Use phasors to find the value for a sum of sinusoids suppose you want to find the sum of two sinusoidal voltages, given as follows: v1(t)=v1 cos(ωt+ϕ1) and v2(t)=v2 cos(ωt+ϕ2). if you stay in the time domain, you will have to use trigonometric identities to perform the addition. but if you transform to the frequency domain, you can simply add the phasors v1 and v2 as complex numbers using your calculator. your answer will be a phasor, so you will need to inverse phasor-transform it to get the answer in the time domain. this is an example of a problem that is easier to solve in the frequency domain than in the time domain. use phasor techniques to find an expression for v(t) expressed as a single cosine function, where v(t)=[100cos(300t+45∘)+500cos(300t− 60∘)] v. enter your expression using the cosine function. round real numbers using two digits after the decimal point. any angles used should be in degrees.

Determine the change in width a, height b, thickness t when a plate is subjected to the uniform distributed load and is made of material having modulus of elasticity e=230 gpa and poisson's ratio ν=1/3. given : a=400 mm and b= 300 mm also the uniformly distributed load in downward y direction of plate is 2 mn/m and in the positive x direction is 3 mn/m and t=20 mm

When temperature of a substance increases, of its particles increase resulting in more between particles. real world applications of thermal expansion absolute zero (-273 degrees c) is the lowest possible temperature on the kelvin scale. it is a measure of where a substance has no kinetic energy. heat is a process of the . energy flows spontaneously from a object to a until equilibrium is reached. heat is measured in heat is transferred throughis a method of heat transfer that occurs between particles of matter that are in direct contact with each other. are poor conductors that impede / reduce the rate of heat transfer. is a method of heat transfer that occurs in fluids (non-solids) by means of currents. real world application of convectiona method of heat transfer through electromagnetic waves. when energy moves from one object to another inside a closed system, no energy is or in the system in the transaction. systems will spontaneously move to a state of organized energy or high disorder over time called

This punnett square shows the cross between two pants. one parent has round seeds (rr). and the other parent has wrinkled seeds (rr) which best describes their offspring as shown in this cross?