Question 1120424
Monica stepped outside and began to think how fast she is moving even when she is standing still. 
Assume that the earth is a sphere with a radius of 3960 miles and Monica is at a latitude of 15degreesNorth.
What is Monica's speed due solely to the rotation of the earth?
Do you mean angular speed?  It's ~ 15 degs/hour
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What is Monica's speed due solely to the rotation of the earth? Assume for simplicity that the earth rotates around the sun in a circle of radius 93 million miles and that there are 365.25 days in a year.
You have to spec "speed with respect to what"
The sun?  Some other star?
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Combining the two speeds from above, give the range of speeds Monica is moving while standing still.
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Speed wrt to what?