the oil helps to slick the 2 surfces so the molecular surfaces easily slide

Delta

There are many kinds of inclined planes. Some examples are: driveways, slide, and a ramp. There are many kinds of inclined planes. Some examples are: driveways, slide, and a ramp.

Newtonian fluids are the most accurate way to measure the thickness of a liquid. Mathematics are involved in the calculations. The fluids are named for the great scientist Isaac Newton.

Lasers of different wavelengths can be purchased from many sites online, such as Lexel Laser, and Wicked Lasers. Be sure to check the legality of the lasers in your country or risk losing them at customs.

RF is used as an abbreviation of "radio frequency".

a clang

Yes, a capped, empty, plastic water bottle will almost always float in water. This is because the density of plastic water bottles (the 12- or 20-oz kind) is very low compared to water itself. As long as it is empty and capped, no water will enter the bottle while it is tipped over in the liquid, and so it will not be weighed down by the addition of any liquid.

Yes.

Zero

Dipole would set itself such that dipole moment vector is along the electric field vector

If you mean, "which wavelengths of light can the human eye detect," the human eye can see wavelengths from about 390 to 700 nanometers.

It is believed that it began at a specific point of time. Stephen Hawking discusses time as a vector. If it is, then there is a definite beginning, but not necessarily an end. The problem is, this is more of a philosophical or theological question and answer. Some years ago at Syracuse University at a lecture given by Niels Bohr I heard him say that Physics and Philosophy are different sides of the same coin. We may be able to pear into the sky, and see to a point that we believe may have been the origin, but that doesn't preclude something before that.

An atomic clock, or watch, is the most accurate clock available. It works by monitoring atomic resonance frequencies, which are much more consistent than any other method of keeping time, of cesium atoms, which always resonates at the same known frequency.