6. A snowball that will be used to build a snowman is at the top of the only hill in town and weighs 22
N. If the Potential Energy of the snowball is 520 J, what is the height of the snowy hill?

Height of the snowy hill is 23.63 meter

Given that;

Weight of snowman = 22 N

Potential Energy of the snowball = 520 J

Find:

Height of the snowy hill

Computation:

Potential Energy = Weigh × Height

Height of the snowy hill = 520 / 22

Height of the snowy hill = 23.63 meter

Learn more:

link

23.64 m

Explanation:

Potential energy is given by

PE=mgh

Where m us the mass of snowball, g is acceleration due to gravity, h is height.

Also, the weight of an object is given by W=mg hence replacing mg in the above equation with W we obtain

PE=Wh

Making h the subject of the formula then

Substituting 520 J for PE and 22 N for W then

the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.