Why does a snowflake have 6 sides? All snowflakes contain six sides or points owing to the way in which they form. The molecules in ice crystals join to one another in a hexagonal structure, an arrangement which allows water molecules – each with one oxygen and two hydrogen atoms – to form together in […]
Is Rain high or low pressure?
Is Rain high or low pressure? Generally high pressure means fair weather, and low pressure means rain. Is low pressure hot or cold? Cold, dense air squeezes its way through the warmer, less-dense air, and lifts the warm air. Because air is lifted instead of being pressed down, the movement of a cold front through […]
How can we reduce natural hazards?
How can we reduce natural hazards? Awareness, education, preparedness, and prediction and warning systems can reduce the disruptive impacts of a natural disaster on communities. Mitigation measures such as adoption of zoning, land-use practices, and building codes are needed, however, to prevent or reduce actual damage from hazards. What precautions should we take to prevent […]
How do policy makers define poverty?
How do policy makers define poverty? poverty. the inability to obtain goods or services understood as sufficient for social defined by minimal needs. Why did Critics call for welfare reform? Critics charge that the welfare program created an underclass that transmitted poverty from one generation to another. One of Bill Clinton’s slogans during his 1992 […]
What is the difference between radiation and heat transfer by radiation?
What is the difference between radiation and heat transfer by radiation? Convection is the transfer of energy by movement of a medium, whereas radiation is the transfer of energy by, well, thermal radiation. Conduction also requires a medium, but, again, it is a fundamentally different mechanism than either convection or radiation; in this case it […]
What is a very big number?
What happens when air is removed from a water bottle?
How much energy is in the atmosphere?
How much energy is in the atmosphere? On average, 340 watts per square meter of solar energy arrives at the top of the atmosphere. Earth returns an equal amount of energy back to space by reflecting some incoming light and by radiating heat (thermal infrared energy). How does energy transfer in a TV? A television […]
Has there ever been a death at Cedar Point?
Has there ever been a death at Cedar Point? On August 13, 2015, a 45-year-old man was killed by the roller coaster after going into the ride’s restricted area to retrieve a dropped cell phone. He was struck in the back of the head by a passing train. Park emergency crews attempted to revive him, […]
What is the formula for free fall acceleration?
What is the formula for free fall acceleration? Free fall means that an object is falling freely with no forces acting upon it except gravity, a defined constant, g = -9.8 m/s2. The distance the object falls, or height, h, is 1/2 gravity x the square of the time falling. What is the acceleration of […]