What is octet rule in short? The octet rule states that atoms tend to form compounds in ways that give them eight valence electrons and thus the electron configuration of a noble gas. An exception to an octet of electrons is in the case of the first noble gas, helium, which only has two valence […]
Why is there no chain reaction with u 238?
Why is there no chain reaction with u 238? However, it is fissionable by fast neutrons, and is fertile, meaning it can be transmuted to fissile plutonium-239. U cannot support a chain reaction because inelastic scattering reduces neutron energy below the range where fast fission of one or more next-generation nuclei is probable. Why U […]
How important are pets in your life?
How important are pets in your life? Pets are part of our everyday lives and part of our families. They provide us with companionship but also with emotional support, reduce our stress levels, sense of loneliness and help us to increase our social activities and add to a child’s self-esteem and positive emotional development. Do […]
How does a projectile launcher work?
How does a projectile launcher work? Launcher The Projectile Launcher is used to investigate important concepts in two- dimensional kinematics. A steel ball placed in the launch barrel can be projected for different launch velocities and launch angles. Upon setting the desired angle and range, the hand pump is then used to pressurize the system. […]
What is the resolving power of a compound microscope?
What is the resolving power of a compound microscope? The resolving power is the capacity of an instrument to resolve two points that are close together. The resolving power of a compound microscope is 0.25μm. How do you increase the magnification of a compound microscope? In order to increase the magnifying power of a compound… […]
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What is the best angle for air to glass transition?
What is the best angle for air to glass transition? 56.31° Can the Brewster’s angle occur at the interface from air to glass? The Brewster’s angle can occur at the air/glass interface because there are infinite ways that the incidentand refractive angle will add up to 90°. What will be the Brewster angle for a […]
What is egg drop experiment?
What is egg drop experiment? The Classic “Egg-Drop” experiment has been a standard in science instruction for many years. Essentially, students are asked to construct some type of container that will keep a raw egg from cracking when dropped from ever-increasing elevations. What happens during an egg drop? While at rest, the egg has potential […]
Why is methane the worst greenhouse gas?
Why is methane the worst greenhouse gas? The 20-year global warming potential of methane is 84. That is, over a 20-year period, it traps 84 times more heat per mass unit than carbon dioxide (CO2) and 32 times the effect when accounting for aerosol interactions. Which greenhouse gas traps the most heat? Methane. Methane, the […]
How much does an elephant eat in one day?
How much does an elephant eat in one day? Diet. Elephants eat roots, grasses, fruit, and bark. An adult elephant can consume up to 300 pounds of food in a single day. Which categories of goods are rival in consumption? There are four types of goods based on the characteristics of rival in consumption and […]