Question

can anyone help me by giving correct answers...

my exam is going on I need help with you all...

give this two answers correctly I will mark u as brainliest please it's urgent...​

no spamming or else you are reported...​



this is the last question...




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can anyone help me by giving correct answers...

my exam is going on I need help with you all...

give this two answers correctly I will mark u as brainliest please it's urgent...​

no spamming or else you are reported...​



this is the last question...













....










































....
















...​

Answer 1

Answer:

K = (x/x is a prime number less than 13)

.. = (2, 3, 5, 7, 11)

Answer 2

Answer:

(i) Given: m1=40kgf,m2=30kgf,h1=h2,t1=4minutes=4×60sec,t2=3minutes=3×60sec

Comparing work done by them:

Work done by girlWork done by a boy=m2gh2m1gh1=m2m1=3040=4:3

(ii) Comparing power developed by them:

Power developed by girlPower developed by boy=Work done by girl / time taken to climb up the stairs in secondsWork done by boy / time taken to climb up the stairs in seconds

                                   =3×6018004×602400

                                  =4×602400×180