Describe how to use an oscilloscope to take a measurement.
What will be an ideal response?
To use the oscilloscope, set the volts/cm selector switch to its highest setting. Connect the input signal to be observed, and rotate the volts/cm selector switch until the display is approximately two-thirds of the screen's height. Adjust the time-base controls to produce a stable trace and to select the desired number of cycles.
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At 80°C, water has vf = 0.0010291 m3/kg and vg = 3.407 m3/kg. The water occupies a volume of 0.05 m3. For each mass value below, determine whether the water is a compressed liquid, saturated liquid, saturated mixture, saturated vapor, or superheated vapor and the quality of the water:
(a) 60 kg (b) 5 kg (c) 0.025 kg (d) 0.0147 kg (e) 0.0095 kg Given: vf = 0.0010291 m3/kg; vg = 3.407 m3/kg; V = 0.05 m3 What will be an ideal response?
High HC is caused by an excessive amount of unburned ____________________.
Fill in the blank(s) with the appropriate word(s).
How does inserting a gene from a virus into a plant help protect the plant from the virus?
What will be an ideal response?
For a tank circuit to maintain oscillation, ____ feedback is required.
A. degenerative B. regenerative C. positive D. negative