Which one of the following choices is an effective way to pervent low-back pain
a. eliminate warm-up before exercise
b. lift objects by putting weight on your upper back
c. maintain correct posture
do. limit the amount of exercise you do per week

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is

answeralert drivers who drift off the road;