An Electron Enters a Region That Contains a Magnetic Field

question 61

Multiple Choice

An electron enters a region that contains a magnetic field directed into the page as shown. The velocity vector of the electron makes an angle of 30° with the +y axis. What is the direction of the magnetic force on the electron when it enters the field?

• A)up, out of the page
• B)at an angle of 30° below the positive x axis
• C)at an angle of 30° above the positive x axis
• D)at an angle of 60° below the positive x axis
• E)at an angle of 60° above the positive x axis

Understand the concept of egocentrism and its impact on a child’s perspective-taking abilities.

Identify and explain the concepts of class inclusion and conservation in cognitive development.

Explain the importance of scaffolding in supporting learning and development in early childhood.

Understand the concept of marginal benefit and how it influences decision-making.

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Definitions:

Diminishing Marginal Utility

The principle stating that as a person consumes more of a good or service, the satisfaction gained from each additional unit decreases.

Utility Maximizer

An economic concept referring to consumers who select goods or services in a way that maximizes their total satisfaction or utility.

Utility From Milk

The satisfaction or benefit a consumer receives from consuming milk, assessing its nutritional value and taste preferences.

Optimal Consumption Rule

A guideline suggesting that to maximize utility, consumers should allocate their budget in a way that the last dollar spent on each good or service yields the same level of marginal utility.