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What do you call differential equations wherein replacing the independent variable $x$ with $kx$ and the dependent variable $y$ by $ky$ gives the same differential equation? $k$ is a nonzero constant.

June 2021

It is the volume of a fluid per unit mass.

It is the property of a material to absorb energy from a continuously applied load until it ruptures.

It is the property of a material to absorb energy from a continuously applied load until it yields.

The current seismic provisions of the National Structural Code of the Philippines 2015 is adopted from which of the following standards?

In a truss, when three members meet a joint, two of the members are parallel, and the joint carries no load, the third non-parallel member is a zero-force member.

It is a branch of engineering mechanics that deals specifically with quantifying the motion of objects in terms of displacement, velocity and acceleration.

Which of the following has the same value as $\cos \theta$?

Which of the following equations is true for all angles $\theta$?

What do you call differential equations wherein replacing the independent variable $x$ with $kx$ and the dependent variable $y$ by $ky$ gives the same differential equation? $k$ is a nonzero constant.

What do you call differential equations having the form $$ y' + py = qy^n $$where $n = 1$, and $p$ and $q$ are functions of the independent variable?