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Natasha_Volkova [10]
3 years ago
8

Newton’s third law of motion says that for every action there is a(n) and opposite reaction.

Physics
1 answer:
sattari [20]3 years ago
3 0

Answer:

for every action thete is an equal and opposite reaction

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A natural rock formation. Hope this helped.
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explain why conductors and insulators are both required to construct the electrical wiring in your home
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Conductors (something that allows electricity to flow easily) allow for electricity to flow easily. This would be the wires. If you don't have conductors, then you cannot have electricity flow.

Insulators (something that doesn't allow electricity to flow through it) is important because it allows us to be able to touch the cables or place them next to one another and not shock ourselves

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A concave mirror has a radius of curvature of 1.6m. Find the focal length
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Given,

Radius of curvature of concave mirror = 1.6m

We know that ,

Focal length = radius/2

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A force of 10 lb is required to hold a spring stretched 4 in. beyond its natural length. How much work W is done in stretching i
Sunny_sXe [5.5K]

Answer:

114.44 J

Explanation:

From Hook's Law,

F = ke................. Equation 1

Where F = Force required to stretch the spring, k = spring constant, e = extension.

make k the subject of the equation

k = F/e.............. Equation 2

Given: F = 10 lb = (10×4.45) N = 44.5 N, e = 4 in = (4×0.254) = 1.016 m.

Substitute into equation 2

k = 44.5/1.016

k = 43.799 N/m

Work done in stretching the 9 in beyond its natural length

W = 1/2ke²................. Equation 3

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Substitute into equation 3

W = 1/2×43.799×2.286²

W = 114.44 J

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3 years ago
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Frequency is measured in units of reciprocal time.
Period is measured in units of time.
Phase is a number without units that represents a fraction of a wave.

None of these is measured in meters, so none of them can be the answer.
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Amplitude is a quantity that's measured at one or two points in the same wave.
The question is talking about points on consecutive waves.

<em>Wavelength is</em> the only choice left.  That must be it.

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