The point P lies along the perpendicular bisector of the line connecting two long straight wires S and T perpendicular to the page. A set of directions A through H is shown next to the diagram. When the two equal currents in the wires are directed into the page, the direction of the magnetic field at P is closest to the direction of
a.
E.
b.
F.
c.
G.
d.
H.
e.
A.
e
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Pressure in a Liquid: A circular window 30 cm in diameter in a submarine can withstand a net maximum force of 5.20 × 105 N without damage. What is the maximum depth in a fresh-water lake to which the submarine can go without damaging the window? The density of fresh water is 1000 kg/m3.
A. 680 m B. 740 m C. 1200 m D. 750 m
A force of 451 N is applied to 111 kg box that has a coefficient of static friction of 0.450. What is the force of friction on the box?
A. 490 N B. 0.00 N C. 108 N D. 451 N E. 203 N
What is the difference between an E0 and an E7 galaxy?
A. The E7 has an oval shape and the E0 is circular. B. The E7 has a larger disk than the E0. C. There is no such thing as an E0 galaxy. D. The E7 has a circular shape and E0 is oval. E. The E7 has a smaller disk than the E0.
The root-mean-square speed (thermal speed) of a certain sample of carbon dioxide molecules, with a molecular weight of 44 g/mol, is 396 m/s
What is the root-mean-square speed (thermal speed) of water vapor molecules, with a molecular weight of 18 g/mol, at the same temperature? A) 253 m/s B) 396 m/s C) 421 m/s D) 506 m/s E) 619 m/s