causes the wheel to stop in just 13 s. If the moment of inertia of the wheel about its axle is 0.

Why is it warmer near the equator than near the poles?

Does 59feet = 170000 meters

The chemical reaction that causes chromium to corrode in air is given by 4Cr+3O2→2Cr2O3 in which at 298 K ΔH∘rxn = - 2256 kJ ΔS∘rxn = - 549.

Witch of the statements about water is true?