The mass of a piece of cork is 20g. what fraction of the cork is immersed when it float in water? [Take density of cork to be 0.25g/cm³].​

we need to know the time interval during which the force acts. impulse of force = momentum change

  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

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.

the components of a vector are the parts of the vectors that are to each other.

b perpendicular