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What does rad stand for in radiation measurement?
It doesn't "stand" for anything*rad stands for 'radiation absorbed dose'* The rad is an obsolete unit of measure. It is not an abbreviation.According to Anwers.com, it is a "unit of energy absorbed from ionizing radiation, equal to 100 ergs per gram or 0.01 joules per kilogram of irradiated material. It has been replaced as a standard scientific unit by the gray."The gray is the official SI unit equal to one joule per kilogram.
What transfers thermal energy through space?
There are three mechanisms by which thermal energy (heat) is transferred through space: conduction, convection, and radiation.1Radiation is the transfer of heat energy through empty space. All objects with a temperature above absolute zero radiate energy at a rate equal to their emissivity multiplied by the rate at which energy would radiate from them if they were a black body. No medium is necessary for radiation to occur; radiation works even in and through a perfect vacuum. The energy from the Sun travels through the vacuum of space before warming the earth. Also, the only way that energy can leave earth is by being radiated to space.The transfer of thermal energy through space is called Radiation
When an object covers equal distances in equal amount of time is?
When an object travels covers equal distances in equal amount of time it can be said that it is traveling with constant speed. speed = distance/time. Unit of speed is m/sec. speed is a scalar quantity.
How fast does the earth orbit the sun in kilometers seconds?
The average speed of the earth in orbit is around 30 km/sec or 108,000 km/h. The planet moves faster when it's closer to the sun and slower when it's further away, sweeping out equal areas in equal time.
What happens when light strikes a opaque object?
All the light is absorbed, except that portion of the spectrum matching the object's color. That particular bandwidth is reflected. Hence a yellow object appears yellow, and a blue object appears blue. Black objects absorb light without reflecting any, while white objects reflect almost all the visible light which strikes them. The object may then emit the absorbed energy in the infrared spectrum (heat).
What must be equal to the amount of sunlight reflected plus the amout absorbed?
The amount of sunlight reflected plus the amount absorbed must be equal to the amount of sunlight that hits the surface (incident sunlight) in order to account for all the incoming solar radiation.
What is a kilogray?
A unit of absorbed energy from ionising radiation equal to one thousand grays. A gray (Gy) is the SI unit of absorbed radiation dose of ionising radiation, defined as the absorption of one joule of ionising radiation by one kilogram of matter (usually human tissue).
What is the amount of energy given off or absorbed when electrons change energy states equal to?
The amount of energy given off or absorbed when electrons change energy states is equal to the difference in energy levels between the initial and final states of the electron. This energy is typically released or absorbed in the form of electromagnetic radiation, such as light.
What radiation balance is it usually on?
The Earth's radiation balance is typically in equilibrium, with the amount of incoming solar radiation approximately equal to the amount of outgoing thermal radiation. This balance is important for maintaining stable temperatures on Earth and plays a key role in regulating the planet's climate. disruptions to this balance can lead to climate change.
When matter absorbs a photon what is the relationship between the energy of the matter before and after the absorpion and the frequency and the wavelength of the radiation absorbed?
When matter absorbs a photon, the energy of the matter increases by an amount equal to the energy of the absorbed photon. The frequency and wavelength of the absorbed radiation depend on the energy of the photon and are inversely related - higher energy photons have higher frequencies and shorter wavelengths.
What can be said of the amount of energy that an electron absorbs when it is excited compared to the amount of energy that it releases when it returns to ground state?
When an electron is excited, it absorbs a specific amount of energy to move to a higher energy state. When it returns to its ground state, it releases this absorbed energy in the form of electromagnetic radiation. The energy released is equal to the energy absorbed during excitation, following the principle of conservation of energy.
How much is a rad of radiation?
A rad is a unit of absorbed radiation dose, but it is not commonly used anymore. The International System of Units now uses the gray (Gy) as the standard unit for absorbed radiation dose. 1 rad is equal to 0.01 gray.
Is the balance between incoming radiation and outgoing heat called radiation balance?
Is the equation of incoming and outgoing thermal radiation. Incoming radiation or solar radiation is called short wave and the radiation emitted from the earths surface and atmosphere (heat radiation) is in the infra -red spectrum and is known as long wave radiation.
When the amount of energy received from the sun and the amount of energy returned to space are about equal it is called what?
When the amount of energy received from the sun and the amount of energy returned to space are about equal, it is called energy balance or radiative equilibrium. This balance helps maintain the Earth's overall temperature and climate.
When the amount of energy received from the sun and the amount of energy returned to space are about equal is called what?
radiation balance
When the amount of energy receive from the sun and the amount of energy return to space are about equal it is called what?
radiation balance
What is it called when the amount of energy received from the sun and the amount of energy returned to space are about equal called?
radiation balance
