What is the value of universal gravitational constant?
A
6.022 x 1023
B
6.67 x 10-11 N m2/kg2
C
1.602 x 10-19 C
D
9.81 m/s2
Correct Answer: 6.67 x 10-11 N m2/kg2
6.022 x 1023 is the Avogadro number. 6.67 x 10-11 N m2/kg2 is the value of universal gravitational constant. 1.602 x 10-19 C is the charge of a proton. 9.81 m/s2 is the acceleration due to gravity on the surface of the earth.