At the bottom of the thermometer and it slowly goes up as the temperature changes
Answer:
1.....
2.....
Explanation:
1. For the elements in column 1,2 and 13-18 the atoms in the same column have the same amount of outermost electrons, called valence electrons. Atoms in column 1 (H, Li and Na for example) have 1 valence electron.
2. Electron affinity increases from left to right across the periodic table. This is caused by the decrease in atomic radius. As we already explained, moving from left to right across a period, atoms become smaller and smaller as the atomic number increases.
Answer:
The lowest mass that an object can have to be considered a star is 0.08 solar masses.
Explanation:
A star is get when it reaches the necessary temperature in its core to nuclear reaction began.
A Nuclear reaction is the fusion of lighter elements into heavier elements.
In stars there is an equilibrium between two forces, the force of gravity in the inward direction due to its own mass and the radiation pressure in the upward direction as a consequence of the nuclear reaction in its core, which is known as hydrostatic equilibrium.
Therefore, the mass of the star must be enough to the force of gravity act in the inward direction, which leads to the increase in pressure, density and of course temperature in the core, allowing the nuclear reaction to begin.
Hence, the lowest mass that an object can have to be consider a star is 0.08 solar masses.
The answer is a Telescopic gauge.
A Telescopic gauge is a tow point transfer gauge that can be used with an outside micrometre to measure inside diameter.
What is Telescopic gauge?
- Telescoping gauges are indirect measuring devices used to determine the internal diameter of a bore, hole, groove, slot, or other similar structure.
- A handle, two telescopic rods, and a locking screw make up this T-shaped tool.
- Telescopic gauges with two plunging telescopic rods are available, as are those with only one.
- Telescopic gauges are used to measure the internal diameter of a bore, hole, or groove with a diameter of up to 150mm (6′′), such as camshaft bearings or connecting rod bore bearings. They are primarily used by mechanics to measure the bore size of a crankcase in an engine with moving pistons.
To learn more about Telescopic gauges visit: brainly.com/question/14006696?
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Answer:
A. 1.73 x 10^5 J
Explanation:
The internal energy of a gas is related to the average speed of the molecules of the gas. In fact:
- The internal energy, U, is directly proportional to the temperature of the gas, T, according to
- The temperature of the gas, T, is proportional to the square of the average speed of the molecules, v, according to
where both terms represent the average kinetic energy of the molecules.
- Therefore, we can conclude that the higher the internal energy, the faster the average speed of the molecules: among the choices given, the sample with highest internal energy is sample A.
