A 400-kg box is lifted vertically upward with constant velocity by means of two cables pulling at 40.0° on either side of the vertical direction. What is the tension in each cable?
A) 231 N
B) 400 N
C) 800 N
D) 2560 N
E) 3920 N
D
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How do scientists determine the age of the solar system?
A) radiometric dating of the oldest Earth rocks B) radiometric dating of meteorites C) radiometric dating of Moon rocks D) Theoretical calculations tell us how long it has taken the planets to evolve to their present forms.
The sedimentary rock known as ______________ consists of rounded pebbles cemented together by silica, calcium carbonate, or iron oxide
Fill in the blank(s) with correct word
Determine the number of significant figures in 100.01 x 103 meters
What will be an ideal response?
A gallon container is filled with gasoline. How many gallons are lost if the temperature increases by 25°F? (The volume expansion of gasoline is 9.6 × 10^-4 (°C)-1.) (Neglect the change in volume of the container.)
a. 2.4 × 10^-2 b. 1.3 × 10^-2 c. 3.6 × 10^-2 d. 4.8 × 10^-2 e. 9.6 × 10^-2