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Bezzdna [24]
3 years ago
12

8. The mass of the sun is 1.99 x 1030 kilograms and its distance from Earth is 150 million kilometers (150 x 109 meters). What i

s the gravitational force between the sun and Earth?
please help
Physics
1 answer:
solmaris [256]3 years ago
4 0

Answer:

F=3.53\times 10^{22}\ N

Explanation:

Given that,

Mass of the Sun, m_1=1.99\times 10^{30}\ kg

The distance of Sun from the Earth, r=150\times 10^9\ m

We know that,

The mass of the Earth, m_2=6\times 10^{24}\ kg

We need to find the gravitational force between the Sun and the Earth.

The formula between two masses is given by :

F=G\dfrac{m_1m_2}{r^2}\\\\F=6.67\times 10^{-11}\times \dfrac{1.99\times 10^{30}\times 6\times 10^{24}}{(150\times 10^9)^2}\\\\F=3.53\times 10^{22}\ N

So, the gravitational force between the Sun and the Earth is 3.53\times 10^{22}\ N

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A snowboarder on a slope starts from rest and reaches a speed of 4.2 m/s after 7.3 s
Yakvenalex [24]

The car's acceleration will be 0.575 m/s².The unit of acceleration is m/sec².

<h3>What is acceleration?</h3>

The rate of velocity change concerning time is known as acceleration.

Given data;

Initial velocity, u= 0 m/s

Final velocity, v= 4.2 m/s

Time elapsed, t = 7.3 seconds.

To find ;

Acceleration, a

The acceleration when the change in velocity is observed by the formula as:

a= (v-u)/(t)

Substitute the given values:

a= (4.2-0)/(7.3)

a=(4.2)/(7.3)

a= 0.575 m/s²

Hence, the car's acceleration will be 0.575 m/s².

To learn more about acceleration, refer to the link brainly.com/question/2437624

#SPJ1

3 0
1 year ago
Compared to 2 kilograms of warm water, 2 kilograms of cold water will take up:
natka813 [3]
A because water has more volume when it's warmer
5 0
3 years ago
Read 2 more answers
Heat is best defined as
Scilla [17]
There can be someone who think answer should be B but temperature isn' proportional with heat. The formula is Q=m.c.t , so it isn't definetly temperature. So answer should be D. Because A and C connect with force etc.

7 0
3 years ago
How many does the UK have of nuclear power stations
DIA [1.3K]

Answer: 11

Explanation: In addition to nuclear reprocessing units at Sellafield and Urenco's Tails Management Facility (TMF) in Capenhurst, the UK has 11 active nuclear reactors in five locations (10 advanced gas-cooled reactors (AGR) and one pressurised water reactor (PWR)).

Please give brainliest or whatever brainlyest if this has helped :)

7 0
3 years ago
If a second planet were of the same radius R and made of the same material but had a hollow center of radius 0.50 R , what would
Artemon [7]

Answer:

g_2=\dfrac{7}{8}g

Explanation:

G = Gravitational constant

M = Mass of planet

R = Radius of planet

Acceleration due to gravity on first planet

g=\dfrac{GM}{R}

Assuming that the planets have the same mass density \rho

Density of first planet

\rho=\dfrac{M}{V}\\\Rightarrow \rho=\dfrac{M}{\dfrac{4}{3}\pi R^3}\\\Rightarrow M=\rho \dfrac{4}{3}\pi R^3

Density of second planet

\rho=\dfrac{M_2}{V_2}=\dfrac{M_2}{\dfrac{4}{3}\pi R^3-\dfrac{4}{3}\pi (0.5R)^3}\\\Rightarrow \rho=\dfrac{M_2}{\dfrac{4}{3}\pi R^3(1-\dfrac{1}{2^3})}\\\Rightarrow \rho=\dfrac{M_2}{\dfrac{4}{3}\pi R^3(1-\dfrac{1}{8})}\\\Rightarrow \rho=\dfrac{M_2}{\dfrac{4}{3}\pi R^3(\dfrac{7}{8})}\\\Rightarrow M_2=\rho\dfrac{4}{3}\pi R^3(\dfrac{7}{8})\\\Rightarrow M_2=M\dfrac{7}{8}

Acceleration due to gravity on the second planet

g_2=\dfrac{GM_2}{R}\\\Rightarrow g_2=\dfrac{GM\dfrac{7}{8}}{R}\\\Rightarrow g_2=\dfrac{7}{8}g

The acceleration due to gravity of the planet would be \dfrac{7}{8} times the acceleration due to gravity on the first planet.

3 0
3 years ago
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