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POTU just finished solving your NCERT Textbook Questions. Check them out here
Explain
why are artificial magnets preferred over natural magnets?
WHAT ARE NON CONTACT FORCES?
Why are the handles of a pair of scissors smaller than its blades while the handles of a pair of shears longer than the blades? Both are 1st class lever.
Why do the army tanks move over the wide steel chain rather than on the wheels?
A physical text book has a mass of 2.2 kg.
a) what is the wieght on earth ?
b) What is the weight on Mars (g=3.7 m/s2)
c) If the text book wieghts 19.6 newtons on venus, what is the strenght of gravit...
what is a light year? One light year is how many K.M.?
what are the two conventional units of temeperature
a rubber ball dropped from a height, keeps on bouncing for some time, before coming to rest.
why does the ball bounced?
why does its decrease?
why does its come to rest?
2.a piece of wood easily catch...
give reasons for the library and the laboratory are helpful in providing scientific aids
Explain
why are artificial magnets preferred over natural magnets?
a.the force which pushes a sail-boat forward.
b.the force used while kicking a ball.
c.water begins to flow towards the ground as soon as we open a ta...
WHAT ARE NON CONTACT FORCES?
Why are the handles of a pair of scissors smaller than its blades while the handles of a pair of shears longer than the blades? Both are 1st class lever.
Explain
Why do the army tanks move over the wide steel chain rather than on the wheels?
A physical text book has a mass of 2.2 kg.
a) what is the wieght on earth ?
b) What is the weight on Mars (g=3.7 m/s2)
c) If the text book wieghts 19.6 newtons on venus, what is the strenght of gravit...
what is a light year? One light year is how many K.M.?
what are the two conventional units of temeperature
a rubber ball dropped from a height, keeps on bouncing for some time, before coming to rest.
why does the ball bounced?
why does its decrease?
why does its come to rest?
2.a piece of wood easily catch...
give reasons for the library and the laboratory are helpful in providing scientific aids
Explain