Can we see wavelengths?

Can we see wavelengths? More simply, this range of wavelengths is called visible light. Typically, the human eye can detect wavelengths from 380 to 700 nanometers. Does white light exist? White light is actually made of all of the colours of the rainbow because it contains all wavelengths, and it is described as polychromatic light. […]

What is ∈ called?

What is ∈ called? The symbol ∈ indicates set membership and means “is an element of” so that the statement x∈A means that x is an element of the set A. In other words, x is one of the objects in the collection of (possibly many) objects in the set A. Which are the real […]

What is the largest type of tephra?

What is the largest type of tephra? All explosive volcanic eruptions generate tephra, fragments of rock that are produced when magma or or rock is explosively ejected. The largest fragments, blocks and bombs (>64 mm, 2.5 inches diameter), can be expelled with great force but are deposited near the eruptive vent. How do you protect […]

How long can I dive at 60 feet?

How long can I dive at 60 feet? The old guideline for safe ascent was 60 feet per minute, which has been revised down to to the current recommendation of 30fpm. The rate of ascent is more critical at shallower depths, so many might ascend faster at deeper depths and slow to 30fpm or less […]

Which factor does not affect photon?

Which factor does not affect photon? According to photon, they can not be affected by electric and magnetic fields. But EM waves are affected by external electric and magnetic fields. Why ? According to theory of properties of photon, they can not be affected by electric and magnetic fields and it is neutral. Is velocity […]

Which best describes the operational period briefing?

Which best describes the operational period briefing? 1 Answer. Explanation: The operations period briefing is the shift briefing that is conducted at the beginning of every operation period in order to present the incident action plan to tactical resource supervisor. Does an incident commander’s scope of authority come from the incident action plan? Explanation: An […]

How do you ensure confidentiality of participants in research?

How do you ensure confidentiality of participants in research? Researchers employ a number of methods to keep their subjects’ identity confidential. Foremost, they keep their records secure through the use of password protected files, encryption when sending information over the internet, and even old-fashioned locked doors and drawers. How do you maintain participants confidentiality A […]

What are the 3 functions of the cell wall?

What are the 3 functions of the cell wall? The main functions of the cell wall are to provide structure, support, and protection for the cell. The cell wall in plants is composed mainly of cellulose and contains three layers in many plants. The three layers are the middle lamella, primary cell wall, and secondary […]

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