A small radio-controlled car's motor rated at 6 watts output is capable of performing ________ Joules of work in 15 seconds.
Fill in the blank(s) with the appropriate word(s).
90
ninety
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Stars spend most of their lives
A) fusing hydrogen into helium in their cores B) slowly dimming as they die with no fusion occurring in their cores C) as slowly brightening protostars D) fusing helium into carbon in their cores
Exhibit 12-1
The figure below shows a graph of angular velocity versus time for a woman bicycling around a circular track.
?
?
Use this exhibit to answer the following question(s).
Refer to Exhibit 12-1. What is her angular displacement (in rad) in the first 8 minutes?
A. 0 B. ? C. 4? D. 8? E. 16?
A thick-walled metal pipe of length 20.0 cm has an inside diameter of 2.00 cm and an outside diameter of 2.40 cm. What is the total surface area of the pipe, counting the ends, in square centimeters?
A) 276 cm2 B) 277 cm2 C) 278 cm2 D) 279 cm2
The Shroud of Turin, the Iceman, and the Dead Sea Scrolls were dated by use of
a. Rubidium-87. b. Potassium-40. c. Carbon-14. d. Uranium-238.