The Earth takes (365 and 1/4) days to orbit the sun. That's the length of our 'year'.
Since it's not really possible to make our calendar a quarter of a day longer every year, we make the calendar a <u><em>whole</em></u> day longer every 4 years.
So "Leap years" make up for the extra one-fourth day the Earth takes to orbit the sun.
Answer:
0.27 kg-m/s
Explanation:
i believe this is the correct answer
Answer:
Th spring is compressed by distance
Explanation:
Given:
Mass of block A=
Mass of block B=
variation of coefficient of friction with x,
spring constant=k
Distance covered on frictional surface=d
Taking block A and block B as a system , there is no external force acting on the system so the momentum can b conserved in horizontal direction.
Conservation Of Momentum
Now the blocks got stick together so both of them will pass through the frictional surface and will compress the spring together.
Work done by friction
Work done by spring
So applying Work Energy Theorem before the blocks moves to the frictional surface and when the blocks comes to rest by co pressing the spring by distance x.
Work done by all the spring +work done by friction=change in kinetic Energy of the system of blocks.
<span>There are various examples of land features formed by river erosion. One of them is Delta. A delta is formed when sediments are deposited in a place where a river flow into an ocean or lake and build up a land form. Thus, a river delta is a land form that occurs as a result of deposition of sediments carried by a river as the flow leaves its mouth and enter a slow moving or stagnant water.</span>