State and explain two application of effect of impurities on melting

Explanation:

First, they tend to lower the overall melting point of the compound versus the value for pure material.

Second, they tend to increase the range of the melting point values.

organisms are more likely to be more preserved in mud than sand because mud is moist and wet, while sand is very dry.

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

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(jacemorris04)