Chet plans an experimental investigation to see how well a new fertilizer works on daisies. the fertilizer must be dissolved in water and delivered to the plants by spraying it onto the leaves and stems. to set up his control group for the experiment, chet should leave out the air. water. daisies. fertilizer.

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.

The great sandini is a 60.0-kg circus performer who is shot from a cannon (actually a spring gun). you don’t find many men of his caliber, so you him design a new gun. this new gun has a very large spring with a very small mass and a force constant of 1100 n/m that he will compress with a force of 4400 n. the inside of the gun barrel is coated with teflon, so the average friction force will be only 40.0 n during the 4.00 m he moves in the barrel. at what speed will he emerge from the end of the barrel, 2.50 m above his initial rest position?