0out of 15 points if the continuous time signal y(t) = 2 cos (-2*π*56*t) is sampled at a frequency of 52 hz, and the corresponding discrete-time signal is then reconstructed at the same sampling frequency, what is the frequency of the resulting continuous time signal (in hz)? include the sign (- or +) of your answer, as determined directly from the frequency calculations. in other words, do not simplify using cos(-x) = cos(x)

Tungsten-filament lightbulb emits light based on the temperature of the filament. which phenomenon does this demonstrate?

An object starts from rest at point f and speeds up continuously as it moves around an oval. a. choose a point about 1/8 th of the way around the oval from point f, and label it point g. draw a vector to represent the velocity of the object at point g. b. determine the change in velocity vector   between points f and g.

Click the game tab at the bottom of the simulation and select level 1. (there is no seesaw balance for this part of the activity.) balance the first equation, and click check to see if you got it right. if you can’t balance it in the first try, you can try again. work through the five equations for level 1. click continue to go on to level 2, and later level 3. each level is more difficult than the one before. keep trying until all the equations are balanced. in one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.