Hook's law states that the relationship between the force F applied to a spring and the elongation/compression
of the spring (with respect to its equilibrium position) is
where k is the spring constant, and the negative sign simply means that the direction of the force is opposite to the displacement.
In our problem, the spring is stretched by
And so we can use Hook's law to find the spring constant (we can ignore the sign and consider only the magnitude of the force, 16 N):
Answer:
The ratio of the model size is 1 : 2000
Explanation:
Given
Real Diameter = 0.012 um
Scale Diameter = 24 um
Required
Determine the scale ratio
The scale ratio is calculated as follows;
Substitute values for real and scale measurements
Divide the numerator and the denominator by 0012um
Represent as ratio
<em>Hence, the ratio of the model size is 1 : 2000</em>
Answer: 
Explanation:
The <u>Heisenberg uncertainty principle</u> postulates that the fact each particle has a wave associated with it, imposes restrictions on the ability to determine its position and speed at the same time.
In other words:
It is impossible to measure simultaneously (according to quantum physics), and with absolute precision, the value of the position and the momentum (linear momentum) of a particle. Thus, in general, the greater the precision in the measurement of one of these magnitudes, the greater the uncertainty in the measure of the other complementary variable.
Mathematically this principle is written as:
(1)
Where:
is the uncertainty in the position of the electron
is the Planck constant
is the mass of the electron
is the uncertainty in the velocity of the electron.
If we know the accuracy of the velocity is 
of the velocity of the electron 
, then is:
(2)
Now, the least possible uncertainty in position 
is:
(3)
(4)
Finally:
Organ system is the correct response hope this helps
