What has the least density? The first chemical element with the lowest density is Hydrogen and the highest density is Osmium. What is the lightest strongest metal? Magnesium Which metal is less dense water? lithium, sodium and potassium are less dense than water so they float on the surface of the water. the metals move […]
What is the purpose of theory in research?
What is the purpose of theory in research? Theories are formulated to explain, predict, and understand phenomena and, in many cases, to challenge and extend existing knowledge within the limits of critical bounding assumptions. The theoretical framework is the structure that can hold or support a theory of a research study. Why do we need […]
Why can velocity be negative but speed can t?
Why can velocity be negative but speed can t? 2 Answers. Remember that velocity and acceleration are vectors, they have a magnitude and direction. Speed, on the other hand, is a scalar quantity which only has magnitude. So yes, the negative sign indicates a slowing down. What does it mean when position is negative? In […]
How can I make my PowerPoint presentation attractive and easy to understand the content?
How can I make my PowerPoint presentation attractive and easy to understand the content? Design and Graphical Images Use design templates. Standardize position, colors, and styles. Include only necessary information. Limit the information to essentials. Content should be self-evident. Use colors that contrast and compliment. Too may slides can lose your audience. Keep the background […]
Is ammonium hydroxide harmful to humans?
Is ammonium hydroxide harmful to humans? contact can severely irritate and burn the skin and eyes leading to eye damage. ► Exposure can irritate the eyes, nose and throat. ► Inhaling Ammonium Hydroxide can irritate the lungs. Higher exposures may cause a build-up of fluid in the lungs (pulmonary edema), a medical emergency. Is ammonium […]
Where is the tropical zone?
Where is the tropical zone? The tropics are regions of the Earth that lie roughly in the middle of the globe. The tropics between the latitude lines of the Tropic of Cancer and the Tropic of Capricorn. The tropics include the Equator and parts of North America, South America, Africa, Asia, and Australia. Which zones […]
What are the 2 types of operating system?
What are the 2 types of operating system? What are the types of an Operating System? Batch Operating System. In a Batch Operating System, the similar jobs are grouped together into batches with the help of some operator and these batches are executed one by one. Time-Sharing Operating System. Distributed Operating System. Embedded Operating System. […]
What is the role of thin film interference?
What is the role of thin film interference? Thin-film interference explains the multiple colors seen in light reflected from soap bubbles and oil films on water. It is also the mechanism behind the action of antireflection coatings used on glasses and camera lenses. Why does the pattern of colors repeat in a thin soap film? […]
What is an example of a phasic receptor?
What is an example of a phasic receptor? Examples of such tonic receptors are pain receptors, joint capsule, and muscle spindle. A phasic receptor is a sensory receptor that adapts rapidly to a stimulus. An example of a phasic receptor is the Pacinian corpuscle. What is a rapidly adapting receptor? Rapidly adapting receptors (RARs) occur […]
Who is the rightful owner of the title Father of calculus?
Who is the rightful owner of the title Father of calculus? Gottfried Wilhelm Leibniz Who is the true father of calculus? Gottfried Leibniz Who invented limits? Englishman Sir Issac Newton and German Gottfried Wilhelm von Leibniz independently developed the general principles of calculus (of which the theory of limits is an important part) in the […]