Meghan and rachel each apply the same amount of force to two different bowling balls. meghan's ball, (ball a), weighs 3 pounds, and rachel's ball, (ball b) weighs 1 pound. megan's ball is three times as heavy as rachel's. how will the speed of the balls compare?

The speed of Rachel's all will be more than the speed of the Meghan's ball.

Explanation: Force is defined as the rate of change of momentum of an object over time.

Mathematically,

where, F =  force exerted by the object

= change in velocity of the object

m = Mass of the object

t = Time taken

We are given that:

Force exerted by both Rachel and Meghan are same.

Let the mass of Rachel's ball be x.

Mass of Rachel's ball = x

Mass of Meghan's ball = 3x

Relation between mass and speed (velocity) is written by:

The object having higher mass will have the lower velocity or speed.

Hence, the speed of Rachel's ball is more than the Meghan's ball because the mass of Rachel's ball is lower than the Meghan's ball.

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.