During science class Billy used litmus paper to determine the pH of an unknown liquid. The blue litmus paper turned red but there was no change in the color of the red litmus paper. The liquid Billy tested is probably

Explain why the tip of a sewing needle is sharp

Determine the change in electric potential energy of a system of two charged objects when a - 2.1-C charged object and a - 5.0-C charged object move from an initial separation of 420 km to a final separation of 160 km

What is true about scientific "law"? all experiments appear to "prove" the theory all predicted observations are verified the law is repeatable no exceptions to the law are known all of the above

Inside a torque converter, the one-way clutch allows the stator to rotate only in one direction. Technician A says that it will turn in the same direction as the output shaft. Technician B says it turns in the same direction as the impeller.

What is the action force of a flying bird?

A maroon plane has a takeoff speed of 88.3 m/s and requires 1635 m to reach that speed. Determine the acceleration of the plane

Ram is going to the library from his house. He goes 3meters to the East from his house and then goes 4meters North to get to the library. Calculate the displacement traveled from his house to the library and back to his home. a. 7meters b.

How are Saturn and Uranus similar? Neither planet has a tilted axis. They both rotate backwards. They both have rings. They are both found inside the asteroid belt.

What physical property makes the red light different from blue light, or radio waves different from microwaves?

describes how the color and texture of a surface affect absorption and reflection of solar radiation?