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.SilentPrincess IF-Rockerz
.SilentPrincess
.SilentPrincess

Joined: 31 March 2009
Posts: 7970

Posted: 29 March 2012 at 7:35am | IP Logged
Need urgent hlep:

You want to improve yourself in the high jump. In the training session should focus on both technique and agility training. Create a work plan for a 90 minute workout. write quite detailed on how to proceed in training.

Help anyone.. I'm clueless what to write and plan a working session for 90 min. Also keeping technique and agility in mind.


Siddhi_ IF-Sizzlerz
Siddhi_
Siddhi_

Joined: 27 January 2007
Posts: 23583

Posted: 29 March 2012 at 11:15am | IP Logged
Biology Help.
 
Right, I have to hand this homework in by Monday and I have not even started it because Im so confused and my Biology teacher is of no use because shes terrible at explaining and teaching :(
 
We had to do different activities over the same distance like walking, jogging, running etc. and record the time it took to cover that distance. Then we worked out the speed we were travelling for each activity and create a graph which I did:
 
 
Now we have these questions to answer based on this graph and Im confused:
 
1. Describe any patterns you can see in your results.
2. Are there any unexpected results?
3. Suggest reasons why there might be differences in the patterns shown.
4. How could you get better results?
5.Write a conclusion. Explain your conclusion using scientific knowledge about the effect of exercise on the body to explain the patterns in the calculated and measured. Your explanation should include why the two sets of data may be different.
 
6. The time a person takes to recover after exercise is often used as a measure of fitness. A program of activities involving measuring the time for recovery is one of the methods used by the army to judge the fitness of new recruits.
Plan an experiment that you could carry out with your class to measure their fitness.
 
I'd just like bullet points for each question guiding me as to what I could write. Anyone who could help me, this would be really appreciated. Thanks in advance.
 
-DONE.


Edited by siddhi209 - 06 April 2012 at 11:22am
akhl IF-Rockerz
akhl
akhl

Joined: 30 March 2007
Posts: 5248

Posted: 30 March 2012 at 11:48am | IP Logged
@siddhi209
1. The graphs for both the measured and the calculated pulse rates show that the purlse rate increases with speed.

6. Make sure the new recruits are relaxed and record their pulse rates.
Let all of them do an exercise.
Soon after the exercise, measure their pulse rates at regular interval, such as 30 seconds.
The time taken for the pulse rate to fall to the pulse rate when relaxed is the measure of fitness.

For others I need to know theory. So can you refer me to any web pages, which contain theory being taught in your class?

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Siddhi_

Siddhi_ IF-Sizzlerz
Siddhi_
Siddhi_

Joined: 27 January 2007
Posts: 23583

Posted: 30 March 2012 at 1:36pm | IP Logged
Originally posted by akhl

@siddhi209
1. The graphs for both the measured and the calculated pulse rates show that the purlse rate increases with speed.

6. Make sure the new recruits are relaxed and record their pulse rates.
Let all of them do an exercise.
Soon after the exercise, measure their pulse rates at regular interval, such as 30 seconds.
The time taken for the pulse rate to fall to the pulse rate when relaxed is the measure of fitness.

For others I need to know theory. So can you refer me to any web pages, which contain theory being taught in your class?

 
Thanks so much for the help with questions 1 and 6 :) I dont really know about any web pages that can link to the theory we have been doing. But here are two pages from our text book - all the theory we have been doing is based on and around this:
 
 
If you can help using the above scans then please do and if not, no worries. Thanks.
 
-DONE.


Edited by siddhi209 - 06 April 2012 at 11:23am
akhl IF-Rockerz
akhl
akhl

Joined: 30 March 2007
Posts: 5248

Posted: 30 March 2012 at 1:52pm | IP Logged
@Miggi,
For the manometer problem, there must be a diagram. Can you give me the link to the diagram? You have given only the initial values but not the final values after the gas is heated. May be the diagram will show the final values.


Miggi Groupbie
Miggi
Miggi

Joined: 02 June 2006
Posts: 142

Posted: 01 April 2012 at 7:51pm | IP Logged
hey akhl i figured out the answer thank u so much for your help :)
Miggi Groupbie
Miggi
Miggi

Joined: 02 June 2006
Posts: 142

Posted: 01 April 2012 at 7:53pm | IP Logged
if we observe 400 and 2000 base pair sequence in a sample of DNA which is tested for Alu element what does that mean?
SmilingPriya Newbie
SmilingPriya
SmilingPriya

Joined: 02 April 2012
Posts: 1

Posted: 02 April 2012 at 12:40am | IP Logged

Hi Akhl, 

I have the same question as Miggi however I was unable to answer it. It appears I cannot attach the image onto this document. It is simply a diagram of a manometer that has water.that is closed at one end and has a flask filled with gas at the other. The other value on the diagram is 1.0 cm, im not sure how you can use that. Thank you in advance :)

An experiment makes use of a water manometer attached to a flask.  Initially the two columns of water in the manometer are at the same level and the air pressure in the flask and both sides of the manometer is 1 atm.  The experiment is set up when the air temperature is 7 ?C.  As shown, the left side of the manometer is connected to the flask and the right side is capped so that the air at that end will be compressed when the flask is heated by a gas burner.  The cap is initially 15 cm above the water column (the accompanying diagram is not to scale for this).  The volume of the flask is 1 x 10^4 m3.  When calculating the change in the pressure associated with the heating of the gas in the flask, you can neglect the change in volume of the gas (air in this case) associated with the displacement of the water column in the manometer.  Calculate how many calories (cal) have been added to the flask through heating from the gas burner, given that the specific heat of the air is 20.8 (J/K)/mol. (Hint: use the ideal gas law to figure out the pressure change in both sides of the manometer tube: in one case the pressure is changing through temperature and in the other it is changing through compression.  Once you have the pressure change you can get the temperature change in the flask. Once you have that, you can figure out how much heat (Joules and then calories) has been added to the air in the flask). 


            

                                    


Edited by SmilingPriya - 02 April 2012 at 1:02am

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