When a rock becomes metamorphic, does it look the same as it did originally? explain.

It would not look like the original, because those are rock that have undergone certain changes over time due to extreme heat and pressure. Metamorphic stones can be formed in various ways, some of which are : the pressure deep under the Earth's surface may create them, or they could be created due to the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.

The answer is 4f======since electrostatic force is given by    we let f be the electrostatic force when  r = 1 m    if we let  denote the electrostatic force when the distance is decreased so that r = 0.5m, then    we established earlier that f = kq₁q₂. therefore    the force will now be 4f.