Scientists use a substance called lodine-131 to treat cancer. As lodine-131 undergoes radioactive decay and
emits beta particles, it kill cancer cells.
Which fundamental force is being used in this type of
treatment?

a.   mass number from atomic number

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.

pecialized keyboards

the speed of the cart after 3 seconds of low fan speed is ⇒ 54.0 cm/s.

the speed of the cart after 5 seconds of medium fan speed is ⇒ 120.0 cm/s.

the speed of the cart after 2 seconds of high fan speed is ⇒ 64.0 cm/s. 

just did the lab.