Magnetic forces can be exerted between objects even when the objects are not touching . in the sense , magnetic forces are similar to which type of force? its weight force

Electrostatic force and force of gravity

Explanation:

Magnetic forces can be exerted between objects even when the objects are not touching - we say that magnetic forces are non-contact forces.

There are several examples of non-contact forces in physics. Two of the most relevant ones are:

- Electrostatic force: it is the force exerted between two charged particles. Its magnitude is given by

where k is the Coulomb's constant, q1 and q2 are the magnitudes of the two charges, and r is the separation between them. The force is repulsive if the charges have the same sign and attractive if they have opposite signs

- Force of gravity: this is the force exerted between any pair of objects with mass, and its magnitude is

where G is the gravitational constant, m1 and m2 are the two masses, and r is the separation between them. This force is always attractive.

Both forces have an infinite range and they act at a distance, so the object do not need to touch in order to experience the force.

0.19 m/s and 0.45 m/s

i am pretty sure it is c because when people are closer together, they cannot move as freely. picture being in a mostly full elevator, for instance. the people are right next to you, and you can barely move.