Lower Emissions Scenario
Higher Emissions
Scenario
Precipitation Change in Percent
20
-10
0
10
20
0
This map shows how climate change might affect precipitation patterns in the Great Plains of the United States by the end of this century.
Brown shows a decrease in precipitation, and blue shows an increase. The maps differ based on the predicted levels of greenhouse gas
emissions
The maps show that northern areas should get
Southern areas will likely get
To use these maps to prepare for natural disasters in the Great Plains,

Scientists use laser range-finding to measure the distance to the moon with great accuracy. a brief laser pulse is fired at the moon, then the time interval is measured until the "echo" is seen by a telescope. a laser beam spreads out as it travels because it diffracts through a circular exit as it leaves the laser. in order for the reflected light to be bright enough to detect, the laser spot on the moon must be no more than 1.0 km in diameter. staying within this diameter is accomplished by using a special large-diameter laser. part a if λ = 540nm , what is the minimum diameter of the circular opening from which the laser beam emerges? the earth-moon distance is 384,000 km. express your answer to two significant figures and include the appropriate units.

Convection occurs when thermal energy is transferred by the movement of

Wavelength of 125 meters is moving at a speed of 10 m/s. what is it's frequency?