What is the weight of a 55kg of a object?

55kg * 9.81m/s2 = 539.4 N

Explanation:

It depends on the gravitational force pressing downward on them. The formula for this is W = mg, where W is weight (in Newtons), m is the mass of the object (in kilograms), and g is the force of gravity, which is ~9.81 m/s-2 on Earth.

  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

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west