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1. The number of electrons in 18 ml of H2O is a. 60.23 x 1023 b. 6.023 x 1023 c. 3.011 x 1023 d. 0.6023 x 1023 Number of Electrons […]

15. Consider the following circuit, with r =15.0 Ω , R =10 Ω , and L = 250 mH. What is the frequency f at which the amplitude of the […]

14. Consider a Boson that can be in one of two states. How many distinct states can there be for a 3-particle system of such Bosons? a. 2 b. 4 […]

13. A box of volume V and temperature T contains a mixture of two ideal gasses A and B, whose molecules have masses mA and mB, respectively. Suppose there are […]

12. I place a block in a tub of mercury, and find that 1/4 of its volume is submerged. Now I pour just enough water so that the object is […]

11. A planet of constant density ρ and radius R rotates with period T. Let G represent the gravitational constant. What is the shortest possible period of rotation? Hint: think […]

10. Current is passed through this flexible loop of wire, which is placed on a frictionless insulating table. What will be the resulting effect on the shape of the wire? […]

9. A car of mass 1500 kg is mounted on four suspension springs, one for each wheel. When empty, the car oscillates vertically at a frequency of 3 Hz. When […]

8. I use a lens to form a virtual image of an object, as shown below. What must be done to record this virtual image onto camera film? a. It’s […]

7. I measure the strength of a signal from a radio tower to be 20 uW/m2 at a distance of 2 km from the tower. What is the total power […]