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Vikentia [17]
3 years ago
5

A magnetic dipole

le" class="latex-formula"> placed in a magnetic field \vec{B} Explain why the potential U can be written as U=-\vec{m}\cdot\vec{B}.
Physics
1 answer:
ser-zykov [4K]3 years ago
7 0
We are asked to know the reason why magnetic dipole can be written as U = -m *B. The reason for this was that the negative sign is just showing or indicating the direction of the force. If it if negative, it means that the work done is opposite to the force field.
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Answer:

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8 0
3 years ago
1) Choose the answer choice that BEST completes the following sentence.
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3 years ago
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vazorg [7]
We make use of the equation: v^2=v0^2+2a Δd. We substitute v^2 equals to zero since the final state is halting the truck. Hence we get the equation           -<span>v0^2/2a = Δd. F = m a from the second law of motion. Rearranging, a = F/m
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lozanna [386]
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___________________________________________________________
Explanation:
___________________________________________________________
(70 km + 63 km) ÷ (2 + 1 ) =  133 km ÷ 3 =  " 44 \frac{1}{3} km "  ; 
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___________________________________________________________
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3 years ago
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-- As far as we know, the forces on the wheelbarrow are balanced.

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3 years ago
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