Why can sound not travel through space? Sound does not travel at all in space. The vacuum of outer space has essentially zero air. Because sound is just vibrating air, space has no air to vibrate and therefore no sound. If you are sitting in a space ship and another space ship explodes, you would […]
How do we use infrared waves in everyday life?
How do we use infrared waves in everyday life? Infrared (IR) light is used by electrical heaters, cookers for cooking food, short-range communications like remote controls, optical fibres, security systems and thermal imaging cameras which detect people in the dark. The heating effect of IR can cause burns to the skin. Can deer see IR […]
Is Mid-Atlantic Ridge a normal fault?
Is Mid-Atlantic Ridge a normal fault? 2 Study Area: The Northern Mid‐Atlantic Ridge (12°N–36°N) The MAR is a slow spreading mid‐ocean ridge (2.5 cm/yr full rate) characterized by a ∼10–20 km wide axial valley bordered by normal faults and segmented by transform and nontransform offsets [e.g., Searle and Laughton, 1977; Spencer et al., 1997]. At […]
What are the difference between the three types of stress compression tension and shear?
What are the difference between the three types of stress compression tension and shear? Compression is the most common stress at convergent plate boundaries. Rocks that are pulled apart are under tension. Tension is the major type of stress at divergent plate boundaries. When forces are parallel but moving in opposite directions, the stress is […]
How do I identify an alluvial fan?
How do I identify an alluvial fan? Check the mouths of tributaries in larger valleys while in the field. Check topographic maps, and look for fan shaped elevation lines at the mouths of tributaries. Check soils maps for soils designated as “local alluvium.” What is the human impact of alluvial fan? Willful and continuous interference […]
What does a horizontal line indicate?
What does a horizontal line indicate? A horizontal line is commonly used in technical analysis to mark areas of support or resistance. A horizontal line runs parallel to the x-axis. In technical analysis, the horizontal line is typically drawn along a swing high, or a series of them, where each high in the series stopped […]
Is chromatin made of nucleosomes?
Is chromatin made of nucleosomes? Chromatin is a complex of DNA and proteins that forms chromosomes within the nucleus of eukaryotic cells. Under the microscope in its extended form, chromatin looks like beads on a string. The beads are called nucleosomes. Each nucleosome is composed of DNA wrapped around eight proteins called histones. What are […]
Why is a car crash inelastic?
Why is a car crash inelastic? Collisions are considered inelastic when kinetic energy is not conserved, but this could be from either a loss or gain or kinetic energy. For example, in an explosion-type collision, the kinetic energy increases. It is common for people to try to conserve energy in a collision. What happens in […]
Is deceleration a physics word?
Is deceleration a physics word? Rick suggests: “Deceleration” is not actually a term in physics. It is only an English word used in common speech, meaning “a decrease in speed.” The problem with this word is that some students mistake it to mean the same as negative acceleration. Is deceleration a vector quantity? In a […]
Which gases is not a greenhouse gas?
Which gases is not a greenhouse gas? Examples for greenhouse gases: Carbon dioxides, Methane, Chlorofluorocarbon, sulphur dioxide. Whereas oxygen, nitrogen and argon are not examples of greenhouse gases. Is nitrogen monoxide a greenhouse gas? The direct greenhouse gases are carbon dioxide (CO2), nitrous oxide (N2O), and methane (CH4). The indirect greenhouse gases are non-methane volatile […]