Given,
Initial Velocity (u) = 0 m/s
Final Velocity (v) = 25.9 m/s
Time (t) = 2.5 sec
avg. acceleration = ?
avg. acceleration = v-u/t
avg = 25.9/2.5 = 10.36 m/s²
avg = 10.36 m/s²
Answer:
Total time = 20 hours
Explanation:
Half life is the amount of time it takes for a substance to decay tohalf of it's original amount.
Half life = 5 hours.
We have to obtain the number of half lives to get the time required.
1st half life = 1/2
2nd half life = 1/4
3rd half life = 1/8
4th half life = 1/16
So ffour half lives.
Total time = number of half lives * Time of half life
Total time = 4 * 5
Total time = 20 hours
The same units describe the volume of anything.
At least in a logical, reasonable system of units of
measurement, they do.
There's no reason why you can't talk about a gallon of steel
or a cubic foot of water.