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Verizon [17]
3 years ago
8

Which illustrates the law of conservation of matter? A. producers because they create new matter B. decomposers because they des

troy old matter C. dead organisms because they store old matter D. compost bins because they recycle matter into a new form
Physics
1 answer:
Klio2033 [76]3 years ago
7 0

D. compost bins because they recycle matter into a new form

Explanation:

  • The law of conservation of matter is about the creation and how matter is being transferred. According to the law, the matter cannot be destroyed. The matter should always be transferred from one form to another in the universe. There is never destruction of matter happens. There is also one more point to it, as it cannot be destroyed it also cannot be created.
  • Here in the options, option A tells us the creation which is not possible, option B says about the destruction of matter which is not true according to the law, C is about storing the matter which will not happen because its get transferred and D is the correct option because it talks about the recycle/ transfer of matter.
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2 years ago
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The question ask:
abruzzese [7]

Answer:

\theta=28.07^{\circ}

Explanation:

Speed of van, v = 28 m/s

Radius of unbanked curve, r = 150 m

Let \theta is the angle with the vertical. In case of banking of road,

T\ cos\theta=mg.............(1)

And

T\ sin\theta=\dfrac{mv^2}{r}..........(2)

From equation (1) and (2) :

tan\theta=\dfrac{v^2}{rg}

tan\theta=\dfrac{(28)^2}{150\times 9.8}

\theta=28.07^{\circ}

So, the string makes an angle of 28.07 degrees with the vertical. Hence, this is the required solution.

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3 years ago
The rotational inertia of your leg is greater when your leg is
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It would be bent, and your welcome

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3 years ago
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An ac generator has a frequency of 5.0 kHz and a voltage of 45 V. When an inductor is connected between the terminals of this ge
Ierofanga [76]

Answer:

Explanation:

Given that,

Frequency f = 5 kHz = 5000Hz

Voltage V=45V

Current In inductor I = 65mA

I = 65 × 10^-3 = 0.065A

We want to find inductance L

We know that the reactive inductance cam be given as

XL = 2πFL

Where

XL is reactive inductance

F is frequency

L is inductance

Then,

L = XL/2πF

From ohms law

V = IR

We can calculate the receive reactance of the inductor

V = I•XL

Then, XL = V/I

XL = 45/0.065

XL = 692.31 ohms

Then,

L = XL/2πF

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L = 0.02204 H

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The inductance of the inductor is 22.04mH

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3 years ago
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A competitive go-cart driver is traveling 32 m/s. He sees a caution flag go up, so he slows at a rate of -1.5 m/s^2 in 10.8 s. W
Svetllana [295]

Answer:

15.8 m/s

Explanation:

The following data were obtained from the question:

Initial velocity (u) = 32 m/s.

Acceleration (a) = – 1.5 m/s²

Time (t) = 10.8 s.

Final velocity (v) =?

Acceleration is simply defined as the rate of change of velocity with time. Mathematically, it is expressed as:

Acceleration (a) = [final velocity (v) – initial velocity (u)] / time (t)

a = (v – u) /t

With the above formula, we can obtain the final velocity of go-cart driver as follow:

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Acceleration (a) = – 1.5 m/s²

Time (t) = 10.8 s.

Final velocity (v) =?

a = (v – u) /t

– 1.5 = (v – 32) / 10.8

Cross multiply

(v – 32) = –1.5 × 10.8

v – 32 = – 16.2

Collect like terms

v = – 16.2 + 32

v = 15.8 m/s

Therefore, the final velocity of go-cart driver is 15.8 m/s.

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