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Long, thin, pliable carpet is laid on the ?oor. One end of the carpet is bent back and then pulled backwards with constant unit velocity, just above the part of the carpet which is still at rest on the ?oor.
Find the speed of the centre of mass of the moving part. What is the minimum force required to pull the moving part, if the carpet has unit length and unit mass?
what is electic field
As shown in the figure below, a source at S is sending out a spherical wave: E 1 =(A ×D/r) cos( wt-2πr/ λ) ; where r is the distance to source S. In addition, there is anoth
mass of body= 4 kg is dropped form height= 45 m Calculate the kinetic energy just before hitting the ground
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A charge of 2.00x 10 -6 C is moved against a constant electric field. If 4.50 x 10 -4 J of work is done on the charge. what is the potential difference between the initial an
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Define Radioactive Dating Half-life measurements of radioactive elements in rocks and fossils can be used to determine the age of the specimen. One of the most common types of
Charge is the characteristic associated with matter due to which it produces and experiences electrical and magnetic effects.
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