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The repetition of properties of elements after regular intervals when arranged in increasing order of atomic number.
It is impossible to simultaneously determine the exact position and momentum of a particle. Mathematically: Δx⋅Δp≥h/4π
Molar mass of CO₂ = 12 + 2×16 = 44 g/mol Moles = 88 / 44 = 2 moles
· Mole: Amount of substance that contains as many entities as there are atoms in 12 g of carbon-12. · Avogadro's number (NA): 6.022×10236.022 \times 10^{23}6.022×1023 particles/mole.
The centre of mass (C.M.) can be defined as a point where the mass of a body is supposed to be concentrated.For the above listed geometric shapes having a uniform mass density, the centre of mass lies at their respec...
There will not be any change in the speed of the centre of mass of the given system. The child is running arbitrarily on a trolley that is moving forward with velocity . However, the running of the child will have n...
Moment of inertia gives the measure of mass distribution about an axis.I = m1r1^2Where r1= Perpendicular distance of the i th mass from the axis of rotation.SI unit → kg-m2 Gives the measure of rotati...
· The opposing force that comes into play when one body tends to move over the surface of another, but the actual relative motion has yet not started is called Static friction.· Limiting friction is the max...
Friction is an opposing force that comes into play when one body actually moves (slides or rolls) or even tries to move over the surface of another body. Thus, the force of friction is the force that develops a...
a. a horse cannot pull a cart and run in empty space, Ans: In order to pull a cart, a horse pushes the ground backward with some force. The ground in turn exerts an equal and opposite reaction force upo...
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