I need help I will mark you brainlist and give you 5 stars please dont worry about explaining it

Explanation:

The horizontal displacement for each sphere is given by , where is horizontal velocity and is time. There exists no other variables that will affect the horizontal displacement (where each object lands). Since the horizontal velocity of B is exactly half of A, its horizontal displacement should also be half A, because the following factors:

-mass of spheres are the same

-time in air will be the same because both the spheres begin with no vertical velocity

-rotational inertia is negligible (implied in the problem that spheres have equal density)

Thus, if sphere A lands at some spot X, sphere B must land at some position .

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.