An experiment is performed in which different masses and shapes are dropped from different heights and the times it takes for each to reach the ground are recorded. which of the following is the dependent variable? i. e. which variable is the result of another variable?

a. time
b. mass
c. shape
d. height

C

Explanation:

The answer is shape.

Basically, quantities can either be fundamental or derived. While fundamental are the basic quantities, derived are obtained from combining fundamentals.

To get a shape, we would need the combination of lengths. This makes the shape a derived quantity

it had to transfer to a care and maintenance mode

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.