Answer:

Explanation:
We can use the following kinematics equation to solve this problem:

Solving for
:

The mass of each sphere is m=1.7kg
<h3>What is the mass?</h3>
The amount of matter in a particle or object is represented by the dimensionless quantity mass (symbolized m). The kilogram is the chosen unit of mass according to the International System (SI) (kg).
<h3>According to Given Information:</h3>
We'll apply the formula.
Now take note that the value we must discover is m1 = m2 = m. When m is solved for,
m=1.7kg is obtained using the formulas Fg = 2.0 109 N and G = 6.673 1011 N m2/kg2.
<h3>What is the force?</h3>
A force refers to the push or pull that such an object feels when it comes into contact with another object. A force is applied to each object when two things come into contact. The interaction between the two items stops when the force is no longer looks by either.
To know more about mass due to gravitation visit:
brainly.com/question/12528243
#SPJ4
Answer:
Nature and size of image:
the image is formed at the focus (F), the image is virtual,erect and highly diminished.
Answer:
Wolves are a keystone species because they are so important to the ecosystem that their removal causes a catastrophic disequilibrium.
Explanation:
Wolves are the predators available in the environment but they exist in relatively less number while comparing it with another species of animals. Wolves influence their pray which are influenced by plants. Thus, They are so important to the ecosystem that their removal causes a catastrophic disequilibrium.
1, 5 and 6 are the rocks your looking for, they make up the other ones on your list