An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
Answer (2)
Let's work through each question, one by one, to understand how to convert between 12-hour and 24-hour time formats:
What is the 12-hour time for 00:30?
In the 24-hour clock, 00:30 is the same as 12:30 AM in the 12-hour clock.
The answer is B. 12:30 AM .
If it is 9:15 PM, what is the 24-hour time?
PM times in the 12-hour format are from 12:00 PM to 11:59 PM. To convert to 24-hour format, you add 12 to the hour: 9 + 12 = 21, so it's 21:15.
The answer is C. 21:15 .
What is the 12-hour time for 14:20?
In 24-hour time, 14:20 is the same as 2:20 PM in 12-hour time. Subtract 12 from 14 to convert it.
The answer is D. 2:20 PM .
Which of the following shows 7:00 AM in 24-hour time?
In 24-hour format, times from 00:00 to 11:59 are the same as the 12-hour format. So, 7:00 AM is 07:00.
The answer is A. 07:00 .
What time is shown in 12-hour format if the clock reads 22:00?
To convert 22:00 to the 12-hour format, subtract 12 from 22 to get 10:00 PM.
The answer is C. 10:00 PM .
Which time is in the afternoon?
In a 24-hour clock, the afternoon starts at 12:00, which is 13:00 in the 24-hour format. Therefore, 15:00 is 3:00 PM, which is in the afternoon.
The answer is C. 15:00 .
These conversions help you switch between different time formats, which is useful for various activities in daily life and understanding time in different cultural contexts.
The answers for the questions are as follows: 1) B, 2) C, 3) D, 4) A, 5) C, 6) C. These answers represent conversions between 12-hour and 24-hour time formats, helping to understand how to read and interpret different time styles. Each conversion reflects standard practices of time management, such as military time or scheduling.
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