A train slowly climbs a 600-m mountain track which is at an angle of 10.0° with respect to the horizontal. How much altitude does it gain?
a. 86.8 m
c. 106 m
b. 104 m
d. 492 m
B
Physics & Space Science
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The velocity of longitudinal waves in a long brass rod is 3,260 m/s. If the density of brass is 8,470 
then what is the tensile modulus of brass?
A. 
B. 
C. 
D. 
E. 
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Seyferts are irregular galaxies with very strong radio emission
Indicate whether the statement is true or false
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In the process of crystallization, the remaining magma becomes _______.
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