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What is density?
Density is a physical characteristic, and calculates of mass per unit of volume of a material or substance. It is a measurement of the quantity of matter in a given volume of something.
The higher an object's density, the higher it's mass per unit of volume. The average density of an object equivalent its total mass divided by its total volume. A denser object (like iron) will have less volume than an equal mass of some less dense substance (like water).
A 0.150-kg ball that is thrown at a velocity of 30.0 m/s hits a wall and bounces back in the opposite direction with a speed of 25.0 m/s. How much work was done by the ball?
Field Lines A field line is a locus in which is described through a vector field and a beginning location within the field. Field lines are meaningful for visualizing vector f
what is the principle on which deflection magnetometer work?
An x-ray photon collides with a free electron, and the photon is scattered. During this collision there is conservation of: a) Momentum but not energy b) Neither momentu
The potential difference across the terminals of a cell when it is not supplying any current is known as it's emf.
Three coils each having resistance 3 Ω and inductive reactance 4Ω are linked (i) instar and (ii) in delta to a 415V, 3-phase supply. Calculate for each connection (a)
can a charge by any means, today, travel from a source to a sink wirelessly? Is there any technology to support it?
production and analysis of diffrent polarised light
The scattering of a photon by an electron is known as Compton Effect. The momentum and energy is preserved. Scattered photon will have less power as compare to incident photon (les
The wrench shown in the figure is designed for access to the bolt at O. The wrench lies in a vertical plane and a horizontal force of P27 (as in question 14) is applied at A perpe
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