What is another way to describe the vector 100 m/s down

How many molecules are present in 3 mols of silicon dioxide (sio2)?

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

You are driving directly behind a pickup truck, going at the same speed as the truck. a crate falls from the bed of the truck to the road. (a) will your car hit the crate before the crate hits the road if you neither brake nor swerve? (b) during the fall, is the horizontal speed of the crate more than, less than, or the same as that of the truck?