Your kid sister is making a mobile representing the earth, moon, and sun for her grade schoolscience fair. The ruler is provided below to help you determine positions of the three hangingballs, of mass 15 g, 5 g, and 30 g, respectively. Of the five options provided, where is thehorizontal center of mass at which would youconnect a string to this mobile so that it wouldremain balanced when you hung it from the string?(The rods and strings all have negligiblemass compared to the balls.)

a) electrical > light, sound, and thermal< < < <

) the mechanical energy of the firefighter moving.< < < < a) electrical > light, sound, and thermal< < < <

c) both a and b.

the answer is a. the yacht traveled from the dock north to the 200-meter marker in the bay in less than 5 minutes, giving the passengers several more hours to fish.

im doing peak rn so sry if its wrong

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.