The prefixes which are abbreviated p, n, and T represent which of the following?
a. 10-2, 10-6, and 1015
c. 10-12, 10-9, and 1012
b. 10-9, 106, and 1010
d. 10-15, 10-6, and 1015
C
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A conducting bar of length L rotates with a constant angular speed of +2.0 rad/s about a pivot P at one end, as shown. A uniform magnetic field (magnitude = 0.20 T) is directed into the paper. If L = 0.40 m, what is the potential difference, VA ? VP?
a.
?12 mV
b.
+8.0 mV
c.
?8.0 mV
d.
+12 mV
e.
?16 mV
In an "atom smasher," two particles collide head on at relativistic speeds
If the velocity of the first particle is 0.741c to the left, and the velocity of the second particle is to the right (both of these speeds are measured in Earth's rest frame), how fast are the particles moving with respect to each other? A) 0.866c B) 1.091c C) 0.883c D) 0.788c
A beam with an overhang is loaded by a uniform load of 3 kN/m over its entire length. Moment of iner- tia Iz 5 3.36 3 106 mm4 and distances to top and bottom of the beam cross section are 20 mm and 66.4 mm, respectively. It is known that reactions at A and B are 4.5 kN and 13.5 kN, respectively. The maximum bending stress in the beam is approximately:
(A) 36 MPa
(B) 67 MPa
(C) 102 MPa
(D) 119 MPa
The majority of stars in the Milky Way appear to be in the ________.
A. Sagittarius A* region B. 6,000 K to 10,000 K temperature range C. O and B spectral type D. mass range of 0.1 to 0.5 solar masses