The boundary between two air masses is called a(n) ______________
Fill in the blank(s) with correct word
front
You might also like to view...
A drive shaft running at 2500 rpm has outer diameter 60 mm and inner diameter 40 mm. The allowable shear stress in the shaft is 35 MPa. The maximum power that can be transmitted is approximately:
(A) 220 kW
(B) 240 kW
(C) 288 kW
(D) 312 Kw
The half-life of radioactive Technetium-99 is 6.0 hours. Find the number of 99Tc nuclei necessary to produce a sample of activity 18 µCi. (1 Ci = 3.7 × 10^10 decays/second)
a. 1.2 × 10^9 c. 8.0 × 10^8 b. 3.4 × 10^11 d. 2.1 × 10^10
What minimum thickness of oil (n = 1.50) on the surface of water (n = 1.33) would give constructive interference for 550 nm light with normal incidence?
A. 78.0 nm B. 80.0 nm C. 92.0 nm D. 183 nm E. 275 nm
Enrico says that positive charge is created when you rub a glass rod with silk, and that negative charge is simply the absence of positive charge. Rosetta says that negative charge is created and that positive charge is the absence of positive charge. (She has heard that Ben Franklin should have reversed the signs he associated with the charges.) Which one, if either, is correct?
A. Enrico, because there really is only one kind of charge. B. Rosetta, because there really is only one kind of charge. C. Neither: although no charge is present originally, both types of charge are created through friction. D. Both: only one type of charge is created by friction at any one time. E. Neither: both negative and positive charge are present simultaneously in all solid materials on Earth and the process described involves a transfer of charge, not the creation of charge.