Why does the dime transfer less momentum?
1 answer:
Answer:
This because the mass of the dime is very less = 2.268 grams only
Explanation:
Momentum :<em><u> It is product of mass and velocity of the objec</u></em>t.The affect of momentum can be observed by the force exerted <em><u>. Greater the change in momentum, greater the force exerted by the object</u></em>.
The formula of momentum(p) is :
Momentum depends upon :
1. Mass = Greater the mass of the object , greater the momentum . For example : you get more hurt by a heavy stone then a light ball when both hit you with the same velocity.
2. Velocity = Momentum of the object with more velocity is more. This application is used by the cricketers. While catching the ball , the fielder pushes his hand away. By doing this he decreases the velocity of the object. Hence the momentum decrease and the ball comes to catcher's hand easily.
The mass of dime = 2.26 gram So it has less momentum because of less mass.
Hence the force exerted or the momentum transferred by the Dime is very low .
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Answer: It will take 8.2 minutes until the concentration decreases to 0.055 M
Explanation:
The time after which 99.9% reactions gets completed is 40 minutes
Explanation:
Expression for rate law for first order kinetics is given by:
where,
k = rate constant
t = age of sample
a = let initial amount of the reactant
a - x = amount left after decay process
a) for completion of half life:
Half life is the amount of time taken by a radioactive material to decay to half of its original value.
b) Time taken for 0.085 M to decrease to 0.055 M
Thus it will take 8.2 minutes until the concentration decreases to 0.055 M