1. Assume that the bracket shown is made from a homogenous (uniform) flat plate of negligible thickness. Each of the four holes has diameter d, -2d Sd 5d d= diameter of holes 2d - which is given. What are the x and : coordinates of the bracket's mass cen- 2d ter? (The angle 0 in the figure is irrel- 7d evant.) [Hint: Because the diameter of the holes is given, you must ac- count for them.] 2d 4d

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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1. Assume that the bracket shown is made from a homogeneous (uniform) flat plate of negligible thickness. Each of the four holes has diameter \( d \), which is **given**. What are the \( x \) and \( z \) coordinates of the bracket’s mass center? (The angle \( \theta \) in the figure is irrelevant.) [Hint: Because the diameter of the holes is given, you must account for them.]

### Diagram Description

The diagram illustrates a bracket made from a flat plate bent at a right angle. It features two surfaces—one vertical and one horizontal—with each surface having two holes. The holes are uniformly distributed, and the diameter of each hole is labeled \( d \).

- **Vertical Plate:**
  - The holes are aligned vertically.
  - The top and bottom holes are \( 5d \) apart.
  - The distance from the top of the vertical plate to the top hole is \( 2d \).
  - The distance from the bottom of the vertical plate to the bottom hole is \( 2d \).

- **Horizontal Plate:**
  - The distance from the bend to the vertical alignment of the holes is \( 4d \).
  - The distance from the edge of the horizontal plate to the holes horizontally is \( 2d \).

- **Overall Bracket Layout:**
  - The entire structure forms an L-shape.
  - Both the vertical and horizontal plates have identical hole spacing horizontally (\( 2d \)) from their respective nearest edges.
  - A \( z \)-axis is shown as perpendicular to the bent edge, and an \( x \)- and \( y \)-axis are outlined on the horizontal plane. The angle \( \theta \) is irrelevant for this problem.
  
The problem involves calculating the center of mass in the \( x \) (horizontal) and \( z \) (vertical) directions, considering that the material is uniform and the holes reduce the mass in those specific regions.
Transcribed Image Text:1. Assume that the bracket shown is made from a homogeneous (uniform) flat plate of negligible thickness. Each of the four holes has diameter \( d \), which is **given**. What are the \( x \) and \( z \) coordinates of the bracket’s mass center? (The angle \( \theta \) in the figure is irrelevant.) [Hint: Because the diameter of the holes is given, you must account for them.] ### Diagram Description The diagram illustrates a bracket made from a flat plate bent at a right angle. It features two surfaces—one vertical and one horizontal—with each surface having two holes. The holes are uniformly distributed, and the diameter of each hole is labeled \( d \). - **Vertical Plate:** - The holes are aligned vertically. - The top and bottom holes are \( 5d \) apart. - The distance from the top of the vertical plate to the top hole is \( 2d \). - The distance from the bottom of the vertical plate to the bottom hole is \( 2d \). - **Horizontal Plate:** - The distance from the bend to the vertical alignment of the holes is \( 4d \). - The distance from the edge of the horizontal plate to the holes horizontally is \( 2d \). - **Overall Bracket Layout:** - The entire structure forms an L-shape. - Both the vertical and horizontal plates have identical hole spacing horizontally (\( 2d \)) from their respective nearest edges. - A \( z \)-axis is shown as perpendicular to the bent edge, and an \( x \)- and \( y \)-axis are outlined on the horizontal plane. The angle \( \theta \) is irrelevant for this problem. The problem involves calculating the center of mass in the \( x \) (horizontal) and \( z \) (vertical) directions, considering that the material is uniform and the holes reduce the mass in those specific regions.
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