Question

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Answer 1

Answer:

1) Define the terms :-

(i) Newton's 2nd law of motion :-Netwons second law of motion can be formally stated as follows: The acceleration of an object as produced by a net force , in the same direction as the net force

(ii) Unit :- A unit of measure ment is a definete magnitude of a quality , defined and adopted by convention or by law that is used as standard for measure ment of the same kind of quantity

(iii) Force :-A force is a pull or push upon an object resulting from the objects interaction with another object . whenever there is an interaction between two objects there is a force upon each of the object .

iv) Newton's 1st law of motion :-motion - some times reffered to as the law of inertia .

v) efficiency :-The ratio of effective workto the energy expended in producing it, as of a machine ; out put divided by input .The efficiency of any machine is always less than one due to forces.Such as friction that use up energy unproductively .

vi)velocity ratio:- The ratio of a distance through which any part of a machine moves to that which

vii) Adaptation :- Adaptation is the physical or behavioural characteristics of an organism to survive better in the surrounding envirnment . living things are adapted to the habitat they live in .

viii) natural disasters:-A natural disasters ia s major adverse event resulting from natural process of the earth examples are floods , hurricanes earthx quakes ,tsunami,stroms , geological process.

ix) decomposition reaction :-A decomposition reaction can be defined as a chemical reaction

X) combination reaction :-A combination reaction is a reaction in which two reactants

Explanation:

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