A long-distance swimmer is able to swim through still water at 4.0 km/h. She wishes to try to swim from Port Angeles, Washington, directly north to Victoria, British Columbia, a distance of 50 km
An ocean current flows through the Strait of Juan de Fuca from west to east at 3.0 km/h. In what direction (relative to north) should she swim to make the crossing along a straight line between the two cities? A) 37° west of north
B) 37° east of north
C) 41° west of north
D) 41° east of north
E) 49° west of north
E
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The large space telescope that has been placed into an Earth orbit has an aperture diameter of 2.40 meters. What angular resolution will this telescope achieve for visible light of wavelength ? = 4.80 × 10^?7 m?
a. 2.44 × 10^?7 rads b. 2.44 × 10^?4 rads c. 2.44 × 10^?3 rads d. 1.22 × 10^?6 rads e. 2.00 × 10^?6 rads
Due to our ozone layer, ultraviolet astronomy must be done from space
Indicate whether the statement is true or false
The statement that "heat energy cannot be completely transformed into work" is a statement of which thermodynamic law?
A) fourth B) zeroth C) second D) third E) first
If M = 2.0 kg, what is the tension in string 1?
A. 1.2 N B. 11 N C. 34 N D. 3.5 N E. 40 N