Aplayground merry-go-round with a radius of 1.80 m has a mass of 120 kg and is rotating with an angular speed of 0.400 rev/s. what is its angular speed after a 37.5-kg child gets onto it by grabbing its outer edge? the child is initially at rest.

0.304 rev/s

Explanation:

Given

radius

mass of Merry go round  

mass of child

Initial moment of Inertia of system

assuming all the mass is at periphery

Final Moment of Inertia

Conserving angular momentum

  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

answer

procedural programming, object-oriented programming

explanation

procedural programming is a type of computer programming language that specifies a series of well structured steps and procedures   within its development period of time. it contains a systematic order of statements, functions and commands to complete a computational task or program. it is centered on creating procedures. while object oriented programming is a programming language that is centered on creating objects rather that actions and data rather than logic.. it has four principles which are inheritance, polymorphism, abstraction and encapsulation