What methods can be used to break down substances into elements

Joel decided to get in shape and train for a Fun Run. He ran 2,500 meters 3 times a week for four weeks, and then ran 5 kilometers on the day of the event. How many kilometers did he run in all those four weeks?

During a softball game, a batter hits a ball upward from an initial height of 3 feet. the height, in feet, of the softball is given by s (t) = - 16t+70t+3, where t is the time in seconds and t>=

The air temperature in a 28 in. 3 container with a free sliding piston is initially measured at 45 ° f. the temperature is raised to 200 ° f. what is the new volume of the container?

Why do responsible consumers use credit and credit cards?

What does an astronomer mean by "the universe"

Which of the following do not involve a direction? Check all that apply. A. Time B. Velocity C. Distance D. Acceleration

What does deltaX mean in physics?

Which activity involves using fossil fuels directly or indirectly? 1) eating fresh fruit for a snack 2) cooking hot dogs on a campfire 3) using crayons to color 4) walking to school

Which of the following objects would have the most inertia? A. A sphere with a radius of 5 cm and a mass of 34 grams. B. A sphere with a radius of 4 cm and a mass of 15 grams. C. A sphere with a radius of 8 cm and a mass of 27 grams. D.

A boy slides a book across the floor using a force of five and over a distance of 2M what is the kinetic energy of the book after he slides at assume there is no friction