Consider a force of 750 n (roughly the weight of an adult human). over what area (in cm2) would this force need to be applied in order achieve a solid pressure (stress) of 25 mpa (the pressure required to rupture average human skin)? [recall : 1 mpa = 106 pa , and 1 pa = 1 n/m2]

Explain what happens at the saturation point when adding salt to water at room temperature.

Which of the following forces require physical contact? tension air resistance friction magnetic force applied force

Why does the equilibrium position of the spring change when a mass is added to the spring? will the mass oscillate around the new equilibrium position of the spring or the previous position without a mass attached to the spring? if the equilibrium position of the spring changes by 20 cm (assuming no initial mass) when a mass is added to the spring with constant 4.9 kg/s^2, what is the mass of the object attached to the spring?