Which change would result in a stronger electromagnet?

a) reducing the number of batteries
b) increasing the voltage of the battery
c) substituting another metal for the iron core
d) decreasing the number of coils around the iron core.

Curious carl calculated the density of a cube to be 4.50 g/cm3. what is the density of the cube in g/l?

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

Marcella is a four-year-old girl who is a victim of emotional child abuse. based on the child and family services improvement and innovation act of 2011, which action should the government take for marcella? a. the state should arrest marcella’s abuser. b. the state should find a home for marcella as soon as possible. c. the state should enforce stricter laws in the area where marcella resides. d. the state should provide medical assistance to marcella.