The correct terms to fill in the blanks are solid and gas. The strongest interparticle attractions exist between particles of a solid and the weakest interparticle attractions exist between particles of gas. In a solid substance, the atoms are very close to each other and collision frequency is very high, Thus, attraction between particles is high. For a gas, the molecules are very far from each other to the point that they do not collide. Collision frequency is very small for a gas leading to a weak attraction between particles. An intermediate phase of these two is called the liquid phase, where the particles are far apart but not that far where collisions are more likely to happen.
Friction - force resisting the motion.
This force will finally stop him (change his initial velocity to zero)
Nonmetals because they are different from metals and and the elements to the right of the periodic table are not good insulaters
In the Newtonian theory of gravitation, the effects of gravity are always attractive, and the resulting force is calculated with respect to the center of gravity of both objects. The law of universal gravitation formulated by Isaac Newton postulates that the force exerted by a point particle with mass M on another with mass m is directly proportional to the product of the masses (and the Universal Gravitation Constant), and inversely proportional to the square of the distance (r) that separates them:
Therefore the correct answer is 2.
Answer:
True, the flow of energy through living systems can be modeled as food chains
Explanation:
A food chain shows how energy flows from one organism to another. In general, energy flows from the Sun to producers and then to consumers. The path is linear as
the energy present in one step is transferred to the next.
For example, grasses and scattered trees growing in a field,the grass and trees are producers that use sunlight to carry out
photosynthesis. Grasshoppers are herbivores that live in grassland ecosystems. They get energy
by eating grass and leaves.