Physics, 29.07.2020 04:01 pinapunapula
Two 2.0 g plastic buttons each with + 65 nC of charge are placed on a frictionless surface 2.0 cm (measured between centers) on either side of a 5.0 g button charged to +250 nC. All three are released simultaneously.
a. How many interactions are there that have a potential energy?
b. What is the final speed of the left 2.0 g plastic button?
c. What is the final speed of the right 2.0 g plastic button?
d. What is the final speed of the 5.0 g plastic button?
Answer from: wendii87wh
A) 3 interactions
B) 2.78 m/s
C) 2.78 m/s
D) 0 m/s
Explanation:
Given Data :
plastic buttons ( 2 ) = 2.0 g each
charge on each plastic buttons = +65 nC
A) The interactions that have potential energy can be expressed as
V net = v1 + v2 + v3
V net = 0 +
hence the total interactions is (3)
B) The final speed of the left 2.0 g plastic button
U =
U = 0.0155 J
also U =
U = mv^2 = 0.0155 J
therefore ; v = = 2.78 m/s
C) final speed of the right 2.0 g plastic button = Final speed of the right 2.0 g plastic button
v = 2.78 m/s
D) The final speed of the 5.0 g plastic button
= 0 m/s
Answer from: Quest
Ibelieve that the correct answer is: c. along plate boundaries
Answer from: Quest
If its history of, then b) because a) implies only present day (now)
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