The earth rotates on its axis at an angular speed of 1 rev/24 h.
Find the linear speed (in km/h)
(a) Of Singapore which is nearly on the equator.
(b) Of Houston which is approximately 30.0° north latitude.
(c) Of Minneapolis which is approximately 45.0° north latitude.
(d) Of Anchorage which is approximately 60.0° north latitude.