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Physics
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4d_
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  • Last seen more than 3 years ago
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13
Can we divide a vector by another vector? How about this: $a = vdv/dx?$
8
Potential energy of a spring vs potential energy of the spring-mass system
7
Is a unit vector really unitless and dimensionless?
6
If $f(x) =5x^2 - 2kx + 1 < 0$ has exactly one integral solution, find the sum of all positive integral values of $k$.
5
Tension in a massless string being pulled at its ends with unequal forces