If an object weighs 40n, calculate the mass (gravity = 9.8m/s^2)

4.08 kg

Explanation:

We can apply the Newton's second law of motion to find the mass of this object:

,

where is mass, and is acceleration, which is substituted by here. Now, plugging given numbers in the equation, we have

.

Solving for mass, we have

  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