Describe the difference between physical and chemical changes in terms of what happens to the molecules

A resting object exerts pressure equal to

At one instant a bicyclist is 41.0 m due east of a park's flagpole, going due south with a speed of 15.0 m/s. Then 27.0 s later, the cyclist is 41.0 m due north of the flagpole, going due east with a speed of 15.0 m/s. For the cyclist in this 27.

What units would you use to measure the amount of liquid inside a can of soda?

4. A car of mass 2000 kg is traveling at 45 m/s when the driver spots a policeman anead. i ne univer apprivo the brakes lightly for 3.0 seconds until he slows down below the speed limit. If the average force applied by the brakes was 1.

How does the orbital velocity of the earth compare to the of mercury?

What is the molar mass of an ideal gas if a 0.800 g sample of this gas occupies a volume of 200. mL at 50.0 oC and 720. mm Hg?

When unequal resistors are connected in parallel in a circuit,?

A piano tuner hears three beats per second when a tuning fork and a note are sounded together and six beats per second after the string is tightened. What should the tuner do next, tighten or loosen the string? Explain.

How much work is done? A Net Force of 9.0 N acts through a distance of 3.0 m in a time of 3.0 s. The answers are 3.0 J, 9.0 J, 27 J, 81 J.

Two capacitors are identical except that they have different insulators in the gap between the conductors. Capacitor A has an air filled gap while capacitor B uses a material with dielectric constant 3 to keep the conductors apart.