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Evgen [1.6K]
1 year ago
9

2x6573858493.8404? please

Physics
1 answer:
Studentka2010 [4]1 year ago
4 0

Answer:

13,147,716,987.681

if you multiply 2 by 6573858493.8404, you get 13,147,716,987.681

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An atom's mass number equals the number of
Alex73 [517]

Answer:

b

Explanation:

Mass number consist of number of proton and neutron in an atom

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3 years ago
A piston-cylinder chamber contains 0.1 m3 of 10 kg R-134a in a saturated liquid-vapor mixture state at 10 °C. It is heated at co
vaieri [72.5K]

Answer:

(A) 10132.5Pa

(B)531kJ of energy

Explanation:

This is an isothermal process. Assuming ideal gas behaviour then the relation P1V1 = P2V2 holds.

Given

m = 10kg = 10000g, V1 = 0.1m³, V2 = 1.0m³

P1 = 101325Pa. M = 102.03g/mol

P2 = P1 × V1 /V2 = 101325 × 0.1 / 1 = 10132.5Pa

(B) Energy is transfered by the r134a in the form of thw work done in in expansion

W = nRTIn(V2/V1)

n = m / M = 10000/102.03 = 98.01mols

W = 98.01 × 8.314 × 283 ×ln(1.0/0.1)

= 531kJ.

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3 years ago
S Two astronauts (Fig. P 11.55 ), each having a mass M , are connected by a rope of length d having negligible mass. They are is
jek_recluse [69]

The new rotational energy of the system(RE) = mv^{2}

How this is calculated?

  • Distance of each astronaut from centre of mass(m)=d/2

  • Moment of inertia of system

          I=m(\frac{d}{2} )^{2}+ m(\frac{d}{2} )^{2}\\   I =\frac{md^{2} }{2}

  • Speed of astronauts=v

  • So, angular speed,ω =  \frac{v}{d/2}

                                         =\frac{2v}{d}

  • Rotational energy of system= \frac{1}{2}  I \omega^{2}

                where, ω= angular speed

               RE=\frac{1}{2} *\frac{md^{2} }{2}*(\frac{2v}{d})^{2} \\RE     =mv^{2}

What is rotational energy?

  • Rotational energy or angular kinetic energy is kinetic energy due to the rotation of an object and is part of its total kinetic energy.
  • Looking at rotational energy separately around an object's axis of rotation, the following dependence on the object's moment of inertia is observed

To know more about rotational energy , refer:

brainly.com/question/13623190

#SPJ4

7 0
2 years ago
A waves is set up in a stretched string by plunking it. The velocity of the waves depends on the tensions. Derived the dimension
Georgia [21]

Answer:

justin

Explanation:

justin

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The sky is blue because: Select one: a. the index of refraction for air is slightly larger for blue than for red b. atomic hydro
lapo4ka [179]

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a. the index of refraction for air is slightly larger for blue than for red

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