Why do we use displacement? It quantifies both the distance and direction of the net or total motion along a straight line from the initial position to the final position of the point trajectory. A displacement may be identified with the translation that maps the initial position to the final position. What’s the formula for […]
What height of water is supported by atmospheric pressure what height of mercury?
What height of water is supported by atmospheric pressure what height of mercury? 760 mm Why is water not used as barometric liquid? Solution. Water is not a suitable barometric liquid because: (i) The vapour pressure of water is high, so its vapours in the vacuum space will make the reading inaccurate. (ii) Water sticks […]
What are three types of LASERs?
What are three types of LASERs? Types of lasers – Solid state laser, Gas laser, Liquid laser & Semiconductor laser. What is radiation in laser? Laser radiation is an optical radiation that can either be visible or invisible. If the wavelength of a laser beam is 400-780nm (nanometres), the beam is visible to the human […]
What are the three domains into which organisms are classified?
What are the three domains into which organisms are classified? The three-domain system is a biological classification introduced by Carl Woese et al. in 1990 that divides cellular life forms into archaea, bacteria, and eukaryote domains. What are 3 reasons we classify organisms? Classification allows us to understand diversity better. It helps in the identification […]
What is the equivalent resistance between points A and B 2 points?
What is the equivalent resistance between points A and B 2 points? Answer. Rt=2+2+1=5 ohm. What is equivalent resistance in parallel? If the two resistances or impedances in parallel are equal and of the same value, then the total or equivalent resistance, RT is equal to half the value of one resistor. Which of the […]
What type of force is pushing a box?
Does sulfur break easily?
What is the minimum velocity needed to transport a cobble?
What is the minimum velocity needed to transport a cobble? At 10 cm per second [?] is eroded whilst would be deposited. Cobbles are upwards of 170cm per second. Deposition starts to occur at cm per second for particles of approximately 0.01mm in size. Boulders require the smallest velocity for deposition, at only cm per […]
Can Atom survive without electron?
Can Atom survive without electron? Electrically neutral atoms can exist with no electrons. So an atom can’t have no electrons as it, by definition has protons and to be neutral must have electrons. You can have an ion, such as a hydrogen ion (you might call it a proton). What would happen if an atom […]
Which statement best describes one way in which global winds affect weather and climate?
Which statement best describes one way in which global winds affect weather and climate? The correct answer is – B. Westerlies move warmer air toward the poles. The Westerlies are winds that move from the lower latitudes (thus from the warmer areas) towards the bigger latitudes (south and north towards the poles). What are the […]