Commercial airplanes are sometimes pushed out of the passenger loading area by a tractor. (a) an 1800-kg tractor exerts a force of 1.75×104 n backward on the pavement, and the system experiences forces resisting motion that total 2400 n. if the acceleration is 0.150 m/s2 , what is the mass of the airplane? (b) calculate the force exerted by the tractor on the airplane, assuming 2200 n of the friction is experienced by the airplane. (c) draw two sketches showing the systems of interest used to solve each part, including the free-body diagrams for each

b.

explanation:

10.0

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide

r = ρ x length / area  

ρ = r x area / length  

ρ is in ohm-meters  

in basic units, it is m³kg/s³a²  

i think this is it.