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Kazeer [188]
3 years ago
9

When a man travel from hilly to terai what will happen to weight and why?

Physics
1 answer:
juin [17]3 years ago
6 0

Answer:

When a man travels from Hilly region to Terai region, his weight gradually increases because the value of g is more at the Terai region than that in hilly region. 3. An object weights 20 N in air and 16 N in liquid, then answer the following questions.

Explanation:

because the value of g is more at the Terai region than that in hilly region. 3. An object weights 20 N in air and 16 N in liquid, then answer the following questions.

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Goryan [66]

Answer:c=0.213 J/g/K  

Explanation:

Given

sample mass(m_s)=120 gm

initial temperature of mineral(T_{im})=92.6

mass of water(m_w)=82.9

Water initial temperature(T_{iw})=20

Heat capacity of calorimeter =15.3 J/k

Final Temperature is 24.8

let c be the specific heat of mineral

Heat released by mineral sample=heat absorbed by calorimeter and water

120\times c\times (92.6-24.8)=82.9\times 4.184\times (24.8-20)+15.3\times (24.8-20)

c\times 67.8=14.486

c=0.213 J/g/K

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3 years ago
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The potential-energy function u(x) is zero in the interval 0≤x≤l and has the constant value u0 everywhere outside this interval.
VMariaS [17]
Look first for the relation between deBroglie wavelength (λ) and kinetic energy (K): 
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= h/(m√(2K/m)) 
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So λ is proportional to 1/√K. 
in the potential well the potential energy is zero, so completely the electron's energy is in the shape of kinetic energy: 
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Outer the potential well the potential energy is U₀, so 
K = 5U₀ 
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Therefore, the ratio of the de Broglie wavelength of the electron in the region x>L (outside the well) to the wavelength for 0<x<L (inside the well) is: 
1/√(5U₀) : 1/√(6U₀) 
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4 years ago
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Oksanka [162]
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3 years ago
Two mirrors are set up at an angle of 90.0°. If light is incident on the first mirror at an angle of 34.6° from the normal, at w
oksano4ka [1.4K]

Answer:

angle of incidence for the second mirror is 55.4 degree  

Explanation:

Given data;

Angle between two mirror is 90 degree

Incident angle on first mirror is 34.6 degree

For first mirror

Angle of incidence  is equal to  angle of reflection

34.6 degree = angle of reflection

r_1 = 42.5 degree

Now , for the triangle ABC         [from figure]

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The angle of incidence for

angle of incidence for the second mirror is 55.4 degree  

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