Creating electricity by exerting force on a crystal is called _________
A) Photoelectricity B) Electrochemistry C) Thermoelectricity D) Piezoelectricity
D
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Al cortar los cables del circuito de bifurcación en una caja de distribución de 6" para preparar la conexión de un aparato de iluminación, debe tener por lo menos _____ de longitud libre de conductor que sobresalga de la orilla exterior de la caja.
a. 3" (7,62 cm) b. 5" (12,70 cm) c. 6" (15,24 cm) d. 8" (20,32 cm)
The sliding T bevel is
a. used to test the accuracy of cuts c. a device used to lay out angles b. also called the carpenter’s square d. all answers are correct
A ping pong ball and a bowling ball are moving with the same momentum. Which has the greater kinetic energy?
a. The ping pong ball b. The bowling ball
Although interstate routes are considered the safest highways, drivers must be aware that they can sometimes be
A. poorly constructed B. snarled by traffic congestion C. longer than other routes D. all of the above