(1 point) 5 Joules of work are done when stretching a spring from it's natural length to 14 cm beyond it's natural length. What is the force (in Newtons) needed to stretch the spring 14 cm?

How does convection affect our atmosphere? our layers of earth? our oceans?

The rigid beam is supported by the three suspender bars. bars ab and ef are made of aluminum and bar cd is made of steel. if each bar has a cross-sectional area of 450 mm2, determine the maximum value of p if the allowable stress is (σallow)st = 200 mpa for the steel and ( σallow)al = 150 mpa for the aluminum. est = 200 gpa and eal = 70 gpa.

1. a net force of 100 newton’s is applied to a wagon for 5 seconds. this causes the wagon to undergo a change in momentum of