Adding bleach to red food coloring causes the food coloring to lose its color. Is this a physical or chemical change? Explain.

The diagram shows two dogs pulling on a rope with constant but unequal forces in which Compass direction will both dogs likely move First dog - - facing east on west side 175 newtons Second dog--facing west on east side 200 newtons

You have two golf balls that differ only in their surfaces. one has dimples, while the other is smooth. if you were to drop the balls simultaneously from the top of the eiffel tower, which will hit the ground first?

How much work is done by pressure in forcing 9.1 m3 of water through a pipe having an internal diameter of 15 mm if the difference in pressure at the two ends of the pipe is 2.2 atm

If the atmospheric pressure at 30.0 km is 28.0 torr and the temperature is - 39.0 °c, what is the volume of the balloon when it bursts?

A transformer has 500 primary turns and 9.7 secondary turns. (a) If Vp is 120 V (rms), what is Vs with an open circuit? (b) If the secondary now has a resistive load of 13 Ω, what is the current in the primary and secondary?

I am looking for this answer : Which shows a correct order of steps in the scientific method? develop a hypothesis, analyze data, make observations, draw conclusions make observations, draw conclusions, develop a hypothesis, analyze data.

A gas in a piston is compressed doing - 439 j of work, and its internal energy increases by 318 j. how much heat flows? (be careful with + and -. + w = expansion. + q = added, + u = temp goes up) (unit = j)

A loop of wire is placed in a uniform magnetic field. (a) For what orientation of the loop is the magnetic flux a maximum? The plane of the loop is perpendicular to the magnetic field. The plane of the loop is parallel to the magnetic field.

Dr. Arenas is a scientist who has been trying to determine if increasing pressure will increase the sound that occurs when two chemicals explode.

Stephen buys a new mop he travels 3 km south and the. 4 km east and then 3km north how far does he need to go to get back. To where he started