Asmall toy car travels 2.0 meters in 120 seconds. what is the speed of the car?

Explanation:

Speed of an object is defined as the ratio of the distance covered by the object to the time taken to cover that distance.

Let be the speed of the object.

Let be the distance travelled by the object.

Let be the time taken by the object.

So,

s=

So,the speed of the car is

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.