A parallel-plate capacitor having plates 6.00cmapart is connected across the terminals of a 12.0Vbattery.

A. Being as quantitative as you can, describe the location of the equipotential surface that is at a potential of 6.00V relative to the potential of the negative plate. Avoid the edges of the plates.

d=

B. Do the same for the equipotential surface that is at 2.00V relative to the negative plate.

d=

C. What is the potential gradient between the plates?

E=

Select True or False to each of the following statements about this week's electric field mapping experiment. In order to receive credit for this question you must answer ALL statements correctly. NOTE: The number of attempts has been reduced on this question.
True False  Electric field lines can curve.
True False  All electric potemtials are measured with respect to the positive terminal of the power supply.
True False  The COM port of the digital multimeter (voltmeter) is connected to the positive terminal of the power supply via a banana to banana wire.
True False  The electric potential probe is connected to the positive terminal of the power supply.

1. The coils have the direction of the wrapped turns indicated on the top: if you look down from above the direction is clockwise. Using the right hand rule, what is the direction of the area vector for these loops of wire?

   		up
   		down
   		clockwise
   		counter-clockwise

Question 3

1. If the magnet is allowed to fall with its north pole down, that is, entering the coil first, in what direction does the magnetic field point?

   		up
   		clockwise (when viewed from above)
   		counter-clockwise (when viewed from above)
   		down

Question 4

1. Given the two directions in your answers to the previous two questions, what is the sign of the magnetic flux?

   		positive
   		negative
   		zero

Question 5

1. As the magnet enters, what will be the sign of the induced emf?

   		negative
   		zero
   		positive

Why do giant stars have much more narrow lines than main-sequence dwarfs?   Why are the stars that do not show
strong H Balmer lines either have either very low or very high surface temperatures?

Calculate the momentum p, kinetic energy K, and total energy E of an electron traveling at each of the speeds tabulated below.

Show how the terms of Bernoulli’s equation are related to Conservation of Energy?

A 5.40 g bullet is fired horizontally at two blocks resting on a smooth tabletop, as shown in the top figure. The bullet passes through the first block, with mass 1.20 kg, and embeds itself in the second, with mass 1.80 kg. Speeds of 0.340 m/s and 1.07 m/s, respectively, are thereby imparted to the blocks, as shown in the bottom figure. Neglecting the mass removed from the first block by the bullet, find the speed of the bullet immediately after it emerges from the first block. Then find the bullets original speed.

Given an example of a superconductor and describe in detail, how it is used in daily activities. Make it at least a paragraph please.

The position of a particle in cm is given by x = (3) cos 9?t, where t is in seconds.

Suppose there are two blocks constructed so that one is twice as massive as the other but they both are the same size and shape. If they are both dropped into free fall on, say, the moon, where there is no atmosphere, would they fall at the same rate? If they were dropped on Earth would they still fall at exactly the same rate, would the heavier one fall twice as fast, or something different? Explain what you think happens when the two blocks are dropped on Earth.

An internal explosion breaks an object, initially at rest, into two pieces: A and B. Piece A has 2.4 times the mass of piece B. The energy of 6400 J is released in the explosion. Part A Determine the kinetic energy of piece A after the explosion. Express your answer to two significant figures and include the appropriate units. Part B Determine the kinetic energy of piece B after the explosion. Express your answer to two significant figures and include the appropriate units.

There are three heat transfer mechanisms. Define each type and briefly explain how they work. Additionally define insulation and how it contrasts against these transfer mechanisms

You have a 40- lightbulb and a 100-W bulb.

1. Find the resistances of the 40-W bulb. Take that ΔV = 120 V.

2. Find the resistances of the 100-W bulb. Take that ΔV = 120 V.

3. If the two bulbs are connected separately, which of them will be brighter?

4. If the two bulbs are connected in series to a battery source, which of them will be brighter?

5. If the two bulbs are connected in parallel to a battery source, which of them will be brighter?