When baking soda and vinegar are mixed together bubbles form and the vinegar and baking soda are changed into new chemicals. this is an example of-

A) a physical change

B) a chemical change

Carl and Mike start a 3 mile race at the same time. If Mike ran the race at 6 miles per hour and finishes the race 10 minutes before Carl, how fast does Carl run?

A force of 110 N is applied horizontally to the handles of a lawnmower to move it at a speed of 0.80 m/s across a lawn. Find the power used to mow the lawn.

Why an object with a smaller mass has a larger acceleration than a larger mass if the same force acts on each?

Why is the earth's magnetic field important for us?

A thermogram identifies the warm and cool parts of an object by using

Which of the following is the medium that creates sand dunes? a. water b. wind c. ice d. gravity

How many centimeters are in 24 meters

A spring has a spring constant of 120 newtons per meter. Calculate the elastic potential energy stored in the spring when it is stretched 2.0 centimeters.

In pottery class, you throw a pot from a lump of wet clay. your pot's mass is 5.5 kg. after the pot is fired, it's mass is 4.9 kg. the density of wet clay is 1.60 g/cm3 and the density of fired clay is 1.36 g/cm3.

When you catch a baseball, what kind of work do you do, negative or positive? By catching the baseball, what do you change? Does the baseball gain or lose energy? What kind of energy?