Three-fourth of a reaction is completed in 32 minutes. What is the half life

Solution: They will be meet again after LCM of both values at the starting point. To get the LCM we have to factorize the number. 18        = 2 × 3 × 3 12...

your the answer 1/32

The answer is 16 minutes. 

 t 2 = 2t 1 because for 3/4th of the reaction to complete time required is equal to two half lives

The answer is 30 mins

t2 = 2t1 because for 3/4th of the reaction to complete time required is equal to two half lives.

The answer is 30 mins.

The answer is 6.25%

(ii) 25 km------------------- Solution: Case I: Speed = 40 km/h Time = 15 min = 15/60 hour Distance = Speed × Time = 40×15/60=10 km Case II: Speed = 60 km/h Time = 15 min = 15/60 hour Distance...

The athlete’s fitness index score is calculated with the help of following formula. Fitness index score = (100 × test duration in seconds) divided by (2 × sums of heartbeats...