Why can I make a sound on my clarinet? Top teeth on mouthpiece, lip cushion, reed on lower lip, jaw pointed down, slight smile formation allowing the reed to vibrate, which causes the sound. Use perhaps a slightly more resistant reed until the sound comes more easily. If you are playing correctly you will feel […]
Why do we wear gold ornaments with silver?
Why do we wear gold ornaments with silver? Platinum, gold and silver are used to make jewellery because the metals used in jewellery are always be chosen on the basis of its reactivity. They are highly lustrous metals which are resistant to corrosion. They are highly malleable and ductile so can be transformed into any […]
Are all theories true?
Are all theories true? A theory will always remain a theory; a law will always remain a law. Both theories and laws could potentially be falsified by countervailing evidence. Theories and laws are also distinct from hypotheses. Unlike hypotheses, theories and laws may be simply referred to as scientific fact. What was Plato’s theory of […]
How does speed affect the Doppler effect?
How does speed affect the Doppler effect? The Doppler effect is observed whenever the speed of the source is moving slower than the speed of the waves. But if the source actually moves at the same speed as or faster than the wave itself can move, a different phenomenon is observed. The circular lines represent […]
In which situation will screening be used to separate a mixture?
In which situation will screening be used to separate a mixture? Explanation: When granular solids are separated out according to their size then this process of separation is known as screening. So, when a solid substance dissolves in a liquid then its molecules will dissociate into ions. Therefore, its particles cannot be separated out by […]
What is the purpose of a periscope?
What is the purpose of a periscope? Periscope, optical instrument used in land and sea warfare, submarine navigation, and elsewhere to enable an observer to see his surroundings while remaining under cover, behind armour, or submerged. What are the advantages of Periscope? 5 Benefits of Using Periscope: Increased Access to Guest Speakers. Allowing guest speakers […]
What 3 structures are found in both prokaryotic and eukaryotic cells?
What 3 structures are found in both prokaryotic and eukaryotic cells? Answer: The structures that are found in both eukaryotic and prokaryotic cell are- ribosomes, DNA, cytoplasm. Ribosomes are biomolecular complex, composed of RNA and protein and act as the site for protein synthesis in all the cells of the living organisms. What is difference […]
How do you classify organisms into domains?
How do you classify organisms into domains? Organisms can be classified into one of three domains based on differences in the sequences of nucleotides in the cell’s ribosomal RNAs (rRNA), the cell’s membrane lipid structure, and its sensitivity to antibiotics. The three domains are the Archaea, the Bacteria, and the Eukarya. What are reliable ways […]
What are the four stages of technological design?
What are the four stages of technological design? The four stages of technological design include identifying a need, designing and implementing a solution, and evaluating the solution. Which prototype is the least cost effective solution? The company needs to develop a prototype rocket which means that it should be developed soon and it should cost […]
How do you solve acceleration without time?
How do you solve acceleration without time? If the acceleration is constant, it is possible to find acceleration without time if we have the initial and final velocity of the object as well as the amount of displacement. The formula v2=u2+2as where v is the final velocity, u is the initial velocity, a is the […]