Why must a hypothesis be both testable and falsifiable? A Scientific Hypothesis Must Be Falsifiable A hypothesis may be testable, but even that isn’t enough for it to be a scientific hypothesis. In addition, it must be possible to show that the hypothesis is false if it really is false. Consider this statement: “There are […]
What are the main features of Rockwell hardness test?
What are the main features of Rockwell hardness test? The Rockwell hardness test is based on the measurement of the depth to which an indenter is forced by a heavy (major) load beyond the depth resulting from a previously applied preliminary (minor) load. What is the principle of Rockwell hardness test? Rockwell is a method […]
Which two solutions have similar solubilities at 40 C?
Which two solutions have similar solubilities at 40 C? Answer is: Na₂HAsO₄ and Na₂SO₄. 1) Solubility of NaCl (sodium chloride) at 40°C is 36.3 grams. Is the largest amount of solute that can dissolve? In most cases, only a certain maximum amount of solute can be dissolved in a given amount of solvent. This maximum […]
How is Crispr done?
How is Crispr done? The CRISPR-Cas9 system works similarly in the lab. Researchers create a small piece of RNA with a short “guide” sequence that attaches (binds) to a specific target sequence of DNA in a genome. The RNA also binds to the Cas9 enzyme. Why is Crispr so useful? CRISPR is an acronym for […]
What are the 10 steps of the rock cycle?
What are the 10 steps of the rock cycle? Metamorphic rocks underground melt to become magma. When a volcano erupts, magma flows out of it. (When magma is on the earth’s surface, it is called lava.)…When the particles are carried somewhere else, it is called erosion. Transportation. Deposition. Compaction & Cementation. What is the rock […]
What are the two features of plateau?
What are the two features of plateau? A plateau is a flat, elevated landform that rises sharply above the surrounding area on at least one side. Plateaus occur on every continent and take up a third of the Earths land. They are one of the four major landforms, along with mountains, plains, and hills. What […]
What are 2 examples of an element?
What are 2 examples of an element? Examples of elements include carbon, oxygen, hydrogen, gold, silver and iron. Each element is made up of just one type of atom. An atom is the smallest particle of an element that still characterizes the element. How do you find the Valency of 1 20? So, the first […]
How much does it cost to replace a condenser on a refrigerator?
How much does it cost to replace a condenser on a refrigerator? Average Refrigerator Repair Cost by Type of Repair Type of Repair Average Costs Condenser Coil Cleaning $60 – $100 Freezer $100 – $250 Fridge Door $100 – $700 Evaporator $120 – $200 Can a fridge break from being too full? Too much food […]
How low can I run my solar battery?
How low can I run my solar battery? To ensure longevity and to keep the lights on, never discharge batteries below 80% DOD—50% DOD or lower is ideal. All batteries require extra power reserves for days with low renewable energy production or higher electrical usage. Why does my inverter battery drain so fast? Excess usage […]
Has anyone been killed by a Tesla coil?
Has anyone been killed by a Tesla coil? Death. There is a long-standing rumour that Transtrom was electrocuted during one of his demonstrations when one of these long sparks reached the primary coil of the device, thus coupling and drawing enough current to kill him, making him one of only three people to have been […]