If the speed at which an object moves through a fluid increases, will the size of the frictional force that acts on it increase, decrease or stay the same?

A26 cm object is 18 cm in front of a plane mirror. a ray of light strikes the object and is reflected off the mirror at a 42-degree angle. what is the angle of reflection? degrees what type of image is formed? what is the size of the image? cm

Avoltaic cell converts chemical energy to

What happens to an isotope during radioactive decay?