What makes hydrogen peroxide and water different? Its physical properties are very similar to those of water, except that it is 40% denser. The main difference between hydrogen peroxide and water, however, is in its chemical behaviour. The single bond between the two oxygen atoms is weak, so that H2O2 readily fragments into either H […]
What is an example of sound energy?
What is an example of sound energy? Sound energy is produced when an object vibrates. The sound vibrations cause waves of pressure that travel through a medium, such as air, water, wood or metal. What is heat energy in simple words? Heat energy is the result of the movement of tiny particles called atoms, molecules […]
What material does not burn in fire?
What material does not burn in fire? Wherever any substance is put in fire it burns and changes into ash. But asbestos is one such material that does not burn in fire. That is why the fireman wear clothes made from asbestos when they enter the burning house. In fact their clothes, shoes, gloves, helmets […]
How the resistance of a wire depends on its length?
How the resistance of a wire depends on its length? The relationship between resistance and wire length is proportional . The resistance of a thin wire is greater than the resistance of a thick wire because a thin wire has fewer electrons to carry the current. The relationship between resistance and the area of the […]
How do you calculate H+ concentration?
How do you calculate H+ concentration? Key Concepts The hydrogen ion concentration in a solution, [H+], in mol L-1, can be calculated if the pH of the solution is known. pH is defined as the negative logarithm (to base 10) of the hydrogen ion concentration in mol L-1 pH = -log10[H+] [H+] in mol L-1 […]
What is the SI unit of Q charge?
What is the SI unit of Q charge? coulomb Why are MRIs so noisy? Why Is an MRI So Loud? An MRI machine creates loud noises because of the technology behind it. MRI uses an incredibly strong magnetic field to create images of your body’s tissues. Many scanners have magnets that produce fields as much […]
How do you check a buck converter?
How do you check a buck converter? Step-loads with rise/fall times of 200 ~ 500nsec will be sufficient to test the stability of most buck converters. Figure 2 shows a simple tool to generate fast load steps to a converter : A MOSFET driven by a pulse generator switches a load resistor on and off […]
What is the charge on 1 kg of protons?
What is the charge on 1 kg of protons? 95698925 coulombs What is the charge of 1000 electrons? A charge of 1000 electrons is 1.6×10-16 coulombs. One coulomb is 6.242×1018 elementary charges, such as electrons. What is the charge of 1 billion electrons? A billion electrons thus have a total charge of about . One […]
What are the 7 types of lines?
What are the 7 types of lines? There are many types of lines: thick, thin, horizontal, vertical, zigzag, diagonal, curly, curved, spiral, etc. and are often very expressive. What are the 5 types of lines in art? There are 5 main types of lines in art: vertical lines, horizontal lines, diagonal lines, zigzag lines, and […]
What produces a low pitch?
What produces a low pitch? Volume is dependent on how hard the air is pushed through. Sound travels more slowly than light. Sound waves travel at the same speed, but vibrate in different ways. Some vibrate quickly and have a high frequency or pitch, while others vibrate slowly and give a lower pitch. What produces […]