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sineoko [7]
3 years ago
6

Where do babies come from

Physics
2 answers:
masha68 [24]3 years ago
7 0
Female when sperm for males enters the egg of a female or "sex"
12345 [234]3 years ago
4 0
Your dad has a seed and he plants it into your mom and out comes the baby 9 months later
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WILL GIVE BRAINLIEST.
Tanzania [10]

The product of (mass) x (acceleration) is equal to (force).

So if (force) doesn't change and (mass) changes, then
(acceleration) has to change in the other direction from (mass)
in order to keep their product constant.

If the (forces) on both wagons are equal but one wagon has
double the (mass) of the other, then the more massive wagon
has  (1/double)  =  1/2  the acceleration of the less massive one.
3 0
3 years ago
How long does it take for a spaceship to get to the moon.
Ugo [173]

Answer:

about 3 days

It takes about 3 days for a spacecraft to reach the Moon. During that time a spacecraft travels at least 240,000 miles (386,400 kilometers) which is the distance between Earth and the Moon. The specific distance depends on the specific path chosen.

Explanation:

no explanation

8 0
2 years ago
A neutron at rest decays (breaks up) to a proton and an electron. Energy is released in the decay and appears as kinetic energy
SashulF [63]

Answer:

5.444\times 10^{-4}

Explanation:

The momentum of the neutron before and after the decay  is the same since there's no external force.

P_{sys}=const\\\\P=mv\\\\K=0.5mv^2

#The neutron is initially at rest, so after the decay:

P_A+P_B=0\\\\P_A=-P_B

#After decay, the proton has +ve direction  with a velocity v_Awhile the electron moves in a negative direction with a velocity v_B

Therefore:

P_A=m_Av_A, P_B=m_Bv_B\\\\\therefore m_Av_A,=m_Bv_B

Let the energy released during the decay be Q:

Q=K_{tot}=K_A+K_B\\\\Q=K_A+0.5m_Bv_B^2\\\\Q=K_A+0.5m_B(\frac{m_A}{m_B})^2v_A^2\\\\\ But \ K_A=0.5m_Av_A^2\\\\\therefore Q=K_A+\frac{m_A}{m_B}K_A=K_A(1+\frac{m_A}{m_B})\\\\=Q=\frac{m_A+m_B}{m_B}K_A\\\\m_A=1836m_B\\\\\frac{K_A}{Q}=\frac{m_B}{1836m_B+m_B}=\frac{1}{1837}\\\\\frac{K_A}{Q}=5.444\times10^{-4}

Hence,Kp/Ktot is 5.444x10^(-4)

4 1
3 years ago
if 500 watts hit the surface of a solar panel every second and it generates 150 watts every second, how efficient is it?
alukav5142 [94]
The electrical efficiency is defined as the ratio between the useful power output and the total power input:
\epsilon =  \frac{P_{out}}{P_{in}}

In our problem, P_{out} = 150 W (power generated by the solar panel) and P_{in} = 500 W (power hitting the surface of the solar panel), therefore the efficiency of the panel is
\epsilon =  \frac{150 W}{500 W}=0.3
which corresponds to 30%.
4 0
3 years ago
A soccer ball is kicked from point Pi at an angle above a horizontal field. The ball follows an ideal path before landing on the
Nutka1998 [239]

Answer:

A. The horizontal velocity vector points to the right & equals v cos θ.

Explanation:

The motion describes a parabolic path, where the horizontal speed is constant and the horizontal velocity vector always points to the right and equals v*cos θ.

8 0
3 years ago
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