Answer:
1. Some molecular substances are electrolytes
Explanation:
Electrolytes are electrically conducting solutions when dissolved in water and are found in cells .
In this case , all molecular substances can’t be electrolytes
Not all electrolytes are ionic. They could be ionic or covalent.
A strong electrolyte is known for its complete ionization in water and not for anything partial.
Acceleration due to gravity at the surface of Mars is given by the formula
here
M = mass of Mars
R = radius of Mars
Now if we take a point which is at height 3 times the radius of Mars from its surface
So the acceleration due to gravity is given as
now using this
so here the gravity is 16 times lesser than gravity at surface
Answer:
Explanat Enthalpy of Vaporizationion:
Answer:
B
Explanation:
Technological advancements in astronomy have led to the development of thousands of products such as
new materials, medical devices, and communications satellites.
For example, the production of instruments like telescopes, microscopes, and other measuring devices now enables us to identify things that we couldn't examine with the naked eye.
Similarly, the development of communication satellites has led to the emergence and improvements in the mobile network industry.
Answer:
An object on the moon would weigh the LEAST among these. So correct answer is B.
Explanation:
- Weight of an object on any place is given by:
W = Mass * Acceleration due to gravity(g)
- It means when masses of different objects those are in different places are same, the weight of those objects depends upon the 'g' of that particular place.
- As we know, acceleration due to gravity on surface of moon (g') is 6 times weaker than the acceleration on surface of earth (g), which is due to the large M/R^2 of the earth than the moon.
i.e. g' = g/6 so W' = W/6
- And in the space between the two, the object is weightless.