Which of the following statements about a horse-shoe magnet is true? North Pole of the magnet is stronger than the South Pole.

Both the poles in this magnet are very close to each other.

It contains only one pole.

Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?

When can a theory be modified if a new type of technology allows for new observations that raise new questions? a-immediately, while the questions about the theory are being asked b-after new hypotheses related to the theory are tested in experiments c-only after the new observations disprove all parts of the theory d-while scientists begin to think about how the theory could improve

What is the quantity which is measured by the area occupied below the velocity- time graph?