Question

15 where necessary to points Q. 1. Write the answers to the following questions in one sentence. 1) What is sound?
2) What is momentum? Write the units of this amount in Si and CCS system Anributes
3) What are the elements in a nucleus?
(4) Write the name of each of the acidic and acidic substances used in daily
practice.
5) What is the main difference in the frequency of male and female voices? 6) While riding a motorcycle on winding roads, Manoj has both the movement and direction of the motorcycle What effect will change have on speed?
7) Complete the chemical reaction. CaCl, + Na2SO=
8) What is a global viewer? Write two names of natural viewers. Casoy sulfata Precip​

Answer 1

Answer:

physics, sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid or solid. In human physiology and psychology, sound is the reception of such waves and their perception by the brain.