# Recent questions tagged length

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When a metal becomes a superconductor, there is a tremendous decrease in its:
When a metal becomes a superconductor, there is a tremendous decrease in its:When a metal becomes a superconductor, there is a tremendous decrease in its: w) total volume x) electrical resistance y) length z) density ...
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The focal length of a concave spherical mirror is equal to 1 meter. What is the radius of curvature of this mirror?
The focal length of a concave spherical mirror is equal to 1 meter. What is the radius of curvature of this mirror?The focal length of a concave spherical mirror is equal to 1 meter. What is the radius of curvature of this mirror? ...
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A converging thin lens has a focal length of 27 centimeters. An object is placed 9 centimeters from the lens. Where is the image of this object formed?
A converging thin lens has a focal length of 27 centimeters. An object is placed 9 centimeters from the lens. Where is the image of this object formed?A converging thin lens has a focal length of 27 centimeters. An object is placed 9 centimeters from the lens. Where is the image of this object formed ...
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The focal length of a concave mirror is 2 meters. An object is positioned 8 meters in front of the mirror. Where is the image of this object formed
The focal length of a concave mirror is 2 meters. An object is positioned 8 meters in front of the mirror. Where is the image of this object formedThe focal length of a concave mirror is 2 meters. An object is positioned 8 meters in front of the mirror. Where is the image of this object formed ...
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Determine the equation of the circle with centre $(2 ;-5)$ and radius $4 .$
Determine the equation of the circle with centre $(2 ;-5)$ and radius $4 .$Determine the equation of the circle with centre $(2 ;-5)$ and radius $4 .$ ...
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Determine the equation of the circle with centre $\mathrm{B}(-4 ; 3)$ and radius $4 .$
Determine the equation of the circle with centre $\mathrm{B}(-4 ; 3)$ and radius $4 .$Determine the equation of the circle with centre $\mathrm{B}(-4 ; 3)$ and radius $4 .$ ...
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Determine the equation of the circle with centre $\mathrm{K}(-5 ;-4)$ and radius $5 .$
Determine the equation of the circle with centre $\mathrm{K}(-5 ;-4)$ and radius $5 .$Determine the equation of the circle with centre $\mathrm{K}(-5 ;-4)$ and radius $5 .$ ...
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In order to protect his vegetables, a farmer buys $1748 \mathrm{~m}$ of fencing. Give the dimensions of the vegetable garden if it should cover a maximum area.
In order to protect his vegetables, a farmer buys $1748 \mathrm{~m}$ of fencing. Give the dimensions of the vegetable garden if it should cover a maximum area.In order to protect his vegetables, a farmer buys $1748 \mathrm{~m}$ of fencing. Give the dimensions of the vegetable garden if it should cover a ma ...
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Measurements are collected from 100 subjects from each of two sources. The data yield the following frequency histograms. The number above each rectangle is its height.
Measurements are collected from 100 subjects from each of two sources. The data yield the following frequency histograms. The number above each rectangle is its height. Measurements are collected from 100 subjects from each of two sources. The data yield the following frequency histograms. The number above each rect ...
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What is the derivative of the curve $F(t)=[\sin t, \cos t, t]$ in $\mathbf{R}^{3}$?
What is the derivative of the curve $F(t)=[\sin t, \cos t, t]$ in $\mathbf{R}^{3}$?What is the derivative of the curve $F(t)=\sin t, \cos t, t$ in $\mathbf{R}^{3}$? ...
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Normalize the vector $v=(1,-3,4,2)$
Normalize the vector $v=(1,-3,4,2)$Normalize the vector $v=(1,-3,4,2)$ ...
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What is the norm of $u=(1,-2,-4,5,3)$?
What is the norm of $u=(1,-2,-4,5,3)$?What is the norm of $u=(1,-2,-4,5,3)$? ...
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What is the norm of a vector?
What is the norm of a vector?What is the norm of a vector? ...
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How does the width of the confidence interval change with length?
How does the width of the confidence interval change with length?How does the width of the confidence interval change with length? ...
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The sides of a rectangle are positive whole numbers. If its area is $A$ and its perimeter is $P$, which of the following numbers cannot equal $A+P ?$
The sides of a rectangle are positive whole numbers. If its area is $A$ and its perimeter is $P$, which of the following numbers cannot equal $A+P ?$The sides of a rectangle are positive whole numbers. If its area is $A$ and its perimeter is $P$, which of the following numbers cannot equal $A+P ?$ ...
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Using a right-angled triangle how can we derive the trigonometric identity $1+\cot ^{2} \theta=\csc ^{2} \theta$
Using a right-angled triangle how can we derive the trigonometric identity $1+\cot ^{2} \theta=\csc ^{2} \theta$Using a right-angled triangle how can we derive the trigonometric identity $1+\cot ^{2} \theta=\csc ^{2} \theta$ ...
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The lengths of two sides of a triangle are $b$ and $c$. Let $s$ be the length of the angle bisector of the angle between the two given sides. The length of the third side of the triangle is:The lengths of two sides of a triangle are $b$ and $c$. Let $s$ be the length of the angle bisector of the angle between the two given sides. The leng ...
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The measure of the angle $\angle C B D$ is:
The measure of the angle $\angle C B D$ is:In the triangle $\triangle A B C$ measures of angles $\angle A=46^{\circ}$ and $\angle C=60^{\circ}$ are given. The angle bisector intersects the circ ...
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In the right triangle the length of one leg is 5 in., and the measure of the angle opposite to that side is $30^{\circ}$. Determine which of the given statements is correct.
In the right triangle the length of one leg is 5 in., and the measure of the angle opposite to that side is $30^{\circ}$. Determine which of the given statements is correct.In the right triangle the length of one leg is 5 in., and the measure of the angle opposite to that side is $30^{\circ}$. Determine which of the given ...
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Triangle $\triangle A B C$, right angled at $C$, is given. Height and the median from point $C$ form an angle $\varphi$. The measure of larger acute angle of $\triangle A B C$ is:Triangle $\triangle A B C$, right angled at $C$, is given. Height and the median from point $C$ form an angle $\varphi$. The measure of larger acute a ...
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The distance of the shorter ladder form the wall is:
The distance of the shorter ladder form the wall is:A pair of ladders whose lengths are $4.2 \mathrm{~m}$ and $5.6 \mathrm{~m}$ are leaned onto a wall such that they reach the same height. The base of t ...
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What is the largest rectangular area that 80m of fencing can enclose?
What is the largest rectangular area that 80m of fencing can enclose?What is the largest rectangular area that 80m of fencing can enclose? ...
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A farmer has 2400ft. of fencing and wants to fence off a rectangular field that borders a straight river. He needs no fence along the river. What are the dimensions of the field that has the largest area?A farmer has 2400ft. of fencing and wants to fence off a rectangular field that borders a straight river. He needs no fence along the river. What are ...
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A right-angled triangle has sides $a, b$ and $c$ and the angle $\theta$, as shown below.
A right-angled triangle has sides $a, b$ and $c$ and the angle $\theta$, as shown below. A right-angled triangle has sides $a, b$ and $c$ and the angle $\theta$, as shown below. 1. $\quad$ Write the following in terms of $a, b$ an ...
Show that a triangle $\mathrm{ABC}$, with vertices $\mathrm{A}(1 ; 1) ; \mathrm{B}(3 ; 6)$ and $\mathrm{C}(6 ; 3)$, is an isosceles triangle.
Show that a triangle $\mathrm{ABC}$, with vertices $\mathrm{A}(1 ; 1) ; \mathrm{B}(3 ; 6)$ and $\mathrm{C}(6 ; 3)$, is an isosceles triangle. Show that a triangle $\mathrm{ABC}$, with vertices $\mathrm{A}(1 ; 1) ; \mathrm{B}(3 ; 6)$ and $\mathrm{C}(6 ; 3)$, is an isosceles triangle. ...