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Physics

General

Easy

Question

If $straight A with rightwards arrow on top equals 3 straight i with not stretchy hat on top plus 4 straight j with not stretchy hat on top plus 9 straight k with not stretchy hat on top$ is multiplied by 3, then the component of the new vector along z directions is

-3
+3
-27
+27

The correct answer is: -27

Related Questions to study

1) $49 to the power of n plus 16 n minus 1$ is divisible by $A$ for all $n element of N$
2) $3 to the power of 2 n end exponent plus 7$ is divisible by $B$ for all $n element of N$
3) $4 to the power of n minus 3 n minus 1$ is divisible by $C$ $n element of N$
4) $3 to the power of 3 n end exponent minus 26 n minus 1$ is divisible by $D$ for all $n element of N$ then the increasing order of $A comma B comma C comma D$ is

1) $49 to the power of n plus 16 n minus 1$ is divisible by $A$ for all $n element of N$
2) $3 to the power of 2 n end exponent plus 7$ is divisible by $B$ for all $n element of N$
3) $4 to the power of n minus 3 n minus 1$ is divisible by $C$ $n element of N$
4) $3 to the power of 3 n end exponent minus 26 n minus 1$ is divisible by $D$ for all $n element of N$ then the increasing order of $A comma B comma C comma D$ is

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Magnitudes of $Error converting from MathML to accessible text.$ and $Error converting from MathML to accessible text.$ are 41,40 and 9 respectively, $Error converting from MathML to accessible text.$ Find the angle between $straight A with rightwards arrow on top$ and $Error converting from MathML to accessible text.$

The sum of $straight P with rightwards arrow on top$ and $Error converting from MathML to accessible text.$ is at right angles to their difference then

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The resultant of two vectors is maximum when they

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$straight C with rightwards arrow on top equals straight A with rightwards arrow on top plus straight B with rightwards arrow on top$ and A=B=C Find the angle between $A with not stretchy rightwards arrow on top$ and $Error converting from MathML to accessible text.$

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A and $straight B with rightwards arrow on top$ are nonzero vectors. Which from the followings is true?

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Which from the following is a scalar ?

Which from the following is a scalar ?

parallel

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