When rust forms on a piece of iron, what evidence do you have that a chemical reaction has taken place?

Why are scientific journals such as nature and journal of the American medical association extremely important to scientific progress?

why does electrical process signals often take the form of a current instead of voltage? two specific reasons for this.

We inhaie oxygen and exhale dioxide in the result of a what change

The disks you will be using in the lab have the following parameters. All disks are solid with outer radius R1 = 0 0632 m and inner radius R2 = 0 0079 m The masses of the disks are: MT starless steel = 1357kg, MBottom starless stee,ã¼1.344kg.

A dog runs with an initial speed of 1.5 m/s on a floor. It slides to a stop with an acceleration of - 0.35 m/s^2. How long does it take for the dog to stop?

If the mass of a material is 48 grams and the volume of the material is 8 cm^3, what would the density of the material be?

Your family is moving to a new house. While lifting the box 1.5 m straight up you exerted a force of 200 N for 1 second. How much work is required?

Which best describes oil and water

Both the electrical force and the gravitational force between two objects share which relationship? They are directly proportional to mass. They are inversely proportional to the square of the distance. They are inversely proportional to charge.

During a baseball game, a player hits a a ball with a speed of 43m/s at an angle of 25∘ above the horizontal. When the player hit the ball, it was 1m above the ground, and after the hit, the ball flies straight toward the center field fence.