A rod on the surface of Jupiter's moon Callisto has a volume of 0.3 cubic meters [m3]. Determine the weight of the rod in units of pounds-force [lbf]. The specific gravity of the material is 4.7. Gravitational acceleration on Callisto is 1.25 meters per second squared [m/s2].

396.56 lbf

Explanation:

From the question given above, the following data were obtained:

Volume of rod = 0.3 m³

Specific gravity = 4.7

Gravitational acceleration (g) = 1.25 m/s²

Weight of rod =...?

Next, we shall determine the density of the rod. This can be obtained as follow:

Specific gravity = 4.7

Density of water = 1000 Kg/m³

Density of rod =...?

Specific gravity = Density of rod /Density of water

4.7 = Density of rod /1000

Cross multiply

Density of rod = 4.7 × 1000

Density of rod = 4700 Kg/m³

Next, we shall determine the mass of the rod. This can be obtained as follow:

Volume of rod = 0.3 m³

Density of rod = 4700 Kg/m³

Mass of rod =?

Density = mass /volume

4700 = Mass of rod / 0.3

Cross multiply

Mass of rod = 4700 × 0.3

Mass of rod = 1410 Kg

Next, we shall determine the weight of the rod. This can be obtained as follow:

Mass of rod = 1410 Kg

Gravitational acceleration (g) = 1.25 m/s²

Weight of rod =...?

Weight = mass × Gravitational acceleration

Weight of rod = 1410 × 1.25

Weight of rod = 1762.5 N

Finally, we shall convert 1762.5 N to pounds-force [lbf]. This can be obtained as follow:

1 N = 0.225 lbf

Therefore,

1762.5 N = 1762.5 N × 0.225 Lbf / 1 N

1762.5 N = 396.56 lbf

Therefore, the weight of the rod is 396.56 lbf

speed of light in vacuum is 300,000 km/s

speed of light in other mediums is given by the expression v = c/n, where c is the speed of light in vacuum and n is the refractive index of medium.

for the first medium v = 200,000 km/s

  so, refractive index of medium = 300000/200000 = 1.5

    1.5 refractive index is usually for glass. so first medium is glass.

for the second medium v = 250,00 km/s

so, refractive index of medium = 300000/250000 = 1.2

    1.2 refractive index is usually for water. so second medium is water.

for the third medium v = 0 km/s

so, refractive index of medium = 300000/0 = ∞

    ∞ refractive index is usually for opaque mediums. so third medium is opaque medium.

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