Question

Write 'T for True or 'F' for False :-
10
(a) The speed of rotation on the equator is 1674 km per hour
(b) There are 365/366 days in the National Calendar.​

Answer 1

Answer:

a) false

b),true

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Answer 2

Answer:

(a)True

(b)True

Explanation:

(a) Earth rotates once every 23h 56m (23.933h), so at the equator where Earth's circumference is 2ΠR = 2x3. 14x6378 km = 40,000 km it has to travel at a speed of Vrot = 40000km/23.933h = 1,674 km/hr.

(b) A year that is not a leap year is a common year. For example, in the Gregorian calendar, each leap year has 366 days instead of 365, by extending February to 29 days rather than the common 28.

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