You can hear sound through an open window from sources that are not in your line of sight because of diffraction
a. True
b. False
Indicate whether the statement is true or false
True
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If no external forces act on a moving object, it will
A) continue moving at the same speed. B) move slower and slower until it finally stops. C) come to an abrupt halt. D) none of the above
The SI units for viscosity are N·s/m2 . Another commonly used unit for viscosity is the poise, where 10 poise = 1 N·s/m2 . The poise is a fairly large unit, and it is more common to use the centipoise. Which of the following is equal to the centipoise?
a. 10?3 N·s/m2 b. 10?2 N·s/m2 c. 10?1 N·s/m2 d. 102 N·s/m2
A star of ten solar masses would probably stay stable on the main sequence only about 1/1000th as long as our Sun
Indicate whether the statement is true or false
When uranium-238 (Z = 92) is bombarded with a neutron, it can change into
a. uranium-237 b. uranium-239 c. protactinium-239 (Z = 91) d. neptunium-239 (Z = 93) e. none of the above