An object is moving along a straight line at a constant speed of 20 m/s. How far did the object travel during the first 4 seconds?

what best describes physical development during adolescence is the development of secondary sex characteristics happens at a rate unique to each individual.

object 2 because all the other ones are wrong

  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