Question

The time taken by the bob of a second's pendulum to move from one extreme position of its oscillation to its mean position is:  
(a) 2sec
(b) 1sec
(c) 0.5sec
(d) 0.1sec ​

Answer 1

Answer:

p to:

Elliptical orbits 

Old calculations 

New definition 

Solar system

Earth orbits the sun at an average of 92,955,807 miles (149,597,870 kilometers). The distance from Earthto the sun is also called an astronomical unit, or AU, which is used to measure distances throughout the solar system. 

Answer 2

0.5 second is the answer

hope its helpful