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timofeeve [1]
3 years ago
9

Which of the following events happens first in the development of a new organism? A. A sperm fertilizes an egg to form a zygote.

B. A morula is formed. C. A blastocyst implants into the uterine wall. D. A zygote undergoes mitosis.
Physics
2 answers:
Ipatiy [6.2K]3 years ago
8 0

Definitely the answer is A

This process called Fertilization

Juli2301 [7.4K]3 years ago
5 0
The development of a new organism begins with answer A, the sperm must fertlize an egg to form the zygote.
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A radio station broadcasts at a frequency of 600 kHz. Knowing that radio waves have a speed of 300 000 000 m/s, what is the wave
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How many electrons are in the outer energy level of an atom of carbon
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4 electrons

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What is water potential???​
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2 years ago
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The kinetic energy of a 1000-kg roller coaster car that is moving with a speed of 20.0 m/s.
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8 0
3 years ago
The magnetic field at 8 cm distance from a long straight wire, carrying is 0.2x10^-5 T. How much is the electric current in the
FrozenT [24]

Answer:

The electric current in the wire is 0.8 A

Explanation:

We solve this problem by applying the formula of the magnetic field generated at a distance by a long and straight conductor wire that carries electric current, as follows:

B=\frac{2\pi*a }{u*I}

B= Magnetic field due to a straight and long wire that carries current

u= Free space permeability

I= Electrical current passing through the wire

a  = Perpendicular distance from the wire to the point where the magnetic field is located

Magnetic Field Calculation

We cleared (I) of the formula (1):

I=\frac{2\pi*a*B }{u} Formula(2)

B=0.2*10^{-5}  T = 0.2*10^{-5} \frac{weber}{m^{2} }

a  =8cm=0.08m

u=4*\pi *10^{-7} \frac{Weber}{A*m}

We replace the known information in the formula (2)

I=\frac{2\pi*0.08*0.2*10^{-5}  }{4\pi *10x^{-7} }

I=0.8 A

Answer: The electric current in the wire is 0.8 A

4 0
3 years ago
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