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kykrilka [37]
2 years ago
6

Write 20 physical Quantities withS.I unit and formula​

Physics
2 answers:
Svetach [21]2 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]2 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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In a crash test, a truck with mass 2100 kg traveling at 22 m/s smashes head-on into a concrete wall without rebounding. The fron
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Answer:

a)   v_average = 11 m / s, b)  t = 0.0627 s

, c)    F = 7.37 10⁵ N

, d)   F / W = 35.8

Explanation:

a) truck speed can be found with kinematics

         v² = v₀² - 2 a x

The fine speed zeroes them

           a = v₀² / 2x

           a = 22²/2 0.69

           a = 350.72 m / s²

The average speed is

           v_average = (v + v₀) / 2

           v_average = (22 + 0) / 2

           v_average = 11 m / s

b) The average time

          v = v₀ - a t

          t = v₀ / a

          t = 22 / 350.72

          t = 0.0627 s

c) The force can be found with Newton's second law

             F = m a

             F = 2100 350.72

             F = 7.37 10⁵ N

.d) the ratio of this force to weight

             F / W = 7.37 10⁵ / (2100 9.8)

             F / W = 35.8

.e) Several approaches will be made:

- the resistance of air and tires is neglected

- It is despised that the force is not constant in time

- Depreciation of materials deformation during the crash

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3 years ago
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