UNIVERSE (LOOSELEAF):STARS+GALAXIES
6th Edition
ISBN: 9781319115043
Author: Freedman
Publisher: MAC HIGHER
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Chapter 2, Problem 41Q
To determine
To find: the right ascension and declination of the winter solstice.
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(a) At what speed (in m/s) will a proton move in a circular path of the same radius as an electron that travels at 7.85 x 100 m/s perpendicular to the Earth's magnetic field at an altitude where the field strength is 1.20 x 10-5 T?
4.27e3
m/s
(b) What would the radius (in m) of the path be if the proton had the same speed as the electron?
7.85e6
x m
(c) What would the radius (in m) be if the proton had the same kinetic energy as the electron?
195.38
x m
(d) What would the radius (in m) be if the proton had the same momentum as the electron?
3.7205
m
!
Required information
The block shown is made of a magnesium alloy, for which E = 45 GPa and v = 0.35. Know that σx = -185 MPa.
NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part.
25 mm
B
D
40 mm
100 mm
Determine the magnitude of Oy for which the change in the height of the block will be zero.
The magnitude of Oy is
MPa.
The rigid bar ABC is supported by two links, AD and BE, of uniform 37.5 × 6-mm rectangular cross section and made of a
mild steel that is assumed to be elastoplastic with E = 200 GPa and σy= 250 MPa. The magnitude of the force Q applied
at B is gradually increased from zero to 265 kN and a = 0.640 m.
1.7 m
1 m
D
A
B
2.64 m
E
Determine the value of the normal stress in each link.
The value of the normal stress in link AD is
The value of the normal stress in link BE is
250 MPa.
MPa.
Chapter 2 Solutions
UNIVERSE (LOOSELEAF):STARS+GALAXIES
Ch. 2 - Prob. 1QCh. 2 - Prob. 2QCh. 2 - Prob. 3QCh. 2 - Prob. 4QCh. 2 - Prob. 5QCh. 2 - Prob. 6QCh. 2 - Prob. 7QCh. 2 - Prob. 8QCh. 2 - Prob. 9QCh. 2 - Prob. 10Q
Ch. 2 - Prob. 11QCh. 2 - Prob. 12QCh. 2 - Prob. 13QCh. 2 - Prob. 14QCh. 2 - Prob. 15QCh. 2 - Prob. 16QCh. 2 - Prob. 17QCh. 2 - Prob. 18QCh. 2 - Prob. 19QCh. 2 - Prob. 20QCh. 2 - Prob. 21QCh. 2 - Prob. 22QCh. 2 - Prob. 23QCh. 2 - Prob. 24QCh. 2 - Prob. 25QCh. 2 - Prob. 26QCh. 2 - Prob. 27QCh. 2 - Prob. 28QCh. 2 - Prob. 29QCh. 2 - Prob. 30QCh. 2 - Prob. 31QCh. 2 - Prob. 32QCh. 2 - Prob. 33QCh. 2 - Prob. 34QCh. 2 - Prob. 35QCh. 2 - Prob. 36QCh. 2 - Prob. 37QCh. 2 - Prob. 38QCh. 2 - Prob. 39QCh. 2 - Prob. 40QCh. 2 - Prob. 41QCh. 2 - Prob. 42QCh. 2 - Prob. 43QCh. 2 - Prob. 44QCh. 2 - Prob. 45QCh. 2 - Prob. 46QCh. 2 - Prob. 47QCh. 2 - Prob. 48QCh. 2 - Prob. 49QCh. 2 - Prob. 50QCh. 2 - Prob. 51QCh. 2 - Prob. 52QCh. 2 - Prob. 53QCh. 2 - Prob. 54QCh. 2 - Prob. 55QCh. 2 - Prob. 56QCh. 2 - Prob. 57QCh. 2 - Prob. 58QCh. 2 - Prob. 59QCh. 2 - Prob. 60QCh. 2 - Prob. 61Q
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