173.99cm multiply 68.5 x 2.54 always use that number when converting inches to cm
Answer:
A
Explanation:
if the earth slows down then that will give more time to the sun meaning days/nights will be longer
False, pepsin and hydrochloric acid
Answer:
When a body moves in a circle with constant speed , it is said to be in uniform circular motion .
Explanation:
- When an object moves in a circular path , its direction changes at each point .
- This change in direction result in change of velocity (velocity is vector quantity which changes if direction of the object change) .However speed do not change (it is scalar quantity , not affected by Direction)
- The Change in velocity produce acceleration ( a = v - u)
- Hence The object always produce acceleration in uniform circular motion .So, Some force (centripetal force) is needed to keep the object in circular motion.
