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Showing 699 results
This video explains the relationship between mass and weight. It then shows how the car’s weight is quite distinct from its inertia (how hard it is to move it in a horizontal plane).
The video states that the velocity (v) of a wave moving along a string is related to the strings tension (T) and its mass per unit length (μ). The unit of tension is the Newton (N) and the unit of mass/length is kg/m.
A simple interrogation of the formula v = √(T/ μ) shows that as T increases so too does...
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This animation shows how cells enable us to hear. |
This video applies physics to explain how trees can move water up their trunks over 10m, which is the natural limit of sucked water. The ideas of transpiration, osmotic pressure and capillary attraction are considered. The explanation shows how a negative pressure is be obtained from the intermolecular forces and...