Which of the following is an example for bad reflector of sound? Bad reflectors of sound – Thick curtains, thick carpets. Is asbestos a good reflector of sound? Asbestos insulations are very diversified. Asbestos applied in this manner provides for thermal insulation, fire protection, sound insulation, resistance to corrosion when metal surfaces are covered, and […]
What is relation between distance and displacement?
What is relation between distance and displacement? Distance is a scalar quantity that refers to “how much ground an object has covered” during its motion. Displacement is a vector quantity that refers to “how far out of place an object is”; it is the object’s overall change in position. What is literary displacement? In its […]
How do you classify matter?
How do you classify matter? Matter can be classified according to physical and chemical properties. Matter is anything that occupies space and has mass. The three states of matter are solid, liquid, and gas. A physical change involves the conversion of a substance from one state of matter to another, without changing its chemical composition. […]
What are the major source?
What are the major source? – The term “major source” means any stationary source or group of stationary sources located within a contiguous area and under common control that emits or has the potential to emit considering controls, in the aggregate, 10 tons per year or more of any hazardous air pollutant or 25 tons […]
Which age group has the lowest self esteem?
Which age group has the lowest self esteem? Self-esteem was lowest among young adults but increased throughout adulthood, peaking at age 60, before it started to decline. These results are reported in the latest issue of the Journal of Personality and Social Psychology, published by the American Psychological Association. How do you fix low self […]
How is batholith formed?
How is batholith formed? Despite sounding like something out of Harry Potter, a batholith is a type of igneous rock that forms when magma rises into the earth’s crust, but does not erupt onto the surface. What are Sills give an example? Answer: Such sills are known as transgressive, examples include the Whin Sill and […]
How does a mechanical wave move?
How does a mechanical wave move? A mechanical wave is a wave that is an oscillation of matter, and therefore transfers energy through a medium. Therefore, the oscillating material does not move far from its initial equilibrium position. Mechanical waves transport energy. This energy propagates in the same direction as the wave. Which wave has […]
Why do Acids burn?
Why do Acids burn? An acid is a substance that separates readily into charged hydrogen ions (H+). These charged ions undergo catalytic reactions named amide/ester hydrolysis, that eventually cause the destruction of proteins and lipids in biological tissue, and therefore the chemical burn. What acid can burn through anything? A common corrosive acid is hydrochloric […]
Which angular velocity is greater a second hand minute hand and hour hand of a clock?
Why is being precise important?
Why is being precise important? Precision in scientific investigations is important in order to ensure we are getting the correct results. Since we typically use models or samples to represent something much bigger, small errors may be magnified into large errors during the experiment. Precision is also important in order to ensure our safety. What […]