The roughness of a metal surface is typically measured in units of micrometers (µm), or sometimes in Ra values as per ISO standards. These metrics help quantify the deviations from an ideal surface profile, indicating the smoothness of the metal surface. Advanced techniques like profilometers or interferometers are commonly used for precise measurements.
Surface smoothness is typically measured in Ra (Average Roughness) or RMS (Root Mean Square) for engineering applications. These measurements give an indication of the fine details of a surface profile and are expressed in micrometers or inches. The smaller the Ra or RMS value, the smoother the surface.
The value for acceleration of gravity was discovered by Sir Isaac Newton in the late 17th century. He determined that the acceleration due to gravity near the surface of the Earth is approximately 9.81 m/s^2.
Electrons are emitted from a metal surface when the energy of the incident photons is great enough to overcome the work function of the metal. This minimum energy required is equivalent to a certain threshold frequency, known as the threshold frequency. Electrons can only be emitted when the frequency of the incident radiation is greater than this threshold frequency because lower frequency photons do not possess enough energy to overcome the work function and release electrons from the metal surface.
A change in the material of the container holding the mercury does not cause the height of the mercury column to vary. The height of the mercury column is determined by the atmospheric pressure acting on the surface of the mercury in the container.
The gravitational acceleration, g, decreases with altitude according to the inverse square law. At an altitude equal to the radius of the Earth (about 6371 km), the value of g would reduce to half of its surface value. This is because the gravitational attraction between the Earth and an object weakens as the distance between them increases.
Surface smoothness is typically measured in Ra (Average Roughness) or RMS (Root Mean Square) for engineering applications. These measurements give an indication of the fine details of a surface profile and are expressed in micrometers or inches. The smaller the Ra or RMS value, the smoother the surface.
Metal value is determined by the purity of the metal. It is a commodity whose price depends on supply and demand.
If you buy a coin made of gold or silver, its value is usually determined by the weight of the metal.
Value is determined by the demand and the supply
The value of gold was originally determined by its rarity, durability, and malleability. Over time, it became a standard form of currency due to its intrinsic value as a precious metal and its usefulness for making jewelry and other goods. Today, the value of gold is determined by market demand and supply dynamics, as well as factors such as geopolitical events and economic trends.
Yes, gold is considered an expensive metal due to its scarcity, desirability, and various industrial and jewelry uses. Its value is determined by factors such as demand, economic conditions, and global events.
Yes, that is true. This minimum frequency is called the threshold frequency and is determined by the work function of the material. Photons with frequencies lower than the threshold frequency do not carry enough energy to eject electrons from the metal surface, even if the intensity of light is high.
according to the Mathiessan's rule, the overalll temp dependant mobility is determined by the lattice vibration (phonon) scattering limited mobility (µL)and scattering by impurities( µI)... as 1/µ=1/µL+ 1/µI....... the lowest value among these two determines the overall mobility... so if the value of µL is low, it means the metal is pure...
The value of a polynomial is determined by that of the variable.
A: A resistor size is determined by the usage or its power dissipation. the bigger the size the more power it can dissipate due to the extra surface. SIZE is a function of power dissipation and has nothing to do with its value
1956 is a common date for Franklin halves so unless it is in top condition its value will be determined mostly by its metal content. Franklin halves contain about 1/3 of a troy ounce of silver so their minimum value will be about 1/3 of the metal's current price, which changes every day.
It is a determined value or an estimate.