Asubstance with a ph of 9 has a) no h30+ ions or oh- ions. b) more h30+ ions than oh- ions. c) more oh- ions than h30+ ions. d) the same number of h30+ ions as it does oh- ions.

The plum pudding model of the atom state that ?

Power can be defined as a. the distance over which work was done. b. how much work can be done in a given time. c. all the work in an given area. d. the energy required to do work.

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?