New york is roughly 3000 miles from seattle. when it is 10: 00 a. m. in seattle, it is 1: 00 p. m. in new york. using this information, estimate (a) the rotational speed of the surface of earth, (b) the circumference of earth, and (c) the radius of earth.

The time difference between New York and Seattle is 3 hours. Since there is a 24 hour time difference in the globe, the equation is expressed (3/24) * circumference of Earth = distance. Distance is equal to 3000 miles hence the circumference is equal to 24,000 miles. The radius then is equal to 24,000/2 pi or 12,000/ pi. The rotational speed is 3000 miles/ 3 hours or 1000 miles/hr.

Ithink the answer would be a