n ecological terms, the carrying capacity of an ecosystem is the size of the population that can be supported indefinitely upon the available resources and services of that ecosystem. Living within the limits of an ecosystem depends on three factors:
<span>the amount of resources available in the ecosystem,the size of the population, and<span>the amount of resources each individual is consuming.</span></span>
Answer:
A 2 N force pulling and a 10 N force pulling left while a 12N force pulls right.
Answer:
Explanation:
Given:
- area of piston on the smaller side of hydraulic lift,
- area of piston on the larger side of hydraulic lift,
- Weight of the engine on the larger side,
Now, using Pascal's law which state that the pressure change in at any point in a confined continuum of an incompressible fluid is transmitted throughout the fluid at its each point.
is the required effort force.
centripetal acceleration always points towards the center of the circular path and velocity of object in circular motion always points towards the tangent on the the circle in this way centripetal acceleration and velocity are perpendicular to each other and the dot product of perpendicular vectors is always zero,
therefore v•a=vacosα...........(1)
here α is angle between centripetal acceleration and velocity which is 90
therfore,
From equation (1)
v.a= vacos90
v.a=vax0..............(because cos90=0)
v.a=0 m^2
centripetal acceleration vector points towards center it means it point towards inwards direction, so it lies along the radius vector,and radius vector points towards outward direction of the circle in this way centripetal acceleration and radius vector are in exact opposite direction so angle between them is 180 degree,
therefore r x a = rasin180
rxa=rax0 (because sin180=0)
rxa=0m^2/s^2 .
