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kykrilka [37]
3 years ago
6

Write 20 physical Quantities withS.I unit and formula​

Physics
2 answers:
Svetach [21]3 years ago
7 0

Answer:

HERE IS YOUR ANSWER

Physical quantity => Unit

1)Length=>metre

2)Time=>second

3)Temperature=>Kelvin

4)mass=>kilogram

5)electric current=>ampere

6)luminous intensity=>candela

7)amount of substance=>mole

8)velocity=>m/s

9)acceleration=>m/s²

10)momentum=>kgm/s

11)density=>kg/m³

12)volume=>m³

13)force=>Newton(N)

14)Energy=>Joule(J)

15)Power=>Watt(W)

16)Pressure=>Pascal(Pa) or N/m²

17)Resistance=>ohm

18)Electrical potential=>volt(V)

19)plane angle=>radian

20)solid angle=>steradian

Explanation:

Ainat [17]3 years ago
6 0

<u>Physical</u><u> </u><u>quantity</u><u>:</u><u>-units</u>

  • Force, Weight:-Newton

  • Frequency:-Hertz.

  • Electric charge:-Coulomb

  • Electric potential (Voltage):-Volt.

  • Inductance:-Henry

  • .Capacitance:-Farad

  • Resistance, Impedance, Reactance:-Ohm

  • Electricalconductance:-Siemens.

  • Magneticflux:-Weber

  • Magnetic flux density:-Tesla.

  • Energy, Work, Hea:- Joule

  • Power, Radiant flux:-Watt

  • Angle:- Radian

  • Radioactivity :-Becquerel

  • Luminous flux:-leman
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En una fundición hay un horno eléctrico con capacidad para fundir totalmente 540 kg de cobre. Si la temperatura inicial del cobr
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Answer:

Q = 2.95*10^5 kJ

Explanation:

In order to calculate the energy required to melt the cooper, you first calculate the energy required to reach the boiling temperature. You use the following formula:

Q_1=mc(T_b-T_1)     (1)

m: mass of cooper = 540 kg

c: specific heat of cooper = 390 J/kg°C

Tb: boiling temperature of cooper = 1080°C

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You replace the values of the parameters in the equation (1):

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Next, you calculate the energy required to melt the cooper by using the following formula:

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Finally, the total amount of energy required to melt the cooper from a temperature of 20°C is the sum of Q1 and Q2:

Q=Q_1+Q_2=2.23*10^8J+7.24*10^7J=2.95*10^8J=2.95*10^5kJ

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