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Ipatiy [6.2K]
3 years ago
13

Which of the following is a ferromagnetic material

Physics
2 answers:
Daniel [21]3 years ago
4 0
The answer is iron
hope this helps
nirvana33 [79]3 years ago
4 0
The Answer is D) Iron.. Hope I Helped :)
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Waves transport
Brilliant_brown [7]

Answer:

d)energy

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Compare and contrast what happens to an object's motion when balanced or
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3 years ago
You plan to take a trip to the moon. Since you do not have a traditional spaceship with rockets, you will need to leave the eart
hichkok12 [17]

Answer:

v = 3.5 \times 10^5 m/s

Explanation:

At some distance from the Earth the force of attraction due to moon is balanced by the force due to Moon

so we will have

\frac{GM_em}{r^2} = \frac{GM_m}{(d-r)^2}

now we have

\frac{d - r}{r} = \sqrt{\frac{M_m}{M_e}}

\frac{3.844\times 10^8 - r}{r} = \sqrt{\frac{7.36 \times 10^{22}}{5.9742\times 10^{24}}}

so we will have

r = 3.46 \times 10^8 m

Now by energy conservation

-\frac{GM_e}{R_e} - \frac{GM_m}{d - (R_e + R_m)} + \frac{1}{2}v^2 = -\frac{GM_e}{r} - \frac{GM_m}{d - r}

-6.26 \times 10^{8} - 13046 + \frac{1}{2}v^2 = -1.15 \times 10^6 - 1.28 \times 10^5

v = 3.5 \times 10^5 m/s

7 0
3 years ago
A temperature of 20°c is equivalent to approximately
Yanka [14]
C would be your answer
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3 years ago
Read 2 more answers
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