Answer:
0.0016 cm
Explanation:
= Thermal coefficient of expansion of brass = 
= Thermal coefficient of expansion of glass = 
= Change in temperature = 
= Initial radius = 4 cm
Change in radius of material is given by

Difference in radii of the lid and jar

The size of the gap is 0.0016 cm or 0.000016 m
Explanation :
The interaction between two objects is termed as the collision. The collision can be of two types i.e. elastic collision and inelastic collision.
In this case, two identical carts travel at the same speed toward each other, and then a collision occurs. In an inelastic collision, the momentum before and after the collision remains the same but its kinetic energy gets lost.
After the collision, both the object sticks over each other and moves with one velocity.
Out of the given graph, the graph that shows a perfectly inelastic collision is attached. It shows that after the collision both the carts move with the same velocity.
Answer
given,


mass of book = 0.305 Kg
so, from the diagram attached below




computing horizontal component




θ = 62.35°
Answer:
(E) The two objects reach the bottom of the incline at the same time.
Explanation:
Given;
first object with mass, m
second object with mass, 5m
The acceleration of gravity for both object is the same = 9.8 m/s²
Since both objects have the same acceleration of gravity, and no external force due friction (frictionless inclined plane), they will reach bottom of the inclined at the time.
Thus, the acceleration due to gravity is constant for all objects regardless of their masses.
Therefore, the correct option is E;
(E) The two objects reach the bottom of the incline at the same time.
Answer- the correct option for the question would be choice number c which tells us about the natural selection process of human species.
Explanation- Evolution of psychology was studied under the given heads namely Behaviorism cognitive functionalism sociocultural Psychodynamic and structuralism.
On studying the facts under these prospects the evolution of psychology gives us the idea of the selection by nature of individuals and the pattern of their behavior shown in different aspects.