Student Last Name__________________________First Name_____________________9/24/2014
1. Two point charges are placed on the x axis as follows:
Charge q1 = 1 mC is located at x = 1 m, and charge q2 = 2 mC is at x = -3 m.
What are the magnitude and direction of the net force exerted by these two charges on a third charge q3 = -1 mC placed on the origin?
2. Charge q1 = 3 mC is located on the x axis at x = -1 m, and charge q2 = 1 mC is located on the y axis at y = -0.5 m.
What are the magnitude, the x and y components, and the angle with the x direction of the net force exerted by these two charges on a third charge q3 = 1 mC placed on the origin?
3. A point charge of -4 nC is at the origin, and a second point charge of -1 nC is on the x axis at x = 6 m. Find the magnitude and direction of the electric field at each of the following points on the x axis:
(a) x = 4 m,
(b) x = 12 m.
4. A point charge Q = 1 mC is held fixed at the origin. A second point charge q = 2 mC with mass of 1 kg is placed on the x axis , 1 m from the origin.
(a) What is the electric potential energy U of the pair of charges?
(b) The second point charge is released from rest. What is its kinetic energy when its distance from the origin is
(i) 2m;
(ii) 20 m;
(iii) 200 m.
5. A 1 mF capacitor is connected to a power supply that keeps a constant potential difference of 1 V across the plates. A piece of material having a dielectric constant of 4 is placed between the plates, completely filling the space between them.
How mach energy is stored in the capacitor before and after the dielectric is inserted?
PHY 110. General Physics. 4CRS. 3 HRS. 2 LAB HRS. This course serves as an introduction to Physics, especially for students who are not science-oriented. A selected number of basic physical ideas are carefully examined and interpreted non-mathematically. The relevance of the scientist and his/her work to the lives of non-scientists is continually examined. tutorstate@gmail.com
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General Physics in Web Nets
General Physics in
- twitter: https://twitter.com/GeneralPhysics
- facebook: https://www.facebook.com/GeneralPhysics
- google+ community:https://plus.google.com/communities/107560119663318352211
- google+ page: https://plus.google.com/b/114989418791144444959/
- blogspot: http://generalphys.blogspot.com/
- twitter: https://twitter.com/GeneralPhysics
- facebook: https://www.facebook.com/GeneralPhysics
- google+ community:https://plus.google.com/communities/107560119663318352211
- google+ page: https://plus.google.com/b/114989418791144444959/
- blogspot: http://generalphys.blogspot.com/
Online Home Work
The online homework for extra-credits
Section 22LC http://connect.mheducation.com/class/v-znamenskiy-22lc
Section 23LC http://connect.mheducation.com/class/v-znamenskiy-23lc
If you execute the online homework for extra-credits then it is not necessary to execute the regular homework.
However regular homework together with online will give you more high extra credit
Section 22LC http://connect.mheducation.com/class/v-znamenskiy-22lc
Section 23LC http://connect.mheducation.com/class/v-znamenskiy-23lc
If you execute the online homework for extra-credits then it is not necessary to execute the regular homework.
However regular homework together with online will give you more high extra credit