09/29/20
Solution in a container
A container initially contains 10L of salt solution. Water flows in at a rate of 3L/min, and the well-stirred mixture flows out at a rate of 3L/min. After 5 minutes the concentration of salt in the...
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05/21/20
Trigonometry Vector problems
For the vector 𝑎 = 12 units at 𝜃 = 160° and 𝑏 = 8 units at 𝜃 = 310° , find 𝑎 + 𝑏1.As the sum of two components2. As a magnitude and direction
05/17/20
Gauss's Law Question
A sphere with R radius has ρ (r)=ρ0 (1 − r/2R) volumetric charge density. (ρ0 is a positive constant).a) Obtain the expression of electric field at a point in the sphere (r <R) in terms of...
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05/11/20
Suppose the function r and s are defined for all real numbers x as follows
Suppose the function r and s are defined for all real numbers x as followsr(x)=x+2s(x)=3x^2write the expressions for (r.s)(x) and (r+s)(x) and evaluate (r-s)(-1)(r.s)(x)=(r+s)(x)=(r-s)(-1)=
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