Which device converts chemical energy directly into electrical energy? A.

A battery

B.

A generator

C.

A light bulb

D.

A motor

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

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

A10 kg box initially at rest is pulled 18 meters across a horizontal, frictionless surface by a 40 n force. what is the block’s final velocity over the 18 meters?