All categories

2 years ago

2. What gravitational attraction does the moon have on the earth? (mass of earth is 6 x

Physics

1 answer:

lions [1.4K]2 years ago

7 0

Answer:

Given that,

Mass of the Earth m

=6×10

Mass of the Moon m

=7.4×10

Distance between the Earth and the Moon d=3.84×10

km=3.84×10

Gravitational Constant G=6.7×10

−11

/kg

Now, by using Newton’s law of gravitation

(3.84×10

)

6.7×10

−11

×6×10

×7.4×10

14.8225×10

297.48×10

F=20.069×10

F=20.1×10

Hence, the gravitational force of attraction is 20.1×10

You might be interested in

Over [174]

Answer:

$\boxed {\boxed {\sf 5.22 \ m}}$

Explanation:

Gravitational potential energy is the energy an object possesses due to its position. It is calculated using the following formula:

$E_P=mgh$

Where m is the mass, g is the acceleration due to gravity, and h is the height.

The object has a mass of 8.72 kilograms. Assuming this occurs on Earth, the acceleration due to gravity is 9.8 meters per second squared. The object gains 446 Joules of potential energy.

Let's convert the units of Joules. This makes the process of canceling units simpler later on. 1 Joule is equal to 1 kilogram meter squared per second squared. The object gains 446 J, which is equal to 446 kg *m²/s².

EP= 446 kg*m²/s²
m= 8.72 kg
g= 9.8 m/s²

Substitute the values into the formula.

$446 \ kg*m^2/s^2 = 8.72 \ kg * 9.8 \ m/s^2 *h$

Multiply on the right side of the equation.

$446 \ kg*m^2/s^2 = 85.456 kg*m/s^2 *h$

We are solving for the height, so we must isolate the variable h. It is being multiplied by 85.456 kg*m/s². The inverse operation of multiplication is division, so we divide both sides by this value.

$\frac{ 446 \ kg*m^2/s^2}{85.456 kg*m/s^2} = \frac{85.456 kg*m/s^2 *h}{85.456 kg*m/s^2}$

$\frac{ 446 \ kg*m^2/s^2}{85.456 kg*m/s^2} =h$

The units of kg*m/s² cancel, leaving meters as our unit.

$\frac{ 446 }{85.456 } \ m =h$

$5.2190601011 \ m =h$

The original measurements of mass and potential energy have 3 significant figures, so our answer must have the same.

For the number we calculated, that is the hundredths place. The 9 in the thousandths place to the right tells us to round the 1 up to a 2.

$5.22 \ m \approx h$

The object was lifted to a height of approximately 5.22 meters.

5 0

3 years ago

When an electric drill is used to bore a hole into a wooden beam, the user notices that the drill bit gets very hot.

Bess [88]

Wood is a bad conductor of heat. The drilling process involve heat generation between the drill and the wooden material that can not be dissipated away easily. With deep drilling the drill may get so hot that the chips come out in a state of smoking coal.

7 0

3 years ago

You need to remove a broken light bulb from a lamp. without a pair of gloves, you are likely to cut yourself on the jagged glass

mojhsa [17]

You have just demonstrated an insight learning. Internal insight occurs if one learned a new way without the help of environmental factors. In here, what the person initially learned that if one saw a broken light bulb from a lamp, he can be cut through the jagged glass if one does not wear a pair of gloves. And maybe because at the moment, the person could not find one, he felt using a cut potato to pick up the pieces of the broken lamp. This is a demonstration of insight learning. The person found a way to pick up the pieces of the broken lamp by using his instinct at the moment. The person is not influenced by an outside source to tell him to use a potato.

5 0

3 years ago

HELP I DONT HAVE MUCH TIME ILL time BRAINLIEST 10poINTSSSSSS HURYYYY

Soloha48 [4]

1.the sun must be lined up with the moon and earth all must be aligned for this to happen

6 0

2 years ago

Read 2 more answers

The velocity of a car is 65 m/s and it’s mass is 2515 kg. What is it’s KE?

Aloiza [94]

Example Problems. Kinetic Energy (KE = ½ m v2). 1) The velocity of a car is 65 m/s and its mass is 2515 kg. What is its KE? 2) If a 30 kg child were running at a rate of 9.9 m/s, what is his KE? Practice Problems. IN THIS ORDER…. Page 2: #s 6, 7, 8, 5. Potential Energy. An object can store energy as the result of its position.

4 0

3 years ago

Read 2 more answers