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Yanka [14]
2 years ago
11

HELP ME PLEASE!!!

Mathematics
1 answer:
Pavel [41]2 years ago
7 0

Answer:

Lo siento amigo mío pero ha llegado el momento. Necesitas hacer tu propia tarea porque la profunda y oscura verdad es ... nadie te ayudará cuando falles en la prueba. Por eso estoy aquí para llevarte. Deja de pedir respuestas y pruébalas tú mismo. Pídele ayuda a tu maestro. Pero deja de pedirle respuestas a la gente. Eso es definitivamente una trampa.

Step-by-step explanation:

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Can someone explain this
horsena [70]

9514 1404 393

Answer:

  • resultant force: 93.946∠-10.62° N
  • line of action: 17.314x +92.337y = 809.433

Step-by-step explanation:

We can use the notation a∠b to represent the (x, y) components (a·cos(b), a·sin(b)), where angle b is measured CCW from the +x direction. If we label the forces a, b, c, d clockwise from A, then we have ...

  a = 80∠0° = (80, 0)

  b = 60∠90° = (0, 60)

  c = 90∠45° = (63.640, 63.640)

  d = 150∠-110° = (-51.303, -140.954)

__

If we label point A the origin, then the clockwise torque on point A is the sum of products of the force x-component and its y location, and its y-component and the negative of its x location.

  T = (0, 0)·(80, 0) +(3, 0)·(0, 60) +(3, -8)·(63.640, 63.640) +(0, -8)·(-51.303, -140.954)

  T = 809.433 . . . . n·m, the CW torque on point A

__

The sum of forces is ...

  F = a +b +c +d = (92.337, -17.314) = 93.946∠-10.62° . . . N

__

This force, applied to the point of application, must generate the same torque as the given forces. That is ...

  F·(y, -x) = 809.433

Then the equation of the line of action is ...

  17.314x +92.337y = 809.433 . . . . . x and y in meters measured from A

Any point (x, y) on this line will serve as a point of application of the force. Unfortunately, this line of action does not pass through the rectangular plate. The attachment shows the point (D) on the line of action that is closest to point A.

_____

<em>Additional comment</em>

The resultant force could be decomposed into two forces acting <em>on the rectangular plate</em>. One could be of much larger magnitude, operating at the corner opposite point A. This force would provide the necessary torque. Another would be acting on point A, providing no torque, but with components such that the resultant has the correct magnitude and direction.

6 0
3 years ago
(5 1/4)÷(−2 1/2)? please help me
lisov135 [29]
-21/10 or -2&1/10 I used my calculator
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3 years ago
Read 2 more answers
Solve the system of linear equations by ellmination. 5x + 9y = -11 3x + 9y = -3 A. (-4,-1) -B. (-1, –4) C. (-4,1) D. (1,-4)​
valentina_108 [34]

Answer:

Step-by-step explanation:

5x + 9y = -11

3x + 9y  = -3

5x + 9y = -11

-3x - 9y = 3

2x = -8

x = -4

-12 + 9y = -3

9y = 9

y = 1

(-4, 1)

Answer is C

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3 years ago
What’s 3 times 6 over 7 **MULTIPLY
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Would it be 2.5??? I think it would but not completely sure

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Does anyone know how to do this HW??
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Answer:

i once took a pic of my HW on this app and got it finished in under 10 minutes

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