It is reaction of ion exchange. Substances react in the melt. As a result we receive alloy of four salts.
CuS + 2AgNO₃ ⇄ Cu(NO₃)₂ + Ag₂S
All forces of energy are useful at home, like friction, friction can let us grip to the ground, or mechanical energy, used in cars because cars move, and computers same thing you move the mouse, type and do way more. Energy is always around us.
This is more of a physics explanation, but here we go.
Mass is a measure of how much "matter" is in an object. Weight is the force applied onto an object by gravity. Weight itself can be related to mass like this:

where g is a gravitational constant. For our purposes, it's defined by whatever planet you are on. Following this, we can demonstrate that mass is NOT the same thing as weight if we take two objects of the same mass and put them on different planets.
Let E refer to Earth and F refer to Mars

Following this, we can see clearly that weight is not the same as mass:

If weight was the same thing as mass, the two values would be the same, as the mass of the two objects is the same. But since weight is defined in the context of gravity, they are not.
We use radiowaves all the time because they are harmless. (as far as we know, although bees are dying and know one knows why, perhaps all the waves we use do have a negative effect)
Can I get a brainliest, please?
Answer:31
Explanation: Hope this helped.