What evidence is there for liquid water under Europa's surface?
What will be an ideal response?
There are features on Europa that are similar to pressure ridges seen on ice floes on Earth. Chunks of ice that resemble icebergs have been seen to change position, indicating moving water under them. There is at least one region where the icy surface seems to have been pulled apart, with new material filling in.
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What do the size and shape of Widmanstätten patters indicate?
a. the age of the meteorite b. that the molten metal of the meteorite cooled very slowly c. the metallic content of the core of the meteorite d. the origination of the meteorite e. the number of organic compounds found within the meteorite
Adiabatic Processes: If 20.0 L of a monatomic ideal gas at a pressure of 100 kPa expands adiabatically until the volume doubles, what is the pressure in the gas at that point?
A. 31.5 kPa B. 50.0 kPa C. 200 kPa D. 317 kPa E. 400 kPa
The angular speed of the hour hand of a clock, in rad/s, is
A.
.B.
.C.
.D.
E.
The sunspot cycle is sometimes described as lasting 11 years, but others prefer to consider it as 22 years; explain the rationale
What will be an ideal response?