Which of the following copper alloys can be precipitation hardened to a relatively high yield strength?
(a) Beryllium copper
(b) Cartridge brass
(c) Copper nickel
(d) Aluminum bronze
(a) Beryllium copper
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Sit on the floor with your legs straight out, raise your straight arm out with your thumb up such that your thumb aligns with one of your big toes, rapidly blink your left and right eye, and observe how your big toe appears to shift positions. This demonstration is an example of _________________
a. Newton's first law b. uniform circular motion c. parallax d. retrograde motion
The pressure in a gas is the result of the momentum transfer that occurs when the molecules bounce from the walls of the container
Indicate whether the statement is true or false
A light bulb used in a slide projector draws a current of 6 amperes when operating on 120 volts.The power consumed by the light bulb in watts is
a. 0.05 b. 20. c. 720 d. none of the above.
The maximum value of the electric field in an electromagnetic wave is 2.0 V/m. What is the maximum value of the magnetic field in that wave? (c = 3.0 × 108 m/s)
A) 6.7 pT B) 6.7 mT C) 6.7 nT D) 6.7 ?T E) 6.7 T