The signal sequence xi with duration nx = 4 and values (-1, 1, -1, 1) is padded with six 0’s to produce xpi with duration nxp = 10 and values (-1, 1, -1, 1, 0, 0, 0, 0, 0, 0) has power spectrum Sxpk. The k=0 value equals Sx90=______

Fill in the blank(s) with the appropriate word(s).


Xp0=?xpi = 0 ? Sxp0 = |Xp0|2= 0

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How many 12.7 cm by 15.24 cm plates can be cut from this plate?


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Australian Koala bears are thought to have a mean height of 21 in. and a standard deviation of 3 in. You plan to choose a sample of 55 bears at random. What is the probability of a sample mean between 20 and 22? How many bears in the sample are likely to be taller than 25 in.?

What will be an ideal response?

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Calculate the time for one cycle of an alternating wave if the frequency is measured at 120 Hz.

What will be an ideal response?

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The ________ is moved toward the relay electromagnet when the relay is on

A) Armature B) Coil C) NC contact D) NO contact

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