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ozzi
2 years ago
11

A student did 24 J of work on a chair. She applied a force of 12 N and moved the chair 2 m. What else do you need to know to det

ermine the amount of power used?
Physics
1 answer:
ANEK [815]2 years ago
4 0

Answer:

time

Explanation:

power = work done ÷ time

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Identify the sentence that clearly states its meaning.
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<span>d) While taking a shower, I saw a little mouse scurry across the bathroom floor.

This sentence is ordered properly. </span>
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3 years ago
the body Will remain at rest or move at constant velocity unless acted by external net force are unbalance force​
Vikentia [17]

Answer:

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2 years ago
HELP ASAP PLEASE!!!
blagie [28]

Answer: A

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4 0
3 years ago
Read 2 more answers
In a long straight wire, what current is required to exert a 1.0μN force on a 1.0μC charge moving at 1.5×106m/s parallel to the
Bas_tet [7]

Answer:

Current in the wire is given as

i = 1.17 \times 10^{-7} A

Explanation:

magnetic field due to long current carrying wire is given as

B = \frac{\mu_0 i}{2\pi r}

so we have magnetic force on moving charge is given as

F = qvB

so we have

F = (1\times 10^{-6})(1.5 \times 10^6)(\frac{\mu_0 i}{2\pi (0.35)})

so we have

1\times 10^{-6} = 1.5 \times \frac{2 i}{0.35}

i = 1.17 \times 10^{-7} A

6 0
3 years ago
Only answer if you know all of them
lesya692 [45]
1)
The connections between neurons in the retina, specifically the connections referred to as “lateral inhibition,” help us see which of the following better?

<em><u>A) Contrast</u></em>
B) Faces
<span>C) Colors

2)
</span>Improving the contrast of an image (making the dark regions darker and the light regions lighter) helps us to identify:

<em><u>A) The edges of objects</u></em>
B) The center of objects
<span>C) The color of an object
</span>
3)
What assumption does our visual system make in order to see curved surfaces (domes, holes)?

<em><u>A) Light comes from above</u></em>
B) Curved surfaces are always evenly lit
<span>C) Curved surfaces are always easy to see, no assumptions are made
</span>
4)
Which part of the face does our brain pay the most attention to?

<u><em>A) Eyes and mouth</em></u>
B) Eyes and ears
<span>C) Eyes and chin
</span>
5)
If all these assumptions sometimes lead to mistakes, for example in these optical illusions, why do we make them?

A) It helps us see things faster
B) It helps us see things correctly
C) It helps us pay attention to what's important
<span><em><u>D) All of the above
</u></em>
</span>
Hope that helps :)
*the correct answers are bolded, italicized, and underlined.*
4 0
3 years ago
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