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3 years ago

Choose the true statement(s) about binary fission in prokaryotic cells. There may be more than one correct answer.

Physics

1 answer:

hammer [34]3 years ago

6 0

Answer:

2. Binary fission frequency differs between species and is affected by environmental conditions

4. Binary fission results in offspring, which are genetically identical to the parent cell.

Explanation:

Binary fission is the process of asexual reproduction of single-celled organisms that consists of dividing a cell into two by mitosis, each with the same genome as the "mother cell" (with the same DNA or genetic material as the "mother cell" ).

The binary fission process is directly affected by genetics, that is, it varies from species to species. In addition, binary fission occurs depending on specific environmental conditions (such as water, optimal temperatures and also pH).

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If the voltage drop across the first resistor is 13.00V, then how many volts remain for the 2nd resistor?

Scorpion4ik [409]

Answer:

2+1

Explanation:

2+1

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Which phrase best describes a machine?

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Answer:

All of the above.

Explanation:

All Machines make work easier.

They can move objects.

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2. An alternating current is represented by the equation I=20sin 100mt.

Sladkaya [172]

Explanation:

The general equation of an AC current is given by :

$I=I_o sin\omega t$

Where

I₀ is the peak value of current

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$As\ \omega=2\pi f$

So,

$f=\dfrac{\omega}{2\pi}\\\\f=\dfrac{100\pi}{2\pi}\\\\f=50\ Hz$

We know that,

$I_{rms}=\dfrac{I_0}{\sqrt{2}}\\\\=\dfrac{20}{\sqrt{2}}\\\\I_{rms}=14.14\ A$

So, the frequency is 50 Hz and the maximum rms value of current is 14.14 A.

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3 years ago

A student is creating a table with properties of electromagnetic and mechanical waves.

katen-ka-za [31]

Answer:

The property of the wave marked X is related to the source of the wave

Explanation:

The source of of origin of waves

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Electromagnetic waves originate from the vibration of charged particles that gives off varying electric and magnetic fields

Mechanical waves are defined as waves that require a material medium such as air, water, metal, plastic, stretched leather, or wood to propagate

Mechanical waves originate from vibration of the particles of a medium

Sound waves which is a form of longitudinal mechanical waves that propagates by the vibration of the particles of a given medium about a point parallel to the direction of propagation of the wave.

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3 years ago

Use newton's laws to find an expression for the net external force acting on the car. ignore air resistance.

alexira [117]

Hi, thank you for posting your question here at Brainly.

Newton's second law of motion can be expressed as Fnet = ma. The next external for acting on, say for example, a moving car are the following:

*weight due to gravity (force down)
*friction force between he road and the car's tires (force opposite the car's direction)

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3 years ago