You can not determine the speed based on the information given
Answer:
radius of a circle is measured by an instrument, so it is the independent variable
Explanation:
The independent variable corresponds to the magnitude controlled by the experimenter and in general can be measured by an instrument.
The dependent variable is the variable used to perform the calculations, obtained from a mathematical transformation of the independent variable.
The radius of a circle is measured by an instrument, so it is the independent variable and the area is calculated by
A = π r²
Therefore the area corresponds to the dependent variable
Answer: (B) your mass is essentially unchanged but your weight is less than on Earth.
Explanation:
Well, firstly we have to explain the difference between the concepts of mass and weight:
<u>-Mass</u> 
is the amount of matter that exists in a body, which only depends on the quantity and type of particles within it. This means mass is an intrinsic property of each body and <u>remains the same regardless of where the body is located. </u>
<u>-Weight</u> 
is a measure of the gravitational force acting on an object and is directly proportional to the product of the mass of the body by the acceleration due gravity 
in that place and is mathematically expressed as:
So, according to this explanation and since the Earth and Mars have different values of acceleration due gravity (in fact, Mar's is less than Earth's), <u>your weight has changed, but not your mass.</u>
