A wedge has two smooth sloping faces; one face makes an angle 30° with the horizontal and the other makes an angle 60 with the horizontal. A small smooth pulley is fixed at the apex of the wedge. A light inextensible string passes over the pulley and lies parallel to the faces of the wedge. At each end of the string there is a particle of mass 0.3kg. The system is released from rest. Show that the tension in the string is 3/4(1+√3) N.​

Answers

Answer 1

The tension in the string at rest calculating the force and friction is  approximately 2 N.

For particle A ,

The forces perpendicular to the plane is

R - 3cos 30° = 0

⇒R = 3cos 30°

The resultant force acting horizontally is  

T cos 30° - R  sin 30°

Now we substitute the value of R and T we get:

⇒ [tex]\frac{3(1+\sqrt3)}{4} cos 30 -3cos30\text{ }sin30[/tex]

⇒3√3 / 8 + 9/8 -3√3 / 4

⇒0.475 N

For the particle B.

The forces perpendicular to the plane is

R - 3cos 60° = 0

⇒R = 3cos 60°

The resultant force acting horizontally is  

T cos 60° - R  sin 60°

Now we substitute the value of R and T we get:

Force = 0.275 N

Resultant tension in the string:

0.475 -0.275 = 0.2

The given tension in the string is 3/4(1+√3) N

or, tension =2.049..N

or, tension ≈ 2 N approx

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Related Questions

Rey wrapped 6 presents every 10 hours. At that rate, how long, in hours, will it take to wrap 18 presents? label optional

Answers

Data

Rey wrapped 6 presents every 10 hours.

will it take to wrap 18 presents?

Procedure

[tex]18\text{ presents }\cdot\frac{10\text{ hours}}{6\text{ presents}}=30\text{ hours}[/tex]

It will take 30 hours

Answer: it will take 30 hours to wrap 18 gifts

Step-by-step explanation:

I cant really explain it so i will show you.

() = h (hours)

| = g (gifts)

( | | | | | | ) }-6

( | | | | | | ) }-6

( | | | | | | ) }-6

10h + 10h + 10h = 30h

6g + 6g + 6g = 18g

I hope this helped

1/3b+11/18 when b=1/6

Answers

To answer this question, we have that the expression is:

[tex]\frac{1}{3}b+\frac{1}{18}[/tex]

Answer:

Solve for b by simplifying both sides of the equation, then isolating the variable. Exact Form:

b = 3/17 Decimal Form: b=0.17647058

Step-by-step explanation:

Marcus can choose between a monthly salary of $1,500 plus 5.5% of sales or $2,600 plus 2% of sales. He expects sales between $5,000 and $10,000 a month. Complete the explanation to show which salary option he should choose based on how much he could make.

Answers

Marcus should choose $2400 plus 3% of sales.

His salary is composed of a fixed salary and a variable salary.

Fixed Salary + Variable Salary = Monthly Salary

2400 150 (3% of 5k) = 2350 - minimum salary he'll receive

2400 300 (3% of 10k) = 2700 - maximum salary he'll receive

VS

Fixed Salary + Variable Salary = Monthly Salary

1500 275 (5.5% of 5k) = 1775 - minimum salary he'll receive

1500 550 (5.5% of 10k) = 2,050 - maximum salary he'll receive

As you can see, despite the high percentage of sales offered, it is not a good option because the fixed salary is low as compared to the other option. Even the maximum salary he'll receive under the option of $1500 is way lower than the minimum salary he'll receive under the option of $2400.

Fixed salary means that each employee receives exactly the same pay and fairness as any other employee in the same pay grade. The level is determined by years of experience and position. For example, all analysts are paid exactly the same all directors are paid the same and all executives are paid the same.

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Please Help!
Solve the inequality for y. y+15 less than 14Simplify your answer as much as possible.
im in accelerated algebra

Answers

Answer:

y < - 1

Step-by-step explanation:

y + 15 < 14 ( isolate y by subtracting 15 from both sides )

y < - 1

Answer: y < - 1

Step-by-step explanation:

y + 15 < 14 (isolate y by subtracting 15 from both sides)

y < - 1

I need help with this and I need it explained to me how to do it

Answers

Answer:

14.42 feet

Explanation:

In the figure, we can see that the pole form a right triangle with legs equal to 12 feet and 8 feet, where 8 ft is half the wide or 16 ft/2 = 8 ft.

Then, by the Pythagorean theorem, the length of the slanted pole square is equal to the sum of the square of the legs, so

[tex]x^2=12^2+8^2[/tex]

Where x is the minimum length of the slanted pole. Therefore, x is equal to

[tex]\begin{gathered} x^2=144+64 \\ x^2=208 \\ x=\sqrt[]{208} \\ x=14.42 \end{gathered}[/tex]

Therefore, the answer is 14.42 feet.

In the word BALLOONS, the ratio of vowels to all letters is
3/5
5:3
8/5
3 to 8
Pls show me step by step

Answers

The ratio of vowels to all letters in the word is 3 to 8

Given,

The word BALLOONS

We have to find the ratio of vowels to all letters in this word.

Ratio;

Ratios contrast two figures by ordinarily dividing them. A/B would be your formula if you were comparing one data point (A) to another data point (B). This indicates that you are multiplying information A by information B. For instance, your ratio will be 5/10 if A is 5 and B is 10.

So,

The number of letters in BALLOONS = 8

The number of vowels = 3

The ratio of vowels to all letters in the word = 3 to 8

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Consider the equation, x2 3x + 4, where x represents a real number.a. Are the expressions x2 and 3x + 4 algebraically equivalent?b. The following table shows how we might "sift” through various values to assign to the variable symbol x in the hunt for values that would make the equation true.

Answers

(a)

The expression are equivalent to each ohter if both expressions give same value for all assign values of x. From the table it can be observed that both expression do not give same value for all values of x. Thus expression

[tex]x^2[/tex]

and 3x + 4 are not eqivalent to each other.

(b)

From the table, it can be observed that values of the expression are equal for x = 4. So equation

[tex]x^2=3x+4[/tex]

holds true for x = 4.

14 08.08LCChoose the brand of chips with the lowest price per ounce.Brand A 20 ounces for $2.50Brand 6 32 ounces for $3.25 (1 point)O Brand ABrandBoth brands have the same price per ounce.Not enough information is given

Answers

Brand 6

1) In this problem, we need to find the unit rate. So let's do it and then compare for both brands

2) Brand A

[tex]\begin{gathered} 20oz----2.5 \\ 1oz-----x \\ 20x=2.5 \\ \frac{20x}{20}=\frac{2.5}{20} \\ x=\$0.125 \end{gathered}[/tex]

So for Brand A, 1 oz is approximately 13 cents ( rounding up to the nearest hundredth)

3) Brand 6

We can write out another proportion:

[tex]\begin{gathered} 32oz----3.25 \\ 1oz----y \\ 32y=3.25 \\ \frac{32y}{32}=\frac{3.25}{32} \\ y=\$0.101 \end{gathered}[/tex]

So brand 6, 1 oz is approximately 10 cents.

9 more than the quotient of a number and 6 is 3

Answers

The expression "a number" can be represented with any letter. Use, for instance, the letter n.

Then, the expression "The quotient of a number and 6" can be represented as:

[tex]\frac{n}{6}[/tex]

9 more than the quotient of a number and 6 can be expressed as:

[tex]9+\frac{n}{6}[/tex]

If that expression is equal to 3, then:

[tex]9+\frac{n}{6}=3[/tex]

Which is an algebraic expression for "9 more than the quotient of a number and 6 is 3".

guys can u help me with this question, please

Answers

The cross marked at the points (-2.5 , -5) and  (0 , -1.5) is shown below .

The x and y coordinate helps in identifying a point in the coordinate axis and it is written as a ordered pair (x,y) .

where x represents the position of point with reference to the x-axis

and y represents the position of point with reference to the y axis .

In the question ,

points are given , we have to plot them and mark a cross .

Part(a)

point is (-2.5 , -5)

So , the x coordinate is -2.5

means the point is 2.5 units left from the origin  ,

and y coordinate is -5 .

means the point is 2.5 units down from the origin  .

the cross mark on the point is shown below .

Part(b)

point is (0 , -1.5)

So , the x coordinate is -2.5

means the point is 0 units units from the origin ,

and y coordinate is -1.5 ,

means the point is 1.5 units down from the origin  .

the cross mark on the point is shown below .

Therefore , The cross marked at the points (-2.5 , -5) and  (0 , -1.5) is shown below .

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find the area of this parallelogram in unit9yd13 yd10 yd

Answers

Given: A parallelogram with the dimension below

[tex]\begin{gathered} b=\text{base}=13yd \\ h=\text{height}=9yd \\ a=\text{slant side=10yd} \end{gathered}[/tex]

To Determine: The area of the given parallelogram

The area of a paralleogram is given by the formula

[tex]A_{\text{PARALLELOGRAM}}=\text{base}\times height[/tex]

Substitute the base and the height into the formula

[tex]\begin{gathered} A_{\text{PARALLELOGRAM}}=13yd\times9yd \\ A_{\text{PARALLELOGRAM}}=117yd^2 \end{gathered}[/tex]

Hence, the area of the given parallelogram is 117yd²

х1451°Find the value of x. Round to the nearest tenth.x=

Answers

To solve this question, we employ the sine relation;

[tex]\begin{gathered} \frac{14}{x}=\sin 51 \\ \end{gathered}[/tex]

Rearranging the equation, we obtain ;

[tex]x=\frac{14}{\sin 51}=20.88\approx20.9[/tex]

Therefore, x = 20.9

help meeeeeeeeeeeeeeeeeeeeee

Answers

Answer:

Diagonal = 9m

Step-by-step explanation:

area of a rectangle=L×W.-----------(I)

L=2W---------------(ii)

from (1)

32=2W×W

32=2W²

W²=32/2

W²=16

W=√16

W=4

from (ii)

length(L)=2W=2(4)=8m

Width(W)=4m

ii)Diagonal of a rectangle involves the use of Pythagoras theorem

Hyp²=opp²+Adj²

Hyp²=8²+4²

Hyp²=64+16

Hyp²=80

Hyp=√80

Hyp=8.94427191

Hyp=9m

:-The diagonal =9m

soving equations variable on both sides 3x=2x+50

Answers

Answer:

x = 50

Step-by-step explanation:

Solve the equation:

       3x  = 2x + 50

Subtract 2x from both sides,

  3x - 2x = 2x -2x + 50

          x  = 50

Solve the system of linear equations using matrices.4y-z=-5X+ 5y +z=-32x-y + 3z =13

Answers

The given system expressed as a matrix would be

0 4 -1 -5

1 5 1 -3

2 -1 3 13

To solve this, first, we have to change the first row for the second

1 5 1 -3

0 4 -1 -5

2 -1 3 13

Now, we multiply the first row by 2, then subtract it from the third row.

1 5 1 -3

0 4 -1 -5

0 -11 1 19

Then, we multiple the second row with -11/4 to subtract it from the third row.

1 5 1 -3

0 4 -1 -5

0 0 -7/4 21/4

The resulting system would be

[tex]\mleft\{\begin{aligned}x+5y+z=-3 \\ 4y-z=-5 \\ -\frac{7}{4}z=\frac{21}{4}\end{aligned}\mright.[/tex]

We solve for z

[tex]\begin{gathered} \frac{-7}{4}z=\frac{21}{4} \\ z=\frac{21}{-7}=-3 \end{gathered}[/tex]

Therefore, z is equal to -3.

We use z to find y in the second equation.

[tex]\begin{gathered} 4y-(-3)=-5 \\ 4y+3=-5 \\ 4y=-5-3 \\ 4y=-8 \\ y=\frac{-8}{4}=-2 \end{gathered}[/tex]

Therefore, y is equal to -2.

We use y and z to find x in the first equation.

[tex]\begin{gathered} x+5(-2)+(-3)=-3 \\ x-10-3=-3 \\ x=-3+10+3=10 \end{gathered}[/tex]

Therefore, x is equal to 10.

Given a line segment that contains the points A,B, & C in order, and given that B is the midpoint of AC, if AB = 3x + 6, and BC = X + 14,find x.

Answers

Since B is the midpoint of AC.

AB = BC

3x + 6 = x + 14

Solve for x :

3x - x = 14 - 6

2x = 8

x= 8/2

x= 4

A number n plus 4.1 is less than or equal to 7 . Write this word sentence as an inequality.

Answers

Answer:

The word sentence you are looking for is:

n + 4.1 ≤ 7

Step-by-step explanation:

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Use the partial quotients strategy to solve the following equations. Show your work. 1. 70.4 ÷ 11 = 2. 43.2 ÷ 16 =

Answers

Answer:

70.4/11 = 6.4

Step-by-step explanation:

How much interest will Harley earn in 3 years if she deposits $1,200 into a savings account that pays 6% simple interest?​

Answers

The answer is $216
Explanation: $1,200 x .06= $72 so $72 x 3= $216 in interest alone

Combined gas law
Please reply with the steps, I'm confused

Answers

Answer:

V₂ = 1.0 L

Step-by-step explanation:

Combined Gas Law

[tex]\sf \dfrac{P_1V_1}{T_1}=\dfrac{P_2V_2}{T_2}[/tex]

where:

P₁ is the initial pressure.V₁ is the initial volume.T₁ is the initial temperature.P₂ is the final pressure.V₂ is the final volume.T₂ is the final temperature.

Temperature must be in kelvins (K).

To convert Celsius to kelvins, add 273.15.

Volume can be in any unit.

Given values:

P₁ = 5 atmV₁ = 1 LT₁ = 300 KP₂ = 10 atmT₂ = 600 K

Rearrange the equation to isolate V₂:

[tex]\implies \sf V_2=\dfrac{P_1V_1T_2}{P_2T_1}[/tex]

Substitute the given values into the equation:

[tex]\sf \implies V_2=\dfrac{5 \cdot 1 \cdot 600}{10 \cdot 300}[/tex]

[tex]\sf \implies V_2=\dfrac{3000}{3000}[/tex]

[tex]\sf \implies V_2=1.0\;L[/tex]

Therefore, the volume of V₂ is 1.0 L.

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1 print is equal to 2 cups or 16 fulid ounces how many fulid onces are in 4 prints 3 cups

Answers

Answer:

There would be 88 fluid ounces in 4 prints and 3 cups.

Step-by-step explanation:

So, if 1 print is equal to two cups, and we have 4 prints, that would mean we can multiply 4 x 2, which equals 8 cups. Now that the prints are out of the way, we add the 3 cups still remaining, to get 11 cups. Now, it wants us to find the fluid ounces, which 16 fluid ounces are in 2 cups, so, 11 divided by 2 = 5.5. So, 5.5 x 16 = 88 fluid ounces.

May I have Brainliest please? I am so close to getting my next ranking! I just need 2 more for it! I would really appreciate it, and it would make my day! Thank you so much, and have a wonderful rest of your day!

Answer:

88

Step-by-step explanation:

16x4=64

8x3=24

64+24=88

Line f passes through 4, 0) and is parallel to a line that passes through (7, -3) and (-10. -2)

Answers

A straight line can be written in the form of a two variable linear equation.

The equation of line passing through point (4,0) is  y = -1 / 17 x + 4.

How to represent a straight line on a graph?

To represent a straight line on a graph consider two points namely x and y intercepts of the line. To find x-intercept put y = 0 and for y-intercept put x = 0. Then draw a line passing through these two points.

Given that,

The line is passing through the point (4,0).

It is parallel to the line passing through (7, -3) and (-10. -2).

The slope of the line passing through (7, -3) and (-10. -2) is

m₁ = (-2-(-3)) / (-10 - 7)

m₁ = - 1 / 17

Since the slope of two lines parallel to each other is equal, the slope of the line passing through point (4,0) is - 1 / 17.

Thus, the equation of line passing through point (4,0) can be written as,

(y - 4) / (x - 0) =  - 1 / 17

=> y = -1 / 17 x + 4

Hence, the equation of the given line is y = -1 / 17 x + 4.

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what does this equal
-5/6+(-5/6)=

Answers

Answer:

-5/3

Step-by-step explanation:

There are 348 identical plastic chips numbered 1 through 348 in a box. What is the probability of reaching into the box and randomly drawing a chip number that is smaller than 213? Express your answer as a simplified fraction or a decimal rounded to four decimal places

Answers

We have to find the probability of randomly drawing a chip number that is smaller than 213.

As the chips are numbered from 1 to 348,this probability will be equal to the proportion of chips that have a number that is less than 213.

We have 212 chips in the bag that have a number less than 213, so we can calculate the probability P as:

[tex]P=\frac{X}{N}=\frac{212}{348}=\frac{53}{87}\approx0.6092[/tex]

Answer: the probability is 53/87 or approximately 0.6092.

What is the difference between, obtuse, right, and scalene angles?

Answers

Answer:

Obtuse angles are angles with a measure over 90 degrees.

Right angles are angles with a measure of exactly 90 degrees.

A scalene triangle can be defined as a triangle whose all three sides have different lengths, and all three angles are of different measures. The angles of a scalene triangle follow the angle sum property and always add up to 180.

Step-by-step explanation:

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Which number lines have a point that is equal to point
P? Check all that apply.

H
-
-60
-60
-60
-60
0
0
0
0
0

Answers

Answer:

Step-by-step explanation:

-60 -60 -60 0 0

For f(x)=2^x, find for for f(5) and f (-6)

Answers

Exponentials

It order to find f(5) and f ( -6 ) we just replace x on the equation with

x = 5 and x = -6

In the first case, x = 5

[tex]\begin{gathered} f(x)=2^x \\ f(5)=2^5 \\ =2\cdot2\cdot2\cdot2\cdot2 \\ =32 \end{gathered}[/tex]

In the second case, x = -6

[tex]\begin{gathered} f(x)=2^x \\ f(-6)=2^{-6} \\ =\frac{1}{2^6} \\ =\frac{1}{2\cdot2\cdot2\cdot2\cdot2\cdot2} \\ =\frac{1}{64} \end{gathered}[/tex]Answer: f(5) = 32 and f(-6) = 1/64

can you plsss help me due now

Answers

Answer:

D

Step-by-step explanation:

I'll try to be brief

Let's plug in our 'y' variable (2x)

2x + (2x) = 20

4x = 20

x = 5

Now, plug in our 'x' variable to get our 'y' variable:

y = 2(5)

y = 10

So, our answer in (5, 10)

Or, D

At a real estate agency, an agent sold a house for $344,000. The commission rate is 4.5% for the real estate agency and the commission rate for the agent is 25% of the amount the real estate agency gets. How much did the agency make on the house? How much did the agent earn in commission?

Answers

Answer:

Commission - $15,480 | Money the agency made - $86,000

Step-by-step explanation:

4.5% of $344,000 is $15,480

25% of $344,000 is $86,000

3. (02.02 MC)
The beginning mean bi-weekly wage in a certain industry is $2,498.00. If the mean bi-weekly wage grows by 3.25%, what is the new mean annual wage? (4 points)
$62,903.63
$64,948.00
$67,058.81
$69,079.13

Answers

If the mean bi-weekly wage grows by 3.25%, the new mean annual wage is: C. $67,058.81.

What is annual wage?

Annual wage can simply be defined as the amount a person is paid  annually as wages . Wages can be paid daily or weekly.

Using this formula to find the new mean annual wage

New mean annual wage =   [Beginning mean bi-weekly wage × ( 1+ mean bi-weekly wage ) ]× Number of weeks per year /2

Let plug in the formula

New mean annual wage = [$2,498.00 × (1+ 0.0325)] × 52 weeks /2

New mean annual wage = [$2,498.00 × (1.0325)] × 26 weeks

New mean annual wage = $2,579.185 × 26 weeks

New mean annual wage = $67,058.81

Therefore the correct option is C.

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