Consider a plane wave that is a superposition of two independent orthogonal plane waves that can be written as the real part of \vec{E} = E_1\exp\left[i\left(kz-\omega t\right)\right]\hat{i} + E_1 \exp\left[i\left(kz-\omega t + \pi\right)\right]\hat{j}E → = E 1 exp ⁡ [ i ( k z − ω t ) ] i ^ + E 1 exp ⁡ [ i ( k z − ω t + π ) ] j ^ where LaTeX: k,\,\omega,\,E_1,\textrm{ and }E_2k , ω , E 1 , and E 2 are all real. If E_1 = E_2, the tip of the electric field vector will describe a trajectory that, as viewed along the z-axis from positive z and looking toward the origin, is a

answer

procedural programming, object-oriented programming

explanation

procedural programming is a type of computer programming language that specifies a series of well structured steps and procedures   within its development period of time. it contains a systematic order of statements, functions and commands to complete a computational task or program. it is centered on creating procedures. while object oriented programming is a programming language that is centered on creating objects rather that actions and data rather than logic.. it has four principles which are inheritance, polymorphism, abstraction and encapsulation

chemical energy --> gravitational potential energy --> kinetic energy --> elastic potential energy --> gravitational potential energy

explanation:

when emma starts the hike, the chemical energy stored in her body is used to climb up the mountain, and so she gains gravitational potential energy (because at the end, she will be at a higher height h above the ground). then she goes bungee jumping: as she falls, this gravitational potential energy is converted into kinetic energy (because her speed increases as she falls down), until the point when the rope stretches, and she stops moving. at that moment, all the kinetic energy is converted into elastic potential energy due to the stretching of the rope. then, this energy is released because the rope returns to its natural length, and emma gains a small increase in altitude , so she gains some gravitational potential energy.