Which objects exert forces on eachother without contact
1. Electrical charges: Objects with opposite electrical charges exert attractive forces on each other, while objects with like charges exert repulsive forces.
2. Magnetized objects: Magnetic objects, such as two magnets, can exert forces on each other without physical contact.
3. Gravitational forces: Objects with mass exert gravitational forces on each other, even when they are not in physical contact.
4. Induced forces: Objects can also exert forces on each other through induced forces, such as when one object causes the polarization of a nearby object resulting in an attractive or repulsive force between them.