A speeding truck travels in the positive x direction. It hits a car traveling in the positive y direction. The vehicles are deformed and travel together at an angle with the positive x-axis. What can you say about the kinetic energy of the system after the collision?

Kinetic energy of the system is conserved.

B.

Kinetic energy of the system is partially used up in the deformation of the vehicles

Kinetic energy of the system is unrelated to the deformation of the vehicles.

C.

D.

Kinetic energy of the system is completely transformed to heat energy

B. Kinetic energy of the system is partially used up in the deformation of the vehicles.

Explanation:

In an inelastic collision, momentum is conserved, but kinetic energy is not. Kinetic energy is lost as heat or lost in the deformation of the objects.

d) physical means can be used to separate the components of air.

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