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Physics, 15.12.2020 19:30 andrwisawesome0
Question 7 of 10
Why do the north and south poles of these magnets attract each other?
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A. They have two different magnetic fields.
B. They have opposite electrical charges.
C. The magnetic fields of the two magnets repel each other.
D. The opposite magnetic poles of the two magnets face
each other.
Answers: 1
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The position of a crate sliding down a ramp is given by x=(0.05t^3) m, y=(1.7t^2) m, z=(6β0.85t^5/2) m, where t is in seconds. (a) determine the magnitude of the crate's velocity when t = 2 s. (b) determine the magnitude of the crate's acceleration when t = 2 s.
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Which of the following changes will result in a stronger electromagnet? a. using fewer coils of wire b. using a higher voltage c. using a shorter nail d. using a longer wire
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Question 7 of 10
Why do the north and south poles of these magnets attract each other?
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