All of the following examples involve chemical energy except: A. working muscles using food b. burning a candle c. lightng a match. d. coasting downhill on a bike

A cylinder 1.00m tall with inside diameter 0.120 m is used to hold propane gas (molar mass 44.1 g/mol) for use in a barbecue. It is initially filled in with gas until the gauge pressure is 1.30 x 10^6 Pa and the temperature is 22 degree Celsius.

A hypothetical planet has a radius 2.7 times that of earth, but has the same mass. what is the acceleration due to gravity near its surface?

What are materials that do not allow electricity to pass through them easily.

How fast would a 2-kilogram object need to move to have the same kinetic energy as a 4-kilogram object moving at 8 meters per second?

A very thin layer of gold plating was placed on a metal tray that measures 25.22 cm by 13.22cm. The gold plating increased the mass of the plate by 0.0512 g. Calculate the thickness of the plating. The density of gold is 19.31 g/cm ^3

A gate in an irrigation canal is constructed in the form of a trapezoid 2 m wide at the bottom, 38 m wide at the top, and 2 m high. It is placed vertically in the canal so that the water just covers the gate.

A machine with a mechanical advantage of 10 is used to produce an output force of 250 newtons. What input force is applied to this machine

Why do you float in space

How does physical change affect the identity of a substance

A scientist pours grape juice on three identical white shirts He then uses three different cleaning products on the shirts and measures how clean they get what is the independent variable in this experiment