3 years ago

Which of the following is an example of informal writing?

Physics

1 answer:

worty [1.4K]3 years ago

4 0

A personal letter written to a friend using 1st person

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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

As water rises through the troposphere and cools, it changes from a(n) ————- to a(n) ———— through the process of condensation; w

Hoochie [10]

Answer:

GAS, LIQUID, CLOUDS

Explanation:

Water can be in three states: solid, liquid and gas, passing from one to another depending on the pressure and temperature.

In this complementation exercise.

When the water cools down the GAS goes to the LIQUID state, these small drops unite and form the CLOUDS

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2 years ago

If a frictional force of 4 N is acting against a push of 53 N and the box that is being pushed is 4 kg, what is its acceleration

kifflom [539]

Answer:

gggggggggggg

Explanation:

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3 years ago

One type of cold remedy is an effervescent tablet that breaks down in water. When the tablet is placed in water, it forms gas bu

oksano4ka [1.4K]

Answer:

is a sign of a chemical change

Explanation:

The tablet reacts with the water to form carbon dioxide

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3 years ago

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Which is a warm countercurrent that periodically flows southward along the coasts of Ecuador and Peru

Maksim231197 [3]

The "El-nino current is awarm current that periodically flows southward along the coast of Ecuador and Peru. El-nino start out from the central and east central of the pacific, which include pacific coast of this south America. this ocean event is associated with fluctuation of inter tropical surface pressure pattern and circulation in the ocean.

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3 years ago

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