Why is electric field a vector?

Who said "Atoms can neither be created nor destroyed"?

Which of the following has mechanical energy? Car battery Compressed spring Glowing incandescent lightbulb Nucleus of uranium atom

What do most composites and plastics have in common? a) They are electrically non-conductive. b) They are crystalline. c) They are based on a carbon molecular structure. d) They are malleable.

Adding or removing protons from an atom does what to the atom

3. A body starts moving from rest and attains the acceleration of 0.5 m/s2. Calculate the velocity at the end of 3 minutes and also find the distance travelled by it during that time.

Who was copernicus and what have he done for science?

The state of matter that has particles that slide by one another

The waves produced by earthquakes are known as seismic waves.

Select the correct answer. What is the function of polarized glasses? OA. to eliminate horizontally polarized light OB. to eliminate vertically polarized light c. to allow all light OD. to block all polarized light

Birds, squirrels, and chipmunks all living in the same tree, using the same resources, are an example of: