To solve this problem we will apply the concepts related to the conversion of units for which we will have that 1 slug is equal to 14.59kg. At the same time we will use Newton's second law for which weight is defined as the product between mass and acceleration (Due to gravity). This is then
A: Using the conversion ratio of slug to kilogram we have to,

Then


B: Using Newton's second law we have to,



B an open system flow both
Answer:
It is an open circuit as the current isn't flowing through the circuit as the wires aren't connected
Explanation:
First, we need to calculate the constant force, that is, the ratio between the applied force and the rubber stretch due to the application of the force:

Now, we can know how far will an 18N force stretch the rubber. From (1):

The work done by the external force on the rubber is equal to its elastic potential energy:
