Category: Physics

What is true about spheres? A Sphere is a three-dimensional ball-shaped object. In order to be a true sphere, an object must be completely symmetrical, meaning that any individual point on its surface will be exactly the same distance from the center as every other point. What is the exact circumference of a circle with […]

What funnels sound waves from outside the ear toward the middle ear? The purpose of the pinna is to catch sound waves, amplify them slightly, and funnel them down the ear canal to the tympanic membrane (eardrum) [3]. The tympanic membrane is a very thin structure that separates the outer ear canal from the middle […]

What are normal and anomalous Zeeman effect? The normal Zeeman effect occurs when there is no spin magnetic moment – states with zero spin are necessary. In singulett systems the spins of the electrons cancel each other i.e. add up to zero. This is called anomalous Zeeman Effect and can be observed in atomic transitions […]

How do we use microwaves in everyday life? Microwaves are widely used in modern technology, for example in point-to-point communication links, wireless networks, microwave radio relay networks, radar, satellite and spacecraft communication, medical diathermy and cancer treatment, remote sensing, radio astronomy, particle accelerators, spectroscopy, industrial … What are microwaves explain their properties? Properties of Microwaves […]

What type of energy is in a log? chemical energy What form of energy is possessed by charcoal before it is burned? Potential energy Chemical energy is energy stored in the bonds of atoms and molecules. Batteries, biomass, petroleum, natural gas, and coal are examples of chemical energy. Chemical energy is converted to thermal energy […]

Does hanging from a bar make you taller? While there is no dearth of physical activities which may help your child to grow taller, hanging from pull-up bars has certainly been the most recommended one. Making use of hanging bars is not only enjoyable for the kids but it also helps them maintain a good […]

What is the unit of root mean square velocity? The root mean square velocity is the square root of the average of the square of the velocity. As such, it has units of velocity. The reason we use the rms velocity instead of the average is that for a typical gas sample the net velocity […]

Which sample has the least number of atoms? argon gas How many atoms of sodium are in 2.00 mol na2o? There are 1.20⋅1024 atoms of sodium in 2 moles of sodium. How many atoms is in Na2O? 2 How many atoms are in 2 moles? after the 19th-century chemist Amedeo Avogadro, is the number we […]

How do I get a full outer shell? Atoms will try to gain or lose electrons in order to get a full valence (outer) shell. This is because an atom with a full valence shell is more stable. Atoms in the same group have similar properties because they have the same number of valence electrons. […]

What are the 3 main forms of energy? Potential energy is stored energy and the energy of position. Chemical energy is energy stored in the bonds of atoms and molecules. Mechanical energy is energy stored in objects by tension. Nuclear energy is energy stored in the nucleus of an atom—the energy that holds the nucleus […]