HELP Earth’s mantle is

a.

a layer of molten metal.

b.

a layer of hot rock.

c.

a dense ball of solid metal.

d.

a layer of rock that forms Earth’s outer skin.

Aforce of 34n stretches a very light ideal spring 0.73 m from equilibrium, what is the force constant (spring constant) of the spring? (a) 47n/m (b) 38n/m (c) 53n/m (d) 25n/m

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

How to calculate voltage drop in a series circuit