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The problem in the image asks about "Net Pressure" and states:

"You are standing on a scale. The air pressure at sea level is  \(1.0 \times 10^5 \, \text{Pa}\) (pascals) and you weigh 800 N. What is the net downward pressure on you due to the air pressure and your weight?"

To solve this, we need to consider both the atmospheric pressure and the pressure due to your weight. Here's how we can approach the problem:

1. **Atmospheric Pressure Contribution**: The atmospheric pressure acts on the entire surface area of your body. However, the net pressure due to atmospheric pressure is zero on your body because the pressure acts uniformly in all directions, canceling out. But it will contribute to the net pressure on the scale.

2. **Pressure Due to Weight**: The pressure due to your weight can be calculated using the formula:
   \[
   P_{\text{weight}} = \frac{\text{Force}}{\text{Area}}
   \]
   where Force is your weight (800 N) and Area is the area of the scale on which you are standing.

However, since we are looking for the total net pressure due to both atmospheric pressure and your weight on the scale, it simplifies to just considering the atmospheric pressure since the pressure due to your weight is already taken care of by the scale itself.

### Conclusion:
The net downward pressure on you (or more accurately, on the scale) would primarily be the atmospheric pressure because the pressure from your weight is already being accounted for by the scale, which measures force (N). Therefore, the net pressure on the scale is essentially the atmospheric pressure.

So, the **net downward pressure on the scale** is approximately \(1.0 \times 10^5 \, \text{Pa}\).

Would you like more details on this solution or have any questions?

Here are five related questions to expand your understanding:

1. What is the difference between pressure and force?
2. How does atmospheric pressure affect objects at different altitudes?
3. Can atmospheric pressure be different indoors versus outdoors? Why or why not?
4. What would happen to the net pressure if you were in a vacuum?
5. How is pressure distributed across different parts of your body when standing?

**Tip:** When dealing with pressure problems, always consider the area over which the force is applied, as pressure is force per unit area.

You are standing on a scale. The air pressure at sea level is 1.0 × 10^5 Pa (pascals) and you weigh 800 N. What is the net downward pressure on you due to the air pressure and your weight?

Understand how to calculate the net downward pressure on a scale due to atmospheric pressure and weight. The problem involves key physics concepts such as pressure, force, and equilibrium of forces. Ideal for students in Grades 10-12.

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