The symbol for lead is
a. Pb.
b. La.
c. Li.
d. Xe.
a
Physics & Space Science
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Two carbon cylinders have radii 2r and r and the first has length 2L, while the second has length L. What is the resistance of the first if the resistance of the second is 12 
A. 48 
B. 6
C. 12
D. 24
Physics & Space Science
Radium (A = 88) transmutes to radon (A = 86) by
A) beta emission. B) alpha emission. C) gamma emission. D) none of the above
Physics & Space Science
Jupiter's magnetic field is much stronger than Earth's, and has a magnetic tail that extends beyond the orbit of Saturn
Indicate whether the statement is true or false
Physics & Space Science
A concave mirror is also known as a diverging mirror
Indicate whether the statement is true or false
Physics & Space Science