Questions

_________ influences the rate of weathering and humus in soil formation.

Rate of work done is _______.

_________ is a natural electrical phenomenon characterized by the appearance of streamers of reddish or greenish light in the sky, especially near the northern or southern magnetic pole.

The work done by centripetal force is ______.

Calculate the frequency (in Hz) of a sound wave of wavelength 5 m travelling with a speed of 360 m/s.

Due to an acceleration of 4 m/s2 the velocity of a body increases from 10 m/s to 30 m/s in a certain period. Find the displacement (in m) of the body in that period.

Through which does light travel best?

If the resistance of a conductor is reduced to half its initial value, then the heating effect in the conductor will become ___.