An Airplane Is Flying Through a Thundercloud at a Height

question 61

Multiple Choice

An airplane is flying through a thundercloud at a height of 2 000 m.(This is a very dangerous thing to do because of updrafts,turbulence,and the possibility of electric discharge. ) If there is a charge concentration of +40 C at height 3 000 m within the cloud and -40 C at height 1 000 m,what is the magnitude of the electric field E at the aircraft? (k_e = 8.99 x 10⁹ N·m²/C²)

• A)90 000 N/C
• B)180 000 N/C
• C)360 000 N/C
• D)720 000 N/C

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Definitions:

Object

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NullPointerException

An exception thrown in Java when an application attempts to use an object reference that has the null value, indicating that no object has been assigned to the reference.

Preorder Traversal

A way of traversing a tree data structure where each node is visited before its child nodes in a top-down, left-right manner.

Binary Search Tree

A binary tree data structure where each node has at most two children, arranged such that for every node, all elements in the left subtree are less, and in the right subtree are greater.