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Anton [14]
3 years ago
7

A steady circular __________ light means drivers must stop at a marked stop line.

Physics
2 answers:
Dennis_Churaev [7]3 years ago
6 0

Answer:

b. RED

Explanation:

As we know that traffic signals are used to control the movement of traffic so that it is controlled.

Now we know that there must be a specific signal that people will know so that traffic must be controlled.

Here different colors have specific meaning which is given as

RED : Stop at the signal

YELLOW : Slow down or ready to move

GREEN : You can move the vehicle

so here as per this signal rule we can say that RED color signal means the driver has to stop at the stop line

elixir [45]3 years ago
5 0
B. red................
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uysha [10]

Answer:

The length of rod A will be <u>greater than </u>the length of rod B

Explanation:

We, know that the formula for final length in linear thermal expansion of a rod is:

L' = L(1 + ∝ΔT)

where,

L' = Final Length

L = Initial Length

∝ = Co-efficient of linear expansion

ΔT = Change in temperature

Since, the rods here have same original length and the temperature difference is same as well. Therefore, the final length will only depend upon the coefficient of linear expansion.

For Rod A:

∝₁ = 12 x 10⁻⁶ °C⁻¹

For Rod B:

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where,

β₂ = Coefficient of volumetric expansion for rod B = 24 x 10⁻⁶ °C⁻¹

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∝₂ = 24 x 10⁻⁶ °C⁻¹/3

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Since,

∝₁ > ∝₂

Therefore,

L₁ > L₂

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6 0
3 years ago
PLEASE HELP IM CONFUSED
tamaranim1 [39]
Its B. Hope this helped :) ♥♥
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9.(7 +1) Line I 9.7 +9.1 Line 2 The expression was rewritten using the Distributive Property 9. (7 + 1) equals 9. 7 which equals
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I really don't know what to say about this question I am not sure what to say about this

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3 years ago
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