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Recent questions tagged positive


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Find the number of digits (base 10) of the smallest number that is divisible by all numbers from 1 to 20
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Find the volume inside the paraboloid \(x^{2}+4 z^{2}+8 y=16\) and on the positive side of xz-plane
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Which of the following sets of 3 forces CANNOT have a vector sum of zero?
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Which of the following sets of 3 forces CANNOT have a vector sum of zero?Which of the following sets of 3 forces CANNOT have a vector sum of zero? w) 10, 10 and 10 Newtons x) 10, 10 and 20 Newtons y) 10, 20 and 20 Newton ...
by Digitized Wooden
(1,150 points)
asked in Physics Oct 5, 2021
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A P-type semiconductor is doped to produce one of the following. Will it produce:
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A P-type semiconductor is doped to produce one of the following. Will it produce:A P-type semiconductor is doped to produce one of the following. Will it produce: w) both holes and electrons x) positive electrons y) negative ele ...
by Digitized Wooden
(1,150 points)
asked in Physics Oct 5, 2021
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For an infinite sheet of positive charge, the electric field lines:
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For an infinite sheet of positive charge, the electric field lines:For an infinite sheet of positive charge, the electric field lines: w) run parallel to the sheet of charge x) are perpendicular to the sheet of char ...
by Digitized Wooden
(1,150 points)
asked in Physics Oct 5, 2021
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As defined in physics, work is:
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As defined in physics, work is:As defined in physics, work is: w) a scalar quantity x) always a positive quantity y) a vector quantity z) always zero ...
by Digitized Wooden
(1,150 points)
asked in Physics Oct 5, 2021
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The work done by a friction force is:
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The work done by a friction force is:The work done by a friction force is: w) always positive x) always negative y) always zero z) either positive or negative depending upon the situa ...
by Digitized Wooden
(1,150 points)
asked in Physics Oct 5, 2021
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Determine if \(a_{n}=1-1.1+1.11-1.111+1.1111-\ldots\) converges and find the sums when they exist?
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What is a permutation?
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What is a permutation?What is a permutation? ...
by Siyavula Bronze Status
(7,026 points)
asked in Mathematics Sep 5, 2021
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In the following problem, \(b\), and \(c\). REAL NUMBERS. The derivative of \(g(x)=\log _{a}(b x)+c x^{2}\) is:
1 answer 53 views
In the following problem, \(b\), and \(c\). REAL NUMBERS. The derivative of \(g(x)=\log _{a}(b x)+c x^{2}\) is: In the following problem, \(b\), and \(c\). REAL NUMBERS.The derivative of \(g(x)=\log _{a}(b x)+c x^{2}\) is: \(g^{\prime}(x)= \dfrac{b ...
by MathsGee Platinum
(103,812 points)
asked in Mathematics Aug 31, 2021
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Find the sum of all odd natural numbers smaller than $24 .$
1 answer 51 views
Find the sum of all odd natural numbers smaller than $24 .$Find the sum of all odd natural numbers smaller than $24 .$ ...
by Siyavula Bronze Status
(7,026 points)
asked in Mathematics Aug 28, 2021
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Show that if $(\partial N / \partial x-\partial M / \partial y) /(x M-y N)$ depends only on the product $x y$, that is
1 answer 38 views
Show that if $(\partial N / \partial x-\partial M / \partial y) /(x M-y N)$ depends only on the product $x y$, that isShow that if $(\partial N / \partial x-\partial M / \partial y) /(x M-y N)$ depends only on the product $x y$, that is $$ \frac{\partial N / \partial ...
by Siyavula Bronze Status
(7,026 points)
asked in Mathematics Aug 27, 2021
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Find $u \times v$ where:
1 answer 33 views
Find $u \times v$ where:Find $u \times v$ where: (a) $\boldsymbol{u}=4 \mathbf{i}+3 \mathbf{j}+6 \mathbf{k}, v=2 \mathbf{i}+5 \mathbf{j}-3 \mathbf{k}$ (b) $u=2,-1,5, \quad ...
by Maths Genie Bronze Status
(5,362 points)
asked in Mathematics Aug 9, 2021
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Compute $d(u,v)$ given that $u=(1,-2,3)$ and $v=(2,4,5)$
1 answer 46 views
Compute $d(u,v)$ given that $u=(1,-2,3)$ and $v=(2,4,5)$Compute $d(u,v)$ given that $u=(1,-2,3)$ and $v=(2,4,5)$ ...
by Maths Genie Bronze Status
(5,362 points)
asked in Mathematics Aug 9, 2021
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What is the distance between the vectors $u=\left(a_{1}, a_{2}, \ldots, a_{n}\right)$ and $v=\left(b_{1}, b_{2}, \ldots, b_{n}\right)$ in $\mathbf{R}^{n}$?

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What is a zero vector?
1 answer 73 views
What is a zero vector?What is a zero vector? ...
by Maths Genie Bronze Status
(5,362 points)
asked in Mathematics Aug 9, 2021
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Let $u=(2,4,-5)$ and $v=(1,-6,9)$. Then $u+v =$
1 answer 43 views
Let $u=(2,4,-5)$ and $v=(1,-6,9)$. Then $u+v =$Let $u=(2,4,-5)$ and $v=(1,-6,9)$. Then $u+v =$ ...
by Maths Genie Bronze Status
(5,362 points)
asked in Mathematics Aug 9, 2021
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Show that $-(-u)=u$ for any vector $u$ in $R^{*}$
1 answer 32 views
Show that $-(-u)=u$ for any vector $u$ in $R^{*}$Show that $-(-u)=u$ for any vector $u$ in $R^{}$ ...
by Maths Genie Bronze Status
(5,362 points)
asked in Mathematics Aug 9, 2021
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Define the negative, $-u$, of a vector $u=\left(a_{1}, a_{2}, \ldots, a_{n}\right)$ in $\mathbf{R}^{*}$,
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Find $x$ and $y$ if $u=(x+y, x-3)$ is the zero vector.
1 answer 47 views
Find $x$ and $y$ if $u=(x+y, x-3)$ is the zero vector.Find $x$ and $y$ if $u=(x+y, x-3)$ is the zero vector. ...
by Maths Genie Bronze Status
(5,362 points)
asked in Mathematics Aug 9, 2021
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Find $x$ and $y$ if $(x, 3)=(2, x+y)$.
1 answer 28 views
Find $x$ and $y$ if $(x, 3)=(2, x+y)$.Find $x$ and $y$ if $(x, 3)=(2, x+y)$. ...
by Maths Genie Bronze Status
(5,362 points)
asked in Mathematics Aug 9, 2021
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For vectors $u$ and $u$ in $R^{\prime \prime}$, when is $u=v ?$
1 answer 55 views
For vectors $u$ and $u$ in $R^{\prime \prime}$, when is $u=v ?$For vectors $u$ and $u$ in $R^{\prime \prime}$, when is $u=v ?$ ...
by Maths Genie Bronze Status
(5,362 points)
asked in Mathematics Aug 9, 2021
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