what is the length of one cardiac cycle of each block is 0.04
To find the length of one cardiac cycle, you need to know the duration of each block and how many blocks make up a cardiac cycle.
In this case, you mentioned that each block has a duration of 0.04 (you didn't specify the unit of time, but let's assume it is seconds). Let's call this a "block duration".
To determine the length of one cardiac cycle, you need to know how many blocks are in a cardiac cycle. Unfortunately, you didn't provide that information. The number of blocks can vary depending on the method used to measure a cardiac cycle.
If you have the number of blocks in a cardiac cycle, you can simply multiply the block duration by the number of blocks to obtain the length of one cardiac cycle.
For example, if there are 5 blocks in a cardiac cycle, the length of one cardiac cycle would be 0.04 * 5, which is 0.2 seconds.
Please provide the number of blocks in a cardiac cycle to calculate the length accurately.