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Leokris [45]
4 years ago
9

We know the moon circulates the Earth. Suppose the mass of the Earth and moon are 5.9742 x1024 kg and 7.36 x 1022 kg, whereas th

e radius of the orbit is 382171 km. What will the gravitational force between the Earth and the moon?
Physics
1 answer:
algol [13]4 years ago
4 0

Answer:

The gravitational force between two objects, one of mass M1 and the other of mass M2, is:

F = G*M1*M2/R^2

Where G is a constant:

G = 6.6x10^11 m^3*/(kg*s^2)

And R is the distance between the two objects.

M1 = 5.9742x10^24 kg

M2 = 7.36x10^22 kg

R = 382171 km = 382171000 m

Then the gravitational force is:

F = 6.6x10^-11 m^3*/(kg*s^2)*(5.9742x10^24 kg)*(7.36x10^22 kg)/(382171000 m)^2

F = 1.987x10^20 N

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Wavelength = (speed) / (frequency)

Wavelength = (330 m/s) / (1320/s)

Wavelength = (330/1320) m

Wavelength = 0.25 m

<em>Wavelength = 25 cm</em>

5 0
3 years ago
When it rises, air has more weight above it, and the higher pressure allows the air to expand.A.TrueB.False
vaieri [72.5K]

Answer:

False

Explanation:

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4 0
3 years ago
Four monitoring wells have been placed around a leaking underground storage tank. The wells are located at the corners of a 1-ha
Readme [11.4K]

Answer:

direction : West to East

magnitude : 6.0 * 10^-3

Explanation:

<em>Given data :</em>

Four ( 4 ) monitoring wells

location of wells = corners of 1-ha square

Total piezometric head in each well ;

NE corner = 30.0 m ;

SE corner = 30.0 m;

SW corner = 30.6 m;

NW corner = 30.6 m.

<u>Calculate for  the magnitude and direction of the hydraulic gradient </u>

first step ; calculate for area

Area = ( 1 -ha  ) ( 10^4 m^2/ha )

        = 1 * 10^4 m^2

Distance between the wells = length of side

      = √( 1 * 10^4 ) m^2

      = 100 m

Direction of Hydraulic gradient is from west to east because the total piezometric head in the west = Total piezometric head in the east

Next determine The magnitude of the hydraulic gradient

= ( 30.6 - 30 ) / 100

= 6.0 * 10^-3

<u />

<u />

8 0
3 years ago
an empty bottle has a mass of 24,25 grams and 86,55 grams completely full-filled with water. Then, water in the bottle is emptie
ladessa [460]
The density of a substance is the quotient we obtain when we divide its mass by the volume. The density is,
                          density = mass / volume
The mass of carbon tetrachloride is given to be 123.95 grams and that the volume is obtained by subtracting final weight of the completely full-filled with water bottle with the initial weight.
                              86.55 - 24.25 = 62.3 grams
Since the density of water is 1 grams/ cc. Then, the volume of the bottle is also 62.3 cc. The density is therefore,
                       density = 123.95 grams/ 62.3 cc = 1.99 g/cc
4 0
3 years ago
An object has a constant velocity of 20 m/s to the north, and there are two forces acting on it. What is this situation called
Llana [10]

When an object move with a constant velocity and there are forces acting on it, this is called unbalanced force. The forces acting on an object is a net force, which is capable of changing speed and/or direction of motion of an object. However, the two forces acting on the object can be added together to give the resultant force, which is a single force that has the same effect on the object as all the individual forces acting together.

5 0
3 years ago
Read 2 more answers
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