<u>Question:</u>
Two particles are separated by a distance d. At this distance, the strong interaction between them is much greater than the electrical interaction. What are the possible values of d?
a. extremely large values, such as the distances between the planets and sun
b. extremely small values, such as the distances between particles in an atomic nucleus
c. values between 1 mm and 1 m
d. values between 1 m and 1 km
<u>Answer:
</u>
The possible values of d are extremely small values, such as the distances between particles in an atomic nucleus.
<u>Explanation:
</u>
Any kind of interaction requires force between the interacting materials and that force tends to directly proportional to the product of mass of the materials and inversely proportionate to distance of separation of the interacting materials.
So, mostly based on the distance of separations, an interaction can be termed as strong or weak interactions. If the interacting particles are placed at higher distance, then the force acting between them tend to decrease leading to weak interaction.
An interaction stronger than electrical interactions can occur within subatomic particles. This leads to binding of the subatomic particles as an atom. So the distance d should be extremely small in subatomic particles like distance between the particles in an atomic nucleus.
Answer:
By throwing wrenches and screwdrivers away the side of spaceship he might be able to get back.
Explanation:
<em>Theory</em>
<u>The law of conservation of linear momentum</u>
The sum of linear momentum of a closed system under no external unbalance force remains the same.
Here consider the astronaut and the wrenches and screwdrivers as a system.
System in the empty space so no external unbalance force exerted on the astronaut. As the linear momentum is conserved when he throw wrenches and screwdrivers away form the space ship he will gain an equal momentum in the opposite direction. So he gains a certain velocity which he can use to drift towards the spaceship.
Explanation:
It is given that,
Distance between wires, d = 3.5 mm = 0.0035 m
Power of light bulb, P = 100 W
Potential difference, V = 120 V
(a) We need to find the force per unit length each wire of the cord exert on the other. It is given by :
Power, P = V × I
This gives,
(b) Since, the two wires carry equal currents in opposite directions. So, teh force is repulsive.
(c) This force is negligible.
Hence, this is the required solution.
D because if you are heavier and standing higher up then you will have greater potential energy than someone who weighs less and is standing at a lower height.