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2 years ago

When there is a Crescent Moon in the night sky, how much of the entire Moon’s surface is actually lit by the Sun? Why?

Physics

2 answers:

marissa [1.9K]2 years ago

4 0

1 Answer. 50% of the lunar surface is always illuminated by Sun

larisa [96]2 years ago

3 0

Answer:

As moon goes round the earth we see the 50% surface only on full moon nights.

In the picture inner moon shows the actual illumination and outer moons shows our view from Earth

Explanation: i cant get the picture to load so....

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1.Predict the frequency of a tuning fork that emits a sound with a wavelength of 0.385 m.

lina2011 [118]

Answer:

1.) Frequency F = 890.9 Hz

2.) Wavelength (λ) = 0.893 m

Explanation:

1.) Given that the wavelength = 0.385m

The speed of sound = 343 m / s

To predict the frequency, let us use the formula V = F λ

Where (λ) = wavelength = 0.385m

343 = F × 0.385

F = 343/0.385

F = 890.9 Hz

2.) Given that the frequency = 384Hz

Using the formula again

V = F λ

λ = V/F

Wavelength (λ) = 343/384

Wavelength (λ) = 0.893 m

The two questions can be solved with the use of formula

3 0

2 years ago

The creation of electricity in a coil of a wire through the movement of a magnet is called what?

emmasim [6.3K]

Answer:

D. Electromagnetic Induction.

Explanation:

6 0

2 years ago

As the temperature of water drops, it continues to give off thermal energy until it freezes. This is an example of.

jeka57 [31]

Answer:

The answer should be C

Explanation:

An exothermic process releases heat, causing the temperature of the immediate surroundings to rise. An endothermic process absorbs heat and cools the surroundings.

Please tell me if it is wrong

I would appreciate a brainliest

Have a great day!

7 0

2 years ago

Read 2 more answers

What determines an object’s thermal energy

Tems11 [23]

Answer:

temperature and mass

Explanation:

The higher the temperature of a given quantity of a substance, more is its thermal energy.

If a substance contains more mass, this also implies that the object has more particles in it . hence, it has high thermal energy.

Additional Information :

Temperature is a measure of the average kinetic energy of the particles of a substance.

The thermal energy of an object depends on three factors:

number of molecules in the object
temperature of the object.
thermal energy it has.

3 0

2 years ago

select all that apply the force of gravity a. changes slightly with the location on the earth b. decreases with height above sea

Reptile [31]

The answer to your question is C

7 0

2 years ago