Answer: a
Explanation: because i said so
Elastic collisions<span> are </span>collisions<span> in which both momentum and kinetic energy are conserved. I think the correct answer from the choices listed above is option A. Two </span><span>glass marbles bounce off each other is an example of an elastic collision. Hope this answers the question.</span>
Answer:
ω' = 2.5 rad/s
Explanation:
mass of cockroach, m = 4 kg
mass of disk, M = 6 kg
Radius of disc= R
initial angular velocity, ω = 2 rad/s
Let the final angular velocity is ω'
As no external torque is applied, so the angular momentum is constant.
Angular momentum = Moment of inertia x angular velocity
I ω = I' ω'
ω' = 2.5 rad/s
Answer:
c) The concepts of quantitative and qualitative are not related at all.
Explanation:
Quantitative properties are those which can be compared by its magnitude only
so it is always in relative terms like we can compare them by which one is larger and which one is smaller
Qualitative terms are those which will compare the quality of two like which one is better in terms of given property
so here we can say that quantitative and qualitative terms is not comparable
hence correct answer will be
c) The concepts of quantitative and qualitative are not related at all.
<h2>
Answer: under pressure rises above the aquifer level</h2>
Explanation:
An artesian system is one that connects with an accumulation of water (aquifer) whose surface or level is above the surface of the system or well.
In other words, the upper limit of the aquifer is higher than the opening through which the liquid flows in the artesian well. This has the advantage that the water spreads without needing to be pumped.
It should be noted that its name comes from the region of <u>Artois</u>, France, where in 1126 the oldest well in Europe was drilled with these characteristics.
Therefore:
<h2>
An artesian system is present when groundwater <u>
under pressure rises above the aquifer level.</u></h2>
