State newton's first law of motion with example.

"”"third law of motion""" every action has an equal and opposite reaction

For example,a book is lying on the table book is applying a force on the table and this called action of the book and in reaction the table also applied force on book which is called reaction of table , at last these two force will cancel each other because forces are equal and opposite and body remains in rest

(4) a=2,s=100m

(5) u=4

(7) 18

Explanation:

by using newtons 1,2,3 laws motion

let..

u=initial velocity

v=final velocity

a=acceleration

s=distance

according to Newton's third law of motion every action has a equal and opposite reaction

answer:

amoebiosis is disease caused by protozoa

Explanation:

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answer:

if any object is in the state of rest or state of motion it will be remain in state of rest or state of motion untill an external force is applied on them,

answer:

Newton s first law of motion -

An object continues to remain at rest or in a state of uniform motion along a straight line unless an external unbalanced force acts on it .

answer:

Newton's first law of motion states that an object at rest remains at rest and an object in motion remains in motion with the same velocity unless acted upon by what we call an unbalanced force. ... The force of gravity pulling down is balanced by the force of my kitchen table pushing up on my cup of coffee.

Explanation:

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answer:

Q.3. (i) Malaria

(ii) Kala-azar etc.

Q.4. The rate of change of velocity of any body known as acceleration. The SI unit of acceleration is m./sec²

Q.5. According to Newton's first law of motion a body at rest will remain at rest and a body in motion will continue in motion in a straight line with same speed and unless and external force is applied on it.

Q.6. The plasma membrane is called a selectively permeable membrane as it permits the movement of only certain molecules in and out of the cells. ... It allows hydrophobic molecules and small polar molecules diffuse through the lipid layer, but does not allow ions and large polar molecules cannot diffuse through the membrane.

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