Biology, 13.03.2021 05:40 sindy35111
1. How many electrons make up a charge of -30 C?
2. What is the magnitude of the force a +25 C charge exerts on a +3.0
mC charge 35 cm. away?
3. A balloon rubbed against denim gains a charge of -8.0 C. What is
the electric force between the balloon and the denim when the two
are separated by a distance of 5.0 cm( Assume that the charges are
located at a point).
4. A small cork with an excess charge of +6 C is placed 0.12 m from
another cork, with carries a charge of -4.3 C.
a. What is the magnitude of the electric force between the corks?
b. Is this force attractive or repulsive?
c. How many excess electrons are on the negative cork?
d. How many electrons has the positive cork lost?
5. What are the magnitude of and direction of the electric force on an
electron in a uniform electric field of strength 2360 N/C that points
due east?
6. A downward force of 8.4 N is exerted on a -8.8 C charge. What are
the magnitude and the direction of the electric field at this point?
7. *What is the magnitude of the acceleration experienced by an
electron in an electric field of 750 N/C? How does the direction of
the acceleration depend on the direction of the field at that point?
8. *An electron is released from rest in a uniform electric field and
accelerates to the north at a rate of 115 m/s2
. What are the magnitude
and direction of the electric field?
9. Draw approximately, the electric field lines about two point charges
+Q and -3Q which are a distance l apart.
Answers: 2
Biology, 22.06.2019 05:10
1) what three conditions must be present for minerals to form through natural processes? 2) why are minerals considered inorganic substances? 3) how do oxides differ from other minerals that contain oxygen atoms? 4) how is a sulfide different from a sulfate? what makes native elements unique?
Answers: 2
Biology, 22.06.2019 06:10
You are working in the lab and are working with the same element but with varying isotopes of the element. you are working with c-11, c-13, c-14, and c-15. what is the average atomic mass of this element? (use periodic table) a- 12 b-15 c-14 d-13
Answers: 2
1. How many electrons make up a charge of -30 C?
2. What is the magnitude of the force a +25 C ch...
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