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frutty [35]
3 years ago
15

What is the gravitational force between two identical 5000 kg asteroids whose centers of mass are separated by 100 m?

Physics
1 answer:
Alenkinab [10]3 years ago
5 0

Answer: 1.67 x 10^-7N

Explanation:

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According to newton's second law of motion, how much force will be required to accelerate an object at the same rate if its mass
guajiro [1.7K]

<u>D.</u>

For every action ther is an equal and opposite reaction.

equal in force, opposite in direction

5 0
3 years ago
3. The center of mass (or center of gravity) of a two-particle system is at the origin. One particle
nika2105 [10]

Answer:

B) (-2.0 m, 0.0 m)

Explanation:

Given:

Mass of particle 1 is, m_1=2.0\ kg

Mass of particle 2 is, m_2=3.0\ kg

Position of center of mass is, (x_{cm},y_{cm})=(0,0)

Position of particle 1 is, (x_1,y_1)=(3.0\ m,0.0\ m)

Position of particle 2 is, (x_2,y_2)=(?\ m,?\ m)

We know that, the x-coordinate of center of mass of two particles is given as:

x_{cm}=\frac{m_1x_1+m_2x_2}{m_1+m_2}

Plug in the values given.

0=\frac{(2.0\times 3)+(3.0\times x_2)}{2.0+3.0}\\\\0=6+3x_2\\\\3x_2=-6\\\\x_2=\frac{-6}{3}=-2.0\ m

We know that, the y-coordinate of center of mass of two particles is given as:

y_{cm}=\frac{m_1y_1+m_2y_2}{m_1+m_2}

Plug in the values given.

0=\frac{(2.0\times 0)+(3.0\times y_2)}{2.0+3.0}\\\\0=0+3y_2\\\\3y_2=0\\\\y_2=\frac{0}{3}=0.0\ m

Therefore, the position of particle 2 of mass 3.0 kg is  (-2.0 m, 0.0 m).

So, option (B) is correct.

8 0
3 years ago
uphill at a rate of 2.5 mi/h from the base of a 6-mi trail. At the same time, Edwin walks downhill at a rate of 3.5 mi/h from th
uranmaximum [27]
<h2>After 1 hour they meet.</h2>

Explanation:

Distance between them = 6 miles

Speed of uphill person = 2.5 miles per hour

Speed of downhill person = 3.5 miles per hour

Relative velocity = 2.5 - ( -3.5 ) = 6 miles per hour

We know

         Displacement = Velocity x Time

         6 = 6 x Time taken

Time taken = 1 hour

After 1 hour they meet.

4 0
3 years ago
Scientists have differing views on the origin of the universe. One view suggests the universe is expanding everywhere at the sam
GalinKa [24]
Oscillating model is the right answer
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3 years ago
What makes a source credible? O It relies on a single original source for facts. OIt is shared by family or a trusted friend. O
const2013 [10]
Im not sure but it might be the last option: it gives reasons to be believed and trusted
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2 years ago
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