Mass<span> is the amount of matter in an object and </span>weight<span> is the measurement of the gravitational pull on an object. The </span>mass <span>of an object is the same no matter where it is, but the </span>weight <span>of an object changes with the location of that object.</span>
An atom that has equal number of protons and electrons is called a neutral atom. The answer is B.
Radiation has optimized a number of process in the plastics industry. Infrared emitters are the devices that uses radiation which are used in the said industry. These are devices which could be adjusted precisely depending on the product and the process. These emitters can make plastics welding within seconds. And since they can be adjusted precisely, it saves a lot of time, space and of course energy.
Answer:
i think it's D tbh, just cus it was the scientist who did the work
