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13. A simple pendulum of length L and mass M is initially at rest. You want to give it an initial kick so that it subsequently swings up by exactly […]

12. The acceleration due to gravity on the surface of the Earth is about six times its value on the Moon. If the density of the Earth is 1.67 times […]

11. Due to friction with molecules of the surrounding solution, particles sedimenting in a mixture reach terminal velocity when subjected to ultracentrifugation. The sedimentation coefficient (S) for a particle is […]

10. A satellite takes 24 hours to orbit the Earth. It is replaced for a newer one that is carrying more modern equipment making it 2 times lighter. The new […]

9. An iron bar and a brass bar of equal length and cross-sectional area, are joined at one end. A tensile force is applied to the free ends as shown. […]

8. Hydrophobic interactions originate from a. Coulombic forces b. Entropic forces c. Gravitational forces d. None of the above Introduction Hydrophobic interactions originate from entropic forces and drive key biological […]

7. Which of the following is true regarding the surface tension of plasma membrane? a. Surface tension of plasma membrane is more than pure lipid structures b. Surface tension of […]

6. The standard electrode potential for the half cell reactions are: Zn++ + 2e– → Zn, Eo = – 0.76 V Fe++ + 2e– → Fe, Eo = – 0.44 […]

5. Which of the following is correct about a closed electric circuit including a battery and a resistor? a. charges move through the circuit because the resistor supplies energy. b. […]

4. A nuclear reactors fuel rods are immersed in water, which acts as a coolant and a moderator. You notice a blue glow around the fuel rods. This is due […]