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4 years ago

How are mitosis and meiosis similar?

Physics

2 answers:

AfilCa [17]4 years ago

5 0

Answer:

The correct answer is option D.

Both are forms of cell division that produces daughter cells.

Explanation:

Hello!

Let's solve this!

Mitosis is the cell division that produces daughter cells identical to the stem cell. In meiosis, instead, two daughter cells are produced, but with half the genetic material for each.

What they have in common is that both are cell divisions that produce daughter cells.

We conclude that the correct answer is option D.

Both are forms of cell division that produces daughter cells.

fiasKO [112]4 years ago

4 0

First year biology.

The answer is D. Each process results in the formation of Daughter Cells, except the process of Meiosis results in half the number of Daughter Cells, where Mitosis has Daughter Cells identical to the Parent Cell.

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A box of mass 20kg is pulled up an inclined plane by a force of 285N. Given that the value of the incline angle is 30 degrees an

docker41 [41]

Given :

Mass of box , m = 250 kg.

Force applied , F = 285 N.

The value of the incline angle is 30°.

the coefficient of dynamic friction is $\mu=0.72$ .

To Find :

The speed with which the box is moving with, assuming it takes 4 seconds to reach the top of the incline.

Solution :

Net force applied in box is :

$F=285 - mgsin\ \theta - \mu mg cos \ \theta\\ \\F=285-mg( sin \ \theta - \mu cos\ \theta)\\\\F=285 - 20\times 10( \dfrac{1}{2}+0.72\times \dfrac{\sqrt{3}}{2})\\\\F=60.29\ N$

Acceleration , $a=\dfrac{F}{m}=\dfrac{60.29}{20}=3.01\ m/s^2$ .

By equation of motion :

$v=u+at\\\\v=0+3.01\times 4\\\\v=12.04\ m/s$

Therefore, the speed of box is 12.04 m/s.

Hence, this is the required solution.

6 0

3 years ago

A cosmic ray proton moving toward the Earth at 5.00 10 m/s 7 × experiences a magnetic force of 1.70 10 N −16 × . What is the str

EastWind [94]

Answer:

Magnetic field will be equal to $B=3\times 10^{-5}T$

Explanation:

We have given velocity of proton $5\times 10^7m/sec$

Magnetic force experienced by proton $F=1.7\times 10^{-16}N$

Charge on proton $q=1.6\times 10^{-19}C$

Angle between field and velocity $\Theta =45^{\circ}$

Force in magnetic field is equal to $F=qBVsin\Theta$

So $1.7\times 10^{-16}=1.6\times 10^{-19}\times 5\times 10^7\times B\times sin45^{\circ}$

$B=3\times 10^{-5}T$

So magnetic field will be equal to $B=3\times 10^{-5}T$

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3 years ago

Two sheets of polarizing material are placed such that their polarizing axes are 90° to each other and no light passes through t

nekit [7.7K]

Answer:

Explanation:

Polarization In this case angle of incidence is not equal to angle of polarization, hence reflected light is partially polarized and transmitted light is also partially polarized. by reflection is explained by Brewster's law,

According to this when unpolarized light incident on glass plate at an angle is called as angle of polarizing the reflected light is plane polarized, and transmitted light is partially polarized. The plane of vibration of polarized light is having plane of vibrations perpendicular to plane of incidence.

4 0

3 years ago

A car moves from the point (3.0 m)x^ + (5.0 m)y^ to the point (8.0 m)x^ - (7.0 m)y^ in 2.0 s. what is the magnitude of the avera

Mandarinka [93]

8.0-3.0=5.0metres in the x direction
7.0-5.0=2.0 metres in the y direction
Use Pythagoras
25+4=29
$\sqrt[2]{29 }$
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=2.645m/s at an angle of 68.2 degrees to horizontal.... see below!
tan-1 angle = 5/2
angle=68.2 degrees

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4 years ago

A box is being dragged across the floor at a constant speed by a rope pulling horizontally on it. friction is not negligible. id

Elena-2011 [213]

Weight (W), the normal force( N), and the tension force( T )in the string will all be forces operating on the box.

<h3>What is tension force?</h3>

The tension force is described as the force transferred through a rope, string, or wire as opposing forces pull it.

The tension force is applied along the whole length of the wire, pulling energy equally on both ends.

A horizontally pulling rope is dragging a box across the floor at a consistent speed. Friction is significant.

Hence, the force acting on the box will be weight W, Normal force N, and the tension force T, in the string.

To learn more about the tension force refer to the link;

brainly.com/question/2287912

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2 years ago