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 tall is a single story?

How tall is a single story? about 14 feet Which is taller One World Trade Center or twin towers? At the time of their completion, the Twin Towers—the original 1 World Trade Center (the North Tower), at 1,368 feet (417 m); and 2 World Trade Center (the South Tower), at 1,362 feet (415.1 m)—were the […]

How long does it take to walk 1 acre?

How long does it take to walk 1 acre? about three minutes How many football fields is 2 acres? One acre equals 43,560 square feet, so a football field is about 1.32 acres in size. So, to answer your question, there are . 75625 football fields per acre. How big is 30 acres in football […]

How does power come into a house?

How does power come into a house? Electricity is made at a generating station by huge generators. Generating stations can use wind, coal, natural gas, or water. The current is sent through transformers to increase the voltage to push the power long distances. Smaller transformers reduce the voltage again to make the power safe to […]

What do gas bubbles in lava form?

What do gas bubbles in lava form? Gas bubbles formed and rose to the surface of lava which flowed freely on the surface of a young Earth. As the lava gradually solidified to form rock, these bubbles were trapped inside, forming spaces inside the rock called vesicles. What makes some magma explosive? Explosive eruptions If […]

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