EASY BRAINLIEST PLEASE HELP!! -if you answer correctly ill give you brainliest which will give you 100pts-

(if you put links or don't answer accordingly im reporting your account)

180000 m/s

Explanation:

Velocity = Wavelength x Frequency

If Wavelength = 1.2 and Frequency = 150000

Then velocity = 1.2 * 150,000 Which equals 180000

massxgravity x heght=weightxheight= pe

4900=490xh

h=10

  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