Question: (a) What is the angular speed ar about the polar axis of a point on Earth's surface at latitude 40 N? (Earth rotates about that

(a) What is the angular speed ar about the polar axis of a point on Earth's surface at latitude 40° N? (Earth rotates about that axis.)

(b) What is the linear speed y of the point? What are?

(c) w and

(d) v for a point at the equator?

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