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stiks02 [169]
3 years ago
11

Fahd is trying to write a focused scientific question. He writes, “Does the material something is made of affect its density?” H

ow could Fahd’s question best be rewritten? How does changing an object’s material change its density? How are material and density related? Does changing the density of an object change its material? What affects density?
Physics
2 answers:
natta225 [31]3 years ago
6 0

 Explanation :

Fahd is trying to write a focused scientific question. He write the question as " Does the material something is made of affect its density? "

Density is the ratio of mass and the volume of an object. Density depends only on mass and volume of the substance.

This question could be rewritten as :

How does changing an object’s material change its density?

garik1379 [7]3 years ago
5 0

Answer:

Does the material's characterisitcs/composition affect its density,

Every material has unique mass to volume ratio. Therefore changing a material of an object changes its density or we can say mass to volume ratio

Density= mass of material/volume of material

Not always

mass to volume ratio, pressure and temperature

Explanation:

"Something is made of" refers to composition of a material. The composition of a material defines it characteristics so Fahd's statement can be re-written as: " Does the material's characterisitcs/composition affect its density".

Density is defined as ratio of mass of a material to its volume at a specific temperature and pressure.It is a physical property of a material. It is affected by temperature and pressure. Temperature affects the volume hence the density of the material.  Pressure also afects the volume of the material, hence its density. Each material has unique value of density at a particular temperature and pressue

If an object is changed by changing material at a particular temperature and pressue, that is changing the characteristics or composition of material, then the object's density also changes.

Density of material is changed by changing its mass to volume ratio or by changing its temperature or by changing its pressure, then density of material changes.

From above description it can be inferred that a material's composition or chemial characteristics may remain unchanged, if density changes by changing pressure or temperature of the material

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inessss [21]

Answer:

The term soil fabric refers to the geometrical arrangement of individual particles in a soil, including the geometrical distribution of pore spaces. Soil fabric may be used to describe the particle arrangement in both cohesive soils such as clays and granular soils such as silts, sands, and gravels.

5 0
3 years ago
Help! (Look in the pic)
hjlf

Answer:

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Explanation:

5 0
3 years ago
an auditorium measures 30.0 m ✕ 15.0 m ✕ 5.0 m. the density of air is 1.20 kg/m3. (a) what is the volume of the room in cubic fe
Fynjy0 [20]

dimension = 30.0 m ✕ 15.0 m ✕ 5.0 m.

density = 1.20 kg/m3

(a)volume = lenght * breadth * height

      = 30 * 15 * 5

      = 2250 metre cube = 2.25 cubic meter

(b)   mass of air = density * volume

        mass of air = 1.2 * 2250

mass of air = 2700kg

weight  = mass * 9.8

             = 2700 * 9.8

             = 26,460 N

  • The definition of Density is the amount of matter in a given space, or volume
  • Density = mass/volume
  • units for density kg/m^3
  • Density of water 1g/ml
  • Salt water is denser that is why  don't sink as easily.

To know more about density  visit : brainly.com/question/15164682

#SPJ4

5 0
1 year ago
Three 7 0hm resistors are connected in series across a 10 V battery. What is the equivalent resistance of the circuit?
Tomtit [17]

Given

Three 7 ohm resistor are in series.

The battery is V=10V

To find

The equivalent resistance

Explanation

When the resistance are in series then the resistance are added to find its equivalent.

Thus the equivalent resistance is:

R=7+7+7=21\Omega

Conclusion

The equivalent resistance is 21 ohm

4 0
1 year ago
A square loop of side 7 cm is placed with the nearest side 2 cm from a long wire carrying a current that varies with time at a c
ioda

Answer:

Explanation:

side of the square loop, a = 7 cm

distance of the nearest side from long wire, r = 2 cm = 0.02 m

di/dt = 9 A/s

Integrate on both the sides

\int _{0}^{i}di =9\int _{0}^{t}dt

i = 9t

(a) The magnetic field due to the current carrying wire at a distance r is given by

B = \frac{\mu_{0}i}{2\pi r}

B = \frac{\mu_{0}\times 9t}{2\pi r}

(b)

Magnetic flux,

\phi=\int B\times a dr

\phi=\int \frac{\mu_{0}\times 9t}{2\pi r}\times a dr

\phi=\frac{\mu_{0}\times 9t\times a}{2\pi}\times ln\left ( \frac{2 + 7}{2} \right )

\phi=\frac{\mu_{0}\times 9t\times 0.07}{2\pi}\times ln(4.5)

\phi = 1.89 \times 10^{-7}t

(c)

R = 3 ohm

e = -\frac{d\phi}{dt}

magnitude of voltage is

e = 1.89 x 10^-7 V

induced current, i = e / R = (1.89 x 10^-7) / 3

i = 6.3 x 10^-8 A

8 0
3 years ago
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