A planet orbits the Earth at a distance of 2.87×109 m.

a. What is the orbital period of the planet?

b. What is the orbital speed of the planet?

if the thermos has a vacuum innner, then heat through conv currents and conduction are reduced = vacuum flask

graph slopes whilst gas cools, then it is flat whilst conensation to liquid happens, the coolong liquid then graphs as a slope when it solidifies graph is flat

latent heat

  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

higher potential

explanation:

because it is in a high speed so it must move into a of high potential