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vfiekz [6]
3 years ago
13

Explain what is meant by “field” and compare the properties of gravitational, electric, and magnetic forces in terms of particle

s affected, factors affecting the magnitude, and their relative strengths.
Physics
2 answers:
Cloud [144]3 years ago
8 0

Answer:

a field is the description of a spatial region, the force exerted on objects by a field is a field force.

Explanation:

Tema [17]3 years ago
6 0
A field is the description of a spatial region, the force exerted on objects by a field is a field force. 
gravitational force field: surrounds every material object, although only objects planet-sized or larger exert significant gravity.
electric force field: surrounds and affect electrical charges
magnetic force field: surround magnets and materials with electricity flowing through them. magnetic fields affect susceptible materials such as iron or other magnets.
hope i helped a little

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A refrigerator having a power rating of 350W operates for 12 hours a day. calculate the cost of electrical energy to operate it
rodikova [14]

Answer:

See the answers below.

Explanation:

The cost of energy can be calculated by multiplying each given value, a dimensional analysis must be taken into account in order to calculate the total value of the cost in Rs.

Cost=0.350[kW]*12[\frac{hr}{1day}]*30[days]*4.5[\frac{Rs}{kW*hr} ]=567[Rs]

The fuse can be calculated by knowing the amperage.

P=V*I

where:

P = power = 350 [W]

V = voltage = 240 [V]

I = amperage [amp]

Now clearing I from the equation above:

I=P/V\\I=350/240\\I=1.458[amp]

The fuse should be larger than the current of the circuit, i.e. about 2 [amp]

3 0
3 years ago
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Bas_tet [7]
The answer is C. Watson and Crick developed the Double Helix model seen in the diagram.
6 0
3 years ago
No nuclear reactions occur in the interior of a white dwarf. its brilliance comes from stored heat. therefore, the fate of an is
Snowcat [4.5K]
For a white dwarf star<span> to become explosively active, </span>the gap<span> between the dwarf </span>and therefore the<span> companion </span>should<span> be </span>sufficiently little<span> that the white dwarf's </span>force field will<span> pull matter </span>aloof from<span> the surface of the companion. </span>because of<span> the rotation of the </span>positional representation system<span>, the matter flowing through the mass-transfer stream from the companion star forms a </span>flat <span>disk, </span>known as associate degree<span> accretion disk, </span>that<span> orbits </span>round the white dwarf star<span>.</span>
3 0
3 years ago
If the atomic radius of lead is 0.175 nm, calculate the volume of its unit cell in cubic meters.
Genrish500 [490]
Before any calculations, we need to determine first the crystal structure of the lead metal. From literature, the lead metal assumes an FCC structure. So, it would have 4 atoms per units cell where the three atoms is the sum of all the portion of an atoms in each face of the cell and the 1 atom is the sum of all the portion of the corner atoms. The volume of the unit cell is equal to the edge length raise to the power three or V = a^3. The edge length can be calculated from the radius of the atoms by the pythagorean theorem. We do as follows:

V = a^3
   a^2 + a^2 = (4r)^2
  2a^2 = (4r)^2
    a = 2r
V = (2r)^3
V = 16r^3
V = 16 (0.175x10^-9)^3
V = 1.21 x 10^-28 m^3
5 0
3 years ago
the turns ratio for a transformer with 225 turns of wire in its primary winding and 675 turns in the secondary is: n
Gala2k [10]

The ratio of the primary turns to the secondary turns is 1/3

The correct answer to the question is Option A. 1/3

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

  • Primary turn (Nₚ) = 225 turns
  • Secondary turn (Nᵣ) = 675 turns
  • Ratio of primary to secondary =?

Ratio = Nₚ/Nᵣ

Nₚ/Nᵣ = 225 / 675

Nₚ/Nᵣ = 1/3

Therefore, the ratio of the primary turns to the secondary turns is 1/3

Complete question:

See attached photo

Learn more about transformer: brainly.com/question/17921540

7 0
2 years ago
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