Calculate the force of gravity on a 1-kilogram box located at a point 1.3 x 10 meters from the center of Earth if the force on

Calculate the force of gravity on a 1-kilogram box located at a point 1.3 x 10 meters from the center of Earth if the force on a 2.5-kilogram box at the same point is
6.1 newtons

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  1. Ah hah !  Thank you for that data at the end ... about the 2.5kg box. 
    I thought we were going to have to calculate it from Square-1.

    Without checking, I'll assume that a 2.5kg box at that location really
    does weigh 6.1 Newtons.

    Weight (gravitational force) is directly proportional to the mass of
    the object ... if you eat twice as much, you'll weigh twice as much.

    So the weight of the 1kg box is

                   (1 / 2.5) x (6.1 N)  =  2.44 Newtons .

  2. The force of gravity on the 1 kg box is 2 N.

    The formula for the force of gravity F on an object with mass m is

    F = (GmM)/d²

    Since G, M , and d are the same for both objects, (GM)/d² = a constant = k ). Then, we can write

    F = km

    F₂/F₁ = m₂/m₁

    F₂ = F₁ × m₂/m₁

    If the 2.5 kg box is object 1,

    F₂= 6.1 N × (1 kg/2.5 kg) = 2 N

    Note: The answer can have only one significant figure because that is all you gave for the mass of the 1 kg object.

  3. Following are given answers to each question, one by one:

    Answer 1:

    Option A: Object-Oriented

    In object oriented programming, data and functions are encapsulated together in an object. The functions or methods take data as arguments and operate on them.

    Answer 2:

    Option A: Objects

    An Object is a basic unit of Object Oriented Programming. It is basically an entity or component of a program that has information for interacting with other elements. It tells us that how specific actions will be performed. It contains both data and procedures.

    Answer 3:

    Option D: Fields

    The variables, arrays, or other data structures that are stored in the object are known as the object’s Fields.  Fields can be private or public depending on the fact that where they are declared.

    Answer 4:

    Option B: Methods

    The procedures that the object performs are known as Methods. It can be defined as a process that is associated or linked with a class. They are the actions or behavior of an object defined or a class.

    Answer 5:

    Option B: Class

    The programmer determines the fields and methods of an object and creates the Class code. While in Object oriented programming, a class can be named as a blueprint that provides initial values such as variables and attributes and member and unctions in order to create objects.

    Answer 6:

    Option B: definition

    The class definition starts with the word Class followed by the name of the class. So, "class" is actually a keyword used for creating a class.

    Answer 7:

    Option D: members

    The term used or the fields and methods that belong to a class is members.

    Answer 8:

    Option A: access specifier

    The word Private that appears before a field declaration, in a class definition, is known as a(n) access specifier. It tell the scope of the field. This mean that where can it be used and where can not be used.

    Answer 9:

    Option B: is the correct answer.

    The mutator methods are sometimes called accessors.

    Answer 10:

    Option D: Polymorphism

    Polymorphism is a process that allows you to create methods with the same name in different classes and gives you the ability to call the correct method depending on the type of object that is used to call it.

    Answer 11:

    Option B: UML

    UML is a standard way of drawing diagrams that describe object-oriented systems. UML stands or Unified Modeling Language. It presents a visual representation of objects, fields, states by integrated diagrams.

    Answer 12:

    Option A: getter

    Getters is another name for accessor methods. Accessor methods are defined above.

    Answer 13:

    Option D: Constructor

    Constructor method is called automatically when an object is created.

    Answer 14:

    Option C: Inheritance

    Inheritance allows a new class to extend an existing class. It is a process in which a class or object is implemented on another class or object.

    Answer 15:

    Option D: All of above.

    A procedure can:

    Read a file.Gathers input. Displays output.Answer 16:

    Option D: All of above.

    A UML diagram of a class contains:

    Class name. Class fields.Class methods.Answer 17:

    Option A: +

    In a UML diagram a plus "+" character is placed in front of a field of method name to indicate it is public.

    Answer 18:TrueAnswer 19:True

    When a constructor is not declared, it will be created by default by the compiler.

    Answer 20:


    It is the definition of over riding.

    Answer 21:


    Private methods have less scope than public ones so they cant be accessed by external entities.

    Answer 22:


    Answer 23:


    Manipulation of private methods cannot be done directly.

    Answer 24:


    Answer 25:


    Sub class is always inherited by the main class. This phenomenon can't be reversed

    Answer 26:


    Security is provided by hiding data.

    Answer 27:


    Basically two programming methods are used today, that  are:

    procedural object oriented.Answer 28:


    Due to isolation of programs data and the code that is performed on the data, the procedural program gets larger and complex.

    I hope it will help you!

  4. because she "made up time"

    Step-by-step explanation:

    When she increased her pace, she basically made up for lost time standing at the location. assuming that she made it in the same amount of time if she didn't stop, you can assume that she did not waste anymore time because she picked up the pace.

  5. No

    Step-by-step explanation: The order of coordinates for a given point is very important. For example, (2, 5) and (5, 2) represent two very different points on a coordinate system, as shown in the picture below.

    A given point, such as (2, 5), is often reffered to as

    an ordered pair because the order of coordinates is very important.

    [tex]Are (2, 5) and (5, 2) the same location? Why or why not?[/tex]

  6. Since you already gave us the weight of the 2.5-kg box,
    we don't even need to know what the distance is, just
    as long as it doesn't change.

    Look at the formula for the gravitational force:

                               F = G  m₁ m₂ / R² .

    If 'G', 'm₁' (mass of the Earth), and 'R' (distance from the Earth's center)
    don't change, then the Force is proportional to  m₂ ... mass of the box,
    and you can write a simple proportion:

                           (6.1 N) / (2.5 kg)  =  (F) / (1 kg)

    Cross-multiply:  (6.1 N) (1 kg)  =  (F) (2.5 kg)

    Divide each side by (2.5 kg):  F = (6.1N) x (1 kg) / (2.5 kg)  =  2.44 N .

  7. They are not in the same location

    Step-by-step explanation:

    Well because we have x axis and y axis, x always has to go first. In (2, 5) 2 is first and has to start from the x axis and 5 is the y axis. And the (5,2) is the opposite and the places would be in totally different places on the coordinate plane.

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