Category: Physics

Why H2O is polar and CO2 is nonpolar? Both CO2 and H2O have two polar bonds. However the dipoles in the linear CO2 molecule cancel each other out, meaning that the CO2 molecule is non-polar. The polar bonds in the bent H2O molecule result in a net dipole moment, so H2O is polar. Which is […]

Do charges move quickly through empty wires? It’s a common misconception that charges slow down as they go through the filament of a bulb because the filament is thinner than the wires in the rest of the circuit. Animation showing that the current is the same even if the wires have different thicknesses because the […]

What is the operational definition of love? 1) Love – To care, to support and guide others. 2) Population – the human reproduction. What is the operational definition of shyness? Shyness is the tendency to feel awkward, worried or tense during social encounters, especially with unfamiliar people. Some people’s shyness is so intense, however, that […]

Is 0 a rational number? Yes, 0 is a rational number. Since we know, a rational number can be expressed as p/q, where p and q are integers and q is not equal to zero. Thus, we can express 0 as p/q, where p is equal to zero and q is an integer. Is negative […]

What does a Maxwell-Boltzmann distribution illustrate? The Maxwell-Boltzmann distribution describes the distribution of speeds among the particles in a sample of gas at a given temperature. The distribution is often represented graphically, with particle speed on the x-axis and relative number of particles on the y-axis. Created by Sal Khan. How is Maxwell-Boltzmann distribution derived? […]

Which air can hold more water vapor? The maximum amount of water vapor that can be in the air depends on the air temperature. Warmer air can hold more water vapor within it. That’s why the muggiest days usually happen at the height of summer heat. But as the temperature goes down, the air can […]

What does Div F mean? We also have a physical interpretation of the divergence. If we again think of →F as the velocity field of a flowing fluid then div→F div F → represents the net rate of change of the mass of the fluid flowing from the point (x,y,z) ( x , y , […]

What percentage of carbon 14 remains after 2 half lives? 25 percent What is the use of carbon 14? Carbon-14, which is radioactive, is the isotope used in radiocarbon dating and radiolabeling. … medically important radioactive isotope is carbon-14, which is used in a breath test to detect the ulcer-causing bacteria Heliobacter pylori. How much […]

What are the basic stages of emotional development? Erikson’s Eight Stages of Development Learning Basic Trust Versus Basic Mistrust (Hope) Learning Autonomy Versus Shame (Will) Learning Initiative Versus Guilt (Purpose) Industry Versus Inferiority (Competence) Learning Identity Versus Identity Diffusion (Fidelity) Learning Intimacy Versus Isolation (Love) What are the emotional benefits of play? Emotional benefits of […]

How do humans get nitrogen for fertilizer? So they get the nitrogen they need from the soil where bacteria have converted it into a usable form. To grow more crops, people have been transforming nitrogen from the atmosphere into nitrogen fertilizers and then adding the fertilizers to the plants. What is nitrogen cycle diagram? The […]