百度试题 结果1 题目4radiation/rays energy sent out in waves 以波的形式发出的能量 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
Figure 1. Most of the heat transfer from this fire to the observers is through infrared radiation. The visible light, although dramatic, transfers relatively little thermal energy. Convection transfers energy away from the observers as hot air rises, while conduction is negligibly slow here. Skin...
Radiation is Heat Transfer Energy by electromagnetic waves which carry energy away from the emitting object, a familiar source of Radiant Heat Energy for us is the Sun. Radiant Energy Reaches Earth from the Sun because the Sun is hotter than the Earth. Again the Heat Energy Transfer requ...
Moreover, the energy density of cosmic microwave background (CMB) photons was greater than or close to the energy density contained in the rest mass of baryonic matter, i.e., the primordial plasma was a radiated-dominated one and the adiabatic index was close to 4/3. The small density ...
It can damage living cells as it slows down and transfers its energy to the surrounding cells. The nature of gamma radiation makes it very dangerous to the people who deals with it. On the hand, there is a good benefit of usage of gamma ray in term of its applications in nuclear ...
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Transient pulses of 10‐MeV electrons from a linear accelerator were employed to generate stress waves in cylindrical rods of various materials. A piezoelectric accelerometer was used to determine the velocity of the induced stress wave and monitor the acceleration experienced by the end of the bar....
by the displaced atomic electrons combines to form a strong electromagnetic waveanalogousto thebow wavecaused by a power boat traveling faster than the speed of water waves or to theshock wave(sonic boom) produced by an airplane traveling faster than thespeed of soundin air. The phenomenon was...
Radiation therapy treatscancerby using high-energy waves to kill tumor cells. The goal is to destroy or damage the cancer without hurting too many healthy cells.It is given over a certain time period; it can be given around the time of surgery or chemotherapy. It can also be used to ease...
The energy distribution between different types of seismic waves produced by a source of longitudinal and transverse waves with an arbitrary radiation pattern in an elastic half-space is considered. With an appropriate choice of the angular distribution functions, this source can model an earthquake so...