They should be bigger as if it is hot the tracks will expand as it is made of metal and then there is more room for it to expand or contract
6 meters is left because you subtract 12 meters from 6
Yes. Why would you think that there are some special processes in everyday life that don't ?
Answer:
Kidneys filter our blood,
Explanation:
Hope this helped :)
Answer:
Explanation:
Calories to be burnt = 3500 - 2500 = 1000 Cals .
Efficiency of conversion to mechanical work is 25 % .
Work needed to burn this much of Cals = 1000 x 100 / 25 = 4000 Cals.
4000 Cals = 4.2 x 4000 = 16800 J .
Work done in one jump = kinetic energy while jumping
= 1/2 m v²
= .5 x 70 x 3.3²
= 381.15 J .
Number of jumps required = 16800 / 381.15
= 44 .
