A car accelerates from rest at 12 meters per second per second. What is its speed 3 seconds after the car starts moving?

Hydrogen and helium are both members of?

If a balloon is taken outside on a very cold day, what will occur?

Alandscaper is shopping for landscaping materials. she wants to use materials through which water flows easily. which materials should she choose? check all that apply. clay gravel granite rocks with cracks loosely packed soil