In physics and metrology, units are standards for measurement of physical quantities which facilitates the reproducibility of experimental results. Scientific systems of units were developed from weights and measures used long ago for commercial purposes.
According to Stefan, we can order events in time and there is a sense of time, distinguishing past, present and future. Is, therefore, time a vector? Similarly current has magnitude as well as direction. Is, therefore, current a vector?
Edwin was observing a yellow candle flame, his partner Harry claims that the light from the flame originates from excited sodium atoms in the flame. Edwin disagrees with Harry. According to Edwin because the flame is hot radiation, it must be thermal in origin. Who’s point is correct and why?
How to make an Android app Android app development is done by many IDEs but nowadays it is mainly done in Android Studio based on IntelliJ IDEA. You can download an android studio from the Official website. The current version is 2.3.3. Before installing Android Studio you have to install the latest version of JDK from Oracle …
James science teacher told him that space is full of vacuum. He asked his teacher than how light rays travel so long distances from stars and reach earth’s surface. Does not light needs matter to transfer energy? Can you explain the reason behind it?
Kinetic theory of gases Question: David told John that molecular speeds are comparable with his rifle bullet. John asked David if molecular speed comparable with rifle bullet speed then why a gas molecule with a strong odor takes a longer time than a bullet does to travel an equal distance? Explain. Assignment 1 on Kinetic …
Moving Charges and Magnetism: James Bond fire an electron gun in east direction to hit his target in the north direction. How could it be possible? Can you explain?
Nuclei Sam is interested to know two things about nucleus.1. Why is a neutron stable inside the nucleus but decay in 900 sec in free space? 2. It would be possible of creation of electron in free space? Can you give the answers? Particle in a Box A Unified Approach for Nuclear Structure
