An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
Answer (2)
Identify the salary range: $780 falls between $800 and $820 .
Locate the withholding amount for 6 exemptions in the $800 − $820 range: $11 .
Recognize that federal income tax is withheld, reducing net pay.
Conclude that the net pay decreases by $11 : C
Explanation
Understanding the Problem The problem provides a table of federal income tax withholding amounts based on salary ranges and the number of exemptions claimed. We are given that a person earns a gross biweekly salary of $780 and claims 6 exemptions. We need to determine how their net pay changes due to federal income tax withheld.
Finding the Correct Salary Range First, we need to find the correct row in the table that corresponds to the person's salary. The salary is $780 , which falls in the range of $800 − $820 .
Finding the Correct Exemption Column Next, we need to find the column that corresponds to the number of exemptions claimed, which is 6.
Determining the Withholding Amount Now, we look at the intersection of the $800 − $820 row and the 6 exemptions column. The value at this intersection is $11 . This is the amount of federal income tax withheld.
Determining the Change in Net Pay Since the federal income tax is withheld, it means this amount is subtracted from the gross pay to arrive at the net pay. Therefore, the net pay will decrease by $11 .
Final Answer The question asks how the net pay changes. Since $11 is withheld, the net pay is reduced by $11 . Therefore, the correct answer is that they will subtract $11 from their gross pay.
Examples
Understanding how federal income tax withholding affects your net pay is crucial for personal finance. For instance, if you are planning your monthly budget, knowing how much will be deducted for taxes helps you accurately estimate your disposable income. This knowledge can guide decisions on savings, investments, and spending, ensuring you have a realistic financial plan. By understanding the tax withholding process, you can also make informed decisions about adjusting your exemptions to optimize your tax outcome.
The total charge delivered by a device with a current of 15.0 A for 30 seconds is 450 coulombs. This charge corresponds to approximately 2.81 × 1 0 21 electrons flowing through the device. Thus, during this time period, around 2.81 × 1 0 21 electrons pass through the device.
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