Physics, 03.12.2019 15:31 mattmore0312

Is the displacement d(x, t)=cx2+dt2, where c and d are constants, a possible traveling wave?

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Ok, doesn't have the required math symbols I need to give you the best looking answer so we'll have to do this the best we can. In short, yes it could be a wave. A simple wave,ψ, is described by the equation
d²ψ/dx² - (1/c²)d²ψ/dt² = 0. The right side must be a nonzero constant, which is zero here. This is a basic wave equation. It says if the second partial derivative of a function with respect to space minus the second partial derivative of that function with respect to time, multiplied by a constant (1/c² here) equals a constant (0 here) then that function describes a wave. doesn't have a partial derivative symbol so I used "d". Also the c in my equation is the speed of the wave. Not necessarily the same c as in your equation.

Now let's look at your function. The second partial derivative of it with respect to x makes the t term 0 (it's a constant as far as x is concerned) and the x term becomes 2c. Doing the same thing for the partial derivative of it for t leaves 2d. These terms represent two constants, which if subtracted, as the wave equation requires, would lead to a constant on the right, which could be made zero if the coefficients c and d are chosen correctly.

Answer from: Quest

freezing

deposition

condensation

explanation;

melting also called fusion is the process where solid becomes liquid, sublimation is the process where solid becomes gaseous without first changing to liquid, deposition involves change from gaseous to solid state, freezing involves change from liquid to solid, boiling or evaporation involves change of liquid to gaseous state, while condensation is the change from gaseous state to liquid state.

endothermic reactions involves absorption of heat from the surroundings or the environment while exothermic reactions involves loss of heat energy to the surroundings.

in this case, sublimation, evaporation and melting are endothermic reactions (gain energy from the environment) while, freezing, deposition and condensation are exothermic (loss of energy to the surroundings) reactions.

Answer from: Quest

i think they are all correct

explanation:

they seem good

Check if answers are correcti will mark as the brainliest answer

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