Answer:
The ratio of the young's modulus of steel and copper is 
(c) is correct option.
Explanation:
Given that,
Length of steel wire = 4.7 m
Cross section
Length of copper wire = 3.5 m
Cross section
We need to calculate the ratio of young's modulus of steel and copper
Using formula of young's modulus for steel wire
....(I)
The young's modulus for copper wire
....(II)
From equation (I) and (II)
The ratio of the young's modulus of steel and copper
Hence, The ratio of the young's modulus of steel and copper is
Answer:
a), b), d), and e) are correct.
Explanation:
c) is incorrect because an object that has a definite shape cannot be in a gaseous state as gaseous objects take the shape of their container.
a) is correct because objects that are liquid have definite volumes but no definite shapes as they take the shape of their containers,
b) is correct as this is the definition of an object which is in a solid state.
d) is correct as this is the definition of an object which is in a gaseous state.
e) is correct as rigidness, the quality of having a definite shape is only exhibited by objects that are in solid state.
The major principal of leaver is
load × load distance = effort × effort distance
where,
effort dis= distance between effort and fulcrum
load distance = distance between load and fulcrum......
Answer:
They will run parallel to each other as the none of a straight pole cannot be bent in such a way where one side can turn without the other turning.
