A TEM is a nonoptical microscope. What does TEM stand for?
A. transverse electron magnifier
B. telescopic emulation machine
C. triple emission magnifier
D. transmission electron microscope
E. none of these answers are correct
D. transmission electron microscope
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A simple pendulum of length 2.00 m is made with a mass of 2.00 kg. The mass has a speed of 3.00 m/s when the pendulum is 30.0° above its lowest position
(a) What is the maximum angle away from the lowest position the pendulum will reach? (b) What is the speed of the mass when the pendulum is 45° above its lowest position?
A particle (q = +5.0 mC) is released from rest when it is 2.0 m from a charged particle which is held at rest. After the positively charged particle has moved 1.0 m toward the fixed particle, it has a kinetic energy of 50 mJ. What is the charge on the fixed particle?
a. -2.2 mC b. +6.7 mC c. -2.7 mC d. +8.0 mC e. -1.1 mC
An object that is negatively charged will
a. attract a rubber rod stroked with fur. b. attract a glass rod stroked with silk. c. be polarized. d. none of these
A charge of 25 nC is uniformly distributed along a circular arc (radius = 2.0 m) that is subtended by a 90-degree angle. What is the magnitude of the electric field at the center of the circle along which the arc lies?
a. 81 N/C b. 61 N/C c. 71 N/C d. 51 N/C e. 25 N/C