The lowest density material from the Earth is expected to be found in the
A) inner core
B) mantle
C) outer core
D) crust
D
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A projectile is projected from the origin with a velocity of 25.0 m/s at an angle of 50.0 degrees above the horizontal. What is the time of maximum height of the projectile?
A. 1.95 s B. 2.03 s C. 2.67 s D. 3.01 s E. 3.45 s
When is the Sun directly overhead at noon in the continental United States?
a. March 21 b. June 21 c. July 21 d. never
Which of these are good insulators?
A) feathers B) wood C) snow D) all the above E) none of the above
A -4.0-?C charge is situated at the origin of an xy-coordinate system. What is the magnitude and direction of an electric potential at x = 6.0 m?
A) 1500 V along the +x-axis B) 6000 V along the +x-axis C) -6000 V with no direction D) 4000 V along the +x-axis E) 4000 V with no direction