Aperson is trying to judge whether a picture (mass = 1.05 kg) is properly positioned by temporarily pressing it against a wall. the pressing force is perpendicular to the wall. the coefficient of static friction between the picture and the wall is 0.720. what is the minimum amount of pressing force that must be used?

Will you chech and finish these for me, because i am stumped with them.

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?