Football player position mass (kg) velocity (m/s) half back 60 8 tight end 90 6 full back 110 5 lineman 120 3 based on the data shown in the table, what is most likely being tested? a) does the speed of a player affect his mass? b) how are mass and speed related in football? c) which positions have the fastest speed and biggest mass? eliminate d) how does the speed of a player change as his mass is increased?

D) How does the speed of a player change as his mass is increased

Explanation:

Since the data in the table shows us a clear increase in mass first, and a decrease in velocity corresponding to that increase in mass, the study most likely is trying to research the effects of an increase in the mass of the player and how it would affect its velocity. AS you can see in the table, the most heavy players are also the slowest and the quickest players are also the thinest, so there is a direct inverse correlationship.

when the volume of gas is   changed from   717.73 ml   to 852 ml   the temperature will   change   from 315   c to 452   c

    calculation

this is calculated using the charles law formula

that is,   v1/t1 = v2/t2

          v1=?

        t1 = 315 c   into   kelvin = 315 +273 = 588 k

        v2 = 852   ml

        t2 = 425c + 273 =698 k

make v1   the subject of the formula ( by   multiplying both side by t1)

  v1=( v2 xt1) / t2

v1= (852 ml   x 588 k)/ 698 k= 717.73 ml