200 ug > 100 ug > 50 ug > 25 ug. That's 3 half lifes.
3 half lives x 67 hours/ half life = 201 hours
That is the half-life - the 6 hours in this case.That is the half-life - the 6 hours in this case.That is the half-life - the 6 hours in this case.That is the half-life - the 6 hours in this case.
scalar quantity is an physical quantity which has force but no direction. 2 examples of scalar: temperature( temp. has magnetude but it cant be expressed in an direction), time( time can be measured in second or hours but cant be given an direction as in 20 minutes south
Given that time only has one dimension, it doesn't make much sense to talk about time as a "vector". Well, technically you can have one-dimensional vectors, but those are simply called "scalars".In the Theory of Relativity, time is simply one dimension more, together with the three dimensions of space. In this case, time by itself is NOT a vector quantity, but a component of a vector quantity.
Time interval is a scalar quantity because it only has magnitude and no direction associated with it. It is measured in units such as seconds or hours.
Energy consumption or electrical energy is measured in kilowatt-hours (kWh). It is a unit used to represent the amount of energy used by an electrical device over time.
Since you can represent that with a single number, it isn't a vector - just a scalar.
The elapsed time IS 2 hours 15 minutes.
There are 6 hours of elapsed time between 9:00 AM and 3:00 PM.
The elapsed time is 7 hours and 25 minutes, therefore it is more than 7 hours.
3 hours 53 minutes
4 hours
elapsed hours and minutes
10 hours
2 hours, 25 minutes
The elapsed time between 4:00 and 1:30 is 9 and 1/2 hours.
2 hours and 51 minutes.
4 hours, 50 minutes