Solid State Physics

Baking soda is a crystalline solid. It forms a regular repeating pattern of atoms or molecules in a three-dimensional structure.

semiconductors

1958. It came into common use in the early 1970s.

As Francium is an Alkaline metal it has a lone electron in an outermost S orbital. Therefore the atom is perfectly spherical.

It's a gas-tube laser in which the lasing tube is charged with a gas mixture containing about 20 percent carbon dioxide, with some nitrogen, hydrogen and helium mixed in. These are very powerful industrial lasers that operate in the infrared frequency range, and are used for cutting.

the phenomenon of refraction. When light travels from one medium (such as air) to another medium with a different optical density (such as water), it changes speed and direction, causing the light rays to bend. This bending of light can make the stick appear broken or bent at the water's surface.

This cannot be calculated without knowing the aerodynamics of the plane. Since air is fluid, it is capible of going around the plane, and will not nessicarily move the plane 50 mph E.

If the wind holds steady (as in, not a single gust but a continuous wind) it will eventually push the plane up to 50 mph E.

At that time the pane will have a speed of 403.14 mph going 82.875 degrees (with 90 degrees being due north).

according to pascals law pressure is transmitted equally and undiminised in all direction.

So Force=pressure x area.

such machines one side area is small and other side is large. A small force is applied to small area and according to the equation it produces large force.,

It will certainly not stay cold as long as if it were capped.

Field Effect Transistors (both JFET & MOSFET) are unipolar because they use only one type of current carrier (electrons in N-channel or holes in P-channel), unlike bipolar transistors (both junction & the obsolete point contact) which always use both types of current carriers.

Depends on what is between the potential difference (ie, the voltage).

If it's an evaculated tube, and the electrons are travelling between the anode and the cathode without much interference, then then a higher voltage will mean that the electrons arrive with more kinetic energy -- ie, increased velocity.

However, if there's a wire between the two voltages, then the drift velocity of the electrons (which is pretty slow to begin with) does not increase, but only the number of electrons that are drifting.

germanium

When heated, amorphous solids do not have a sharp melting point and soften gradually over a range of temperatures, while crystalline solids have a specific melting point at which they transition from a solid to a liquid state. Amorphous solids lack a regular and repeating atomic structure, leading to their softening behavior, whereas crystalline solids have a well-defined and orderly atomic arrangement that allows for a distinct melting point.

To be forward biased any diode (e.g. vacuum tube, crystal, junction, point contact) must have its relative anode voltage more positive than its cathode voltage.

If the absolute anode voltage is negative but the cathode voltage is even more negative, then the diode will be forward biased. But as your question made no mention at all of the cathode, I cannot tell if this is the case or not.

It does not alter the atomic structure of the silicon at all, what it alters is the balance of bulk valence band and conduction band electrons in the crystal of silicon thus altering its bulk conductivity.

Paper and straw help cushion the china during shipping, absorbing lesser shocks so that they are not transmitted to the china and cause it to fracture. An additional reason for wrapping it in paper can to protect other china pieces if on piece breaks; the paper it is wrapped in helps keep pieces of a broken piece from shifting around and scratching or breaking other pieces.

The units of capacitance are called farads. A one farad capacitor is a capacitor with 1 volt potential difference with 1 coulomb of charge on the capacitor, C = Q/V or Q=CV

So the charge held on your capacitor is

Q = CV = 9Volts * 0.40*10-6Farads=3.6*10-6 Coulombs

I figure anywhere between 20 and 100 N/m. Someone correct me if I'm wrong on the answer, but no one will answer this with an example of the force it would take, only formulas.

If you think about it, 1 newton would take you about 2-5 cm, which would equate to [k=F/x] k=1N/0.02, resulting in k=50 N/m. That equation is saying if you would take a meter-long pen spring, it would take 50 neutons to compress it completely. Hope this helps.

- Fellow physics student

”be microchip made computer smaller; They could be used in more places.” -apex

No, nonmetals tend to be insulators. Some (e.g. carbon) are poor conductors.

Semiconductors (e.g. silicon and germanium) in their pure form are insulators but when doped with the right impurities can conduct as good as metals. This is why they are called semiconductors.

Pumice does not sink.

Bell Labs researchers were unsatisfied with the low reliably, high power usage, and large size of the vacuum tubes that needed to be used in the telephone switching and long distance trunk systems of the 1940s.

In March 1983 US President Ronald Reagan put forward his Strategic

Defense Initiative, more popularly known as Star Wars which was to act

as an antimissle defense shield.