Justin designed an experiment to find out how running up bleachers affects his heart rate. First he records his resting heart
rate and then runs up the bleachers 10 times. Each time he reaches the top, he records his heartrate then rests 20
minutes
Which is involved in Justin's experiment?
replication
repetition
both repetition and replication
neither repetition nor replication

the titanic would be the correct answer

answer: zinc is the substance which has a volume of 1.38 .

density is defined as the mass of an object per unit volume.

it can be calculated by dividing mass of a substance by its volume i.e.

si unit of density is kg per cubic meter and cgs unit of the same is gram per cubic centimeter.

now from the given data volume can be calculated by the formula .

hence, the volume of aluminium will be = which comes out to be 1.703 .

similarly, volume of zinc, chromium, and nickel will be 1.378 , 0.869 , and 0.356 respectively.