Question

Table 13.3 A New Caution Magnets like the are heater, tratan some height (gva, become weak if properly. To How do the cars move? Move towards/ away from each other/ not move at all Position of the cars Front of car A facing the front of car B Rear of car A facing the front of car B Car A placed behind car B Rear of car B facing rear of car A Fig. 13.15 Magn heatin 132​

Answer 1

Answer:

A magnet is a material or object that produces a magnetic field. This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials, such as iron, steel, nickel, cobalt, etc. and attracts or repels other magnets.

Explanation:

Answer 2

The area of a solid is increased with an increase of temperature. It is called superficial expansion. ... The amount by which unit area of a material increases when the temperature is raised by one degree is called the coefficient of superficial (i.e. area) expansion and is represented by β (Greek beta).