Cart a, with a mass of 0.4 kg, travels on a horizontal air track at 6 m/s and hits cart b, which has a mass of 0.8 kg and is initially at rest. after the collision the carts stick together, and the center of mass of the two cart system has a kinetic energy of
a. 3.5 j b. 7.2 j c. 2.4 j d 1.2 je. 4.8 j
an aquifer is an underground layer of water-bearing permeable rock, rock fractures or unconsolidated materials. groundwater can be extracted using a water well. the study of water flow in aquifers and the characterization of aquifers is called hydro-geology.
below is an image of an aquifer:
the parts of the image that are circled and show cracks of water are called aquifers. hope this !
when an object is revolving in circular path then its velocity is always along the tangent of the circular path
so while moving in circular path if the string is break then due to law of inertia the object will always move in the direction of initial motion
as we know that as per law of inertia if an object will not change its state of motion or state of rest until some external force will act on it.
so here also the object will move along its tangential direction once the string will break
so here the correct path will be
we know that displacement is the length of straight line joining the initial position with the final position. as lisa walks around the block once, she comes back to her initial position here she started from, hence the initial and position of lisa is same. so her displacement is zero.
we know that distance is the length of the actual path followed by object between initial and final position. as lisa walks around the block once, she travels 1 mile. hence the distance traveled by lisa is 1 mile.
displacement : 0
distance : 1 mile
it is talking about how from a different perspective things look different.
that picture should .