Two small spheres with mass m

$=15\mathrm{.}4$ g

are hung by silk threads of length L

$=1\mathrm{.}19$ m

from a common point $($Figure $1).$ When the spheres are given equal charges, so that q$1=$q$2=$q

$,$ each thread hangs at an angle $\backslash$theta

$=21\mathrm{.}0$

from the vertical.

Figure$1$ of $1$

Two identical small spheres of mass m each are suspended from the same point of a horizontal ceiling on threads of length L$.$ The sphere on the left has charge q subscript $1$ and the sphere on the right has charge q subscript $2.$ The charges repel and the threads make the same angle theta with the vertical.

Part A

Part complete

Draw a diagram showing the forces on the left sphere. Treat the spheres as point charges.

Draw the force vectors with their tails at the left sphere. The location and orientation of your vectors will be graded. The length of your vectors will not be graded.

All elements have already been added.All elements have already been added. Select to observe the list of the elements that can be added to the canvas. Press CTRL$+$Y to get to the elements on the canvas. Press CTRL$+$Q to quit the application.

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Delete the selected element. Press CTRL$+$Y to get to the elements on the canvas. Press CTRL$+$Q to quit the application.

Press to go to keyboard navigation instructions below the canvas.

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Attributes panel is empty. Press CTRL$+$Y to get to the elements on the canvas. Press CTRL$+$M to return to the main menu. Press CTRL$+$Q to quit the application.No elements selected

The angle counting from horizontal axis counterclockwise $69$ degrees. Use arrows to move the end point.

Press TAB to go to the next element. There is an image on the canvas: Two identical spheres with mass m are suspended from the ceiling by threads of length L$.$ The sphere to the left has charge q $1$ and the sphere to the right has charge q $2.$ The charges repel and the threads make equal acute angles theta with the vertical.

Two identical spheres with mass m are suspended from the ceiling by threads of length L$.$ The sphere to the left has charge q $1$ and the sphere to the right has charge q $2.$ The charges repel and the threads make equal acute angles theta with the vertical.

mg$$

F$$ e

T$$

Select the elements from the list and add them to the canvas setting the appropriate attributes. Press TAB to get to the main menu.Use arrow keys to apply parallel transition to the object. Press TAB to move to the next element on the canvas. Press SHIFT$+$TAB to return to selecting the end point. Press DEL to delete the element from the canvas. Press CTRL$+$A to modify the attributes. Press CTRL$+$M to get to the main menu. Press ESC to quit adding or editing this element. Press CTRL$+$Q to quit the application.Press SPACE to get to the set of hotspots or use arrow keys to move on the canvas. Press ESC to quit adding or editing this element. Press CTRL$+$A to modify the attributes. Press CTRL$+$M to get to the main menu. Press CTRL$+$Q to quit the application.Press SPACE to get to the set of hotspots or use arrow keys to move on the canvas. Press TAB to select the whole element. Press SHIFT$+$TAB to move to selecting the start point. Press CTRL$+$A to modify the attributes. Press CTRL$+$M to get to the main menu. Press ESC to quit adding or editing this element. Press CTRL$+$Q to quit the application.Press TAB to move to the next element on the canvas. Press DEL to delete the element from the canvas. Press CTRL$+$A to modify the attributes. Press CTRL$+$M to get to the main menu. Press ESC to quit adding or editing this element. Press CTRL$+$Q to quit the application.Press SPACE to get to the set of hotspots or use arrow keys to move on the canvas. Press ENTER to change the direction. Press TAB to move to the next element on the canvas. Press DEL to delete the element from the canvas. Press CTRL$+$A to modify the attributes. Press CTRL$+$M to get to the main menu. Press ESC to quit adding or editing this element. Press CTRL$+$Q to quit the application.

Previous Answers

Correct

Part B

Part complete

Draw a diagram showing the forces on the right sphere. Treat the spheres as point charges.

Draw the force vectors with their tails at the right sphere. The location and orientation of your vectors will be graded. The length of your vectors will not be graded.

All elements have already been added.All elements have already been added. Select to observe the list of the elements that can be added to the canvas. Press CTRL$+$Y to get to the elements on the canvas. Press CTRL$+$Q to quit the application.

Select to show$/$hide the vector for the sum of the drawn vectors. Press CTRL$+$Y to get to the elements on the canvas. Press CTRL$+$Q to quit the application.

Delete the selected element. Press CTRL$+$Y to get to the elements on the canvas. Pres