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3 years ago

How wide is the moon

2 answers:

7 0

The moon is very nearly a sphere (ball shape). We usually talk
about the "diameter" of a sphere, not its width.

The moon's diameter is about 2,159 miles or 3,475 kilometers.
That's about 27% (a little over a quarter) of the Earth's diameter.

lapo4ka [179]3 years ago

6 0

14.6 million square miles (38 square kilometers

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Two containers (A and B) are in thermal contact with an environment at temperature T = 280 K. The two containers are connected b

zmey [24]

Answer:

The maximum amount of work is $W = 1563.289 \ J$

Explanation:

From the question we are told that

The temperature of the environment is $T = 280\ K$

The volume of container A is $V_A = 2 m^3$

Initially the number of moles is $n = 1.2 \ moles$

The volume of container B is $V_B = 3.5 \ m^3$

At equilibrium of the gas the maximum work that can be done on the turbine is mathematically represented as

$W = P_A V_A ln[ \frac{V_B}{V_A} ]$

Now from the Ideal gas law

$P_A V_A = nRT$

So substituting for $P_A V_A$ in the equation above

$W = nRT ln [\frac{V_B}{V_A} ]$

Where R is the gas constant with a values of $R = 8.314 \ J/mol$

Substituting values we have that

$W = 1.2 * (8.314) * (280) * ln [\frac{3.5}{2} ]$

$W = 1563.289 \ J$

8 0

2 years ago

Which type of climate has no winter

Scilla [17]

Humid tropical climates are climates that have no winters.

4 0

2 years ago

Read 2 more answers

What planet has a red surface

muminat

Answer:

Mars has a red surface the sun is solar

star so the only thing left is mars

Explanation:

Hope this helped :)

6 0

3 years ago

Read 2 more answers

Why does sand feel hot under your feet on a sunny day at the beach?

zaharov [31]

Answer:

At a sunny day at the beach, the top of the sand is warm. The radiation from the Sun heats up the surface of the sand, but sand has a low thermal conductivity, so this energy stays at the surface of the sand.

6 0

2 years ago

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A train travels 57 kilometers in 3 hours, and then 87 kilometers in 2 hours. What is its average speed? km/hr

skad [1K]

Average speed (v) = total distance(d) / total time (t)
d = 57 + 87km = 144km
t = 2 + 3hrs = 5hrs
v = d÷t = 144÷5 = 28.8km/hr

3 0

2 years ago