Find the minimum diameter the larger cylinder of a hydraulic press can have if it is to lift a 1.1 x 10^4 N car with an applied liquid pressure of 420 N/cm^2 in the smaller cylinder, having a diameter of 1.5 cm.

diameter = 5.78 cm .

Explanation:

According to Pascal's law, pressure will be equally transferred from smaller to larger cylinder.  

Let the radius of larger cylinder be r cm

cross sectional area = π r²

pressure created on larger cylinder = 1.1 x 10⁴ / π r²

This pressure must be equal to 420 N / cm²

1.1 x 10⁴ / π r² =  420

r² = 8.34

r = 2.89 cm

diameter = 5.78 cm .

compass can be used day and night, cloudy or sunny

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.