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  Two parallel infinite sheets are 1 meter apart and have the surface charge densities shown.  Point P is to the right of sheet two.  What is the magnitude of the electric field at point P?

Charge q1 is placed on the x-axis at x = 3.0 m, and charge q2 is located on the y-axis at y = -1.0m.  Determine the electric potential at point A relative to zero at the origin (i.e. VA – VB).  

A protron (m = 1.67 x 10-27 kg, q= 1.6 x 10-19 C) moves at 5.0 x 105 m/s parallel to an electric field of 1.044 N/C in the positive x-direction.  How far has the protron moved after 0.1 seconds?    

How much heat is required for the isobaric expansion of 10 liters of nitrogen gas at 25oC when going from 10 to 25 liters at a pressure of 1 bar? You can assume ideal gas behavior.

If your client with Guillain-Barre reports having mild soreness from therapy the previous day, you should (choose 2): 

Today, hunting and gathering societies ________

The mouth of the river is up in the hills or in the mountains where it starts.

Ephemeral streams run continuously year round.

Fluvial landscapes that are early in their evolutionary progression have:

Suppose we want to solve the following linear programming problem:   The Going Home Club is holding another fundraiser, so they can finally (you guessed it) go home. They are selling brownie trays for $12 each, cakes for $15 each, and pies for $13. Each brownie tray requires 25 minutes of prep time, each cake requires 45 minutes of prep time, and each pie requires 20 minutes of prep time. The Going Home Club found a ton of bags of chocolate chips left over from their last fundraiser a month ago, so they want to make at least 80 brownie trays. On the other hand, they believe the cakes will be far more popular, so they want to make at least twice as many cakes as they do pies. With the size of the club, they believe they have 1000 minutes of prep time to spend on all the baked goods. How much of each type of baked good should the Going Home Club make in order to maximize their revenue?   Which of the following is NOT an appropriate variable for this linear programming problem?