Answer:
SI unit of density - Kilogram per cubic metre (Kg/m³)
CGS unit of density - gram per cubic centimetre (g/cm³)
Answer:
a.) W/3, b.)2g/3 c.) (4gh/3)^0.5
Explanation:
First we have to find tension in terms of torque. To do that we have to find the moment of inertia of a rigid cylinder. From Wikipedia I get:
We also know the equation for torque. Let T be the tension, r be the distance, I is the moment of inertia and alpha is angular acceleration (ignore theta because it is perpendicular)
We can then substitute a/r for α
Therefore we get:
Isolating T and substitute the moment of inertia in for I we get
There are two known forces acting on the cylinder, gravity and tension. The sum of these two forces gives us mass times acceleration (Newton's second law)
This allows us to plug acceleration back into Newton's Second Law:
w = the weight
For part b, we solved in part a:
For part c, we use the conservation of energy. We know that the sum of energy in the system is zero.
Answer:
Hydrostatic pressure is the pressure exerted by an incompressible fluid (a liquid) at a given point, due to the weight of the fluid above it. Atmospheric pressure is the pressure exerted on a surface by the weight of the atmosphere (a compressible fluid) above it.
Explanation:
Answer:
Three Laws
Newton's Three Laws of Motion. Sir Isaac Newton: The Universal Law of Gravitation. Sir Isaac Newton and the Unification of Physics & Astronomy.
Explanation:
Answer:
True
Explanation:
The reproductive success of any species is the capability to produce their offspring per breeding lifetime or event.
Most of the species have to attract their partners by their physical capability and build up so that the mother can choose her partner in order to breed the best kind of off spring.
In the context, in case of deer, the size of the their antlers as well as behavior in herding is considered as the best chances for a successful reproduction to compete among the males and find their breeding mate.
Thus the answer is TRUE.