Can you clarify that pressure value?lalahelp said:Homework Statement
A lid is put on a box that is 14 cm long, 12 cm wide, and 8.0 cm tall and the box is then evacuated until its inner pressure is 9.0 104 Pa.
lalahelp said:the pressure value is 67500 pa
The formula for calculating the force needed to lift a lid in Denver is F = m * a, where F is the force in Newtons, m is the mass of the lid in kilograms, and a is the acceleration due to gravity in Denver (9.81 m/s^2).
The higher altitude of Denver means that the acceleration due to gravity is slightly less (9.81 m/s^2 compared to 9.8 m/s^2 at sea level). This means that the force needed to lift a lid in Denver will be slightly less than at sea level.
Other factors that can affect the force needed to lift a lid include the weight and size of the lid, the material it is made of, and the angle at which it is being lifted. Friction between the lid and the surface it is resting on can also affect the force needed.
Yes, the unit of measurement for force is Newtons (N). However, other units such as pounds (lb) or kilograms (kg) may also be used depending on the context and preference.
Yes, the formula F = m * a can be applied to any object, not just lids. It is a general formula for calculating force based on mass and acceleration, which can be used in a variety of situations in physics and engineering.