# heart rate calculation

Watch
#1
I dont't understand how to do this heart calculation question please. the answer is 66.7
0
2 years ago
#2
at t = 0, volume is 112cm3
at t = 0.9 s, volume is 112cm3
so time for 1 period = time for 1 heart beat = 0.9 s
so heart rate = 60 / 0.9
1
#3
thanks man
0
#4
so how would you find the stroke volume
0
2 years ago
#5
stroke volume (SV) is the volume of blood pumped from the left ventricle per beat.

max - min = 120 - 50 = 70 cm3
0
#6
I have my year 12 exams afters the easter holiday. I'm doing aqa biology. do you have any tips in terms of revision
0
X

new posts
Back
to top
Latest
My Feed

### Oops, nobody has postedin the last few hours.

Why not re-start the conversation?

see more

### See more of what you like onThe Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

### Poll

Join the discussion

#### Feeling behind at school/college? What is the best thing your teachers could to help you catch up?

Extra compulsory independent learning activities (eg, homework tasks) (2)
5.71%
Run extra compulsory lessons or workshops (7)
20%
Focus on making the normal lesson time with them as high quality as possible (4)
11.43%
Focus on making the normal learning resources as high quality/accessible as possible (3)
8.57%
Provide extra optional activities, lessons and/or workshops (11)
31.43%
Assess students, decide who needs extra support and focus on these students (8)
22.86%