3 years ago

One principle of environmental law and policy in the U.S. is to make polluters pay . True or false ?

Physics

1 answer:

crimeas [40]3 years ago

5 0

In a way it’s true because you can get a ticket for getting caught littering

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posledela

B. Focus is the answer.

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Shalnov [3]

Recall that the dot product between two vectors $\mathbf a$ and $\mathbf b$ satisfies

$\mathbf a\cdot\mathbf b=\|\mathbf a\|\|\mathbf b\|\cos\theta$

where $\|\mathbf x\|$ denotes the norm of a vector $\mathbf x$ , and $\theta$ is the angle between the two vectors.

So if $\mathbf a=(2,3)$ and $\mathbf b=(4,2)$ , then

$(2,3)\cdot(4,2)=\|(2,3)\|\|(4,2)\|\cos\theta$

$\implies2\cdot4+3\cdot2=\sqrt{2^2+3^2}\sqrt{4^2+2^2}\cos\theta$

$\implies\cos\theta=\dfrac{14}{\sqrt{13}\sqrt{20}}$

$\implies\theta\approx29.7^\circ$

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3 years ago

How dose the circulatory systems interact with the digestive systems?

scoray [572]

The digestive system digests and makes nutrients out of food while the circulatory system distributes and circulates the nutrients i believe?

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The length of the assembly decreases by 0.006 in. when an axial a- force is applied by means of rigid end plates. Determine

Triss [41]

Answer:

(a) The magnitude of the applied force is (0.0001524k) Newton

(b) Corresponding stress in the steel core = (0.0001524k/area) Newton per meter square

Explanation:

(a) From Hookes law of elasticity,

Force applied = force constant (k) × compression

compression = 0.006 in = 0.006 × 0.0254 = 0.0001524 meter

Force applied = k × 0.0001524 = (0.0001524k) Newton

(b) Stress = Force applied (Newton)/area of steel core (meter square) = (0.0001524k/area) Newton per meter square

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arlik [135]

The density of a medium is the second factor that affects the speed of sound.

Please vote Brainliest (:

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