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4 years ago

When does fertilization take place

Physics

1 answer:

lutik1710 [3]4 years ago

6 0

IN HUMANS -

Since ovulation usually occurs around 14 days after the first day of your period, fertilization usually takes place in “week 3” of pregnancy. So, for the first two weeks of the gestational period, you're not actually pregnant at all.

IN PLANTS -

Fertilization takes part in the ovary of a female flower. Wind or pollinators carry the pollen from the male anthers to the female flower parts. After the pollen lands on the stigma, a pollen tube forms, and male reproductive material travels down the style and into the ovary, where it fertilizes an ovule.

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Answer:

the speed of the mass when it is halfway to the equilibrium position is 1.26 m/s

Explanation:

Given that;

mass of the object m = 1.20 kg

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now;

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f = 1.33 Hz

Therefore, the oscillation frequency is 1.33 Hz

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we solve for spring constant from the following expression;

T = 2π√(m/k)

k = 4π²m / T²

so we substitute

k = (4π² × 1.20) / (0.750)²

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Therefore, the spring constant is 84.22 N/m

c) determine the speed of the mass when it is halfway to the equilibrium position

So, at equilibrium, the energy is equal to K.E

such that;

1/2mv² = 1/2kx²

mv² = kx²

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v = √( kx²/m)

we substitute

v = √( 84.22×(0.15 m)²/ 1.2 )

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3 years ago

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To find the distance from the landing point, we should find first the time at which the projectile hits the ground. This can be found by requiring
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