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Alex73 [517]
3 years ago
14

Which statement describes the law of conservation of energy?

Physics
2 answers:
dmitriy555 [2]3 years ago
6 0

Answer:

D

Explanation:

cuz it transforms from one to another can't be created not destroyed.PERIOD!

viva [34]3 years ago
6 0

Answer: D

Explanation:

ur welcome :)

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A balloon being blown up is an example of dilation or inflation.

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What is the rate of vibration measured in
jek_recluse [69]

Answer:

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Two containers (A and B) are in thermal contact with an environment at temperature T = 280 K. The two containers are connected b
zmey [24]

Answer:

The maximum amount of work is  W = 1563.289 \ J

Explanation:

From  the question we are told that

   The temperature of the environment is  T = 280\ K

    The volume of container A is  V_A = 2 m^3

    Initially the number of moles  is  n = 1.2 \ moles

     The volume of container B is V_B = 3.5 \ m^3

     

At equilibrium of the gas the maximum work that can be done on the turbine is mathematically represented as

             W =  P_A V_A  ln[ \frac{V_B}{V_A} ]

Now from the Ideal gas law

          P_A V_A =  nRT

So substituting for P_A V_A in the equation above

          W =  nRT ln [\frac{V_B}{V_A} ]

Where R is the gas constant with a values of  R =  8.314 \  J/mol

Substituting values we have that

            W = 1.2 * (8.314) * (280) * ln [\frac{3.5}{2} ]

          W = 1563.289 \ J

8 0
3 years ago
6.All wheelchairs may be secured so that the user is facing the curb side of the vehicle.
Nataly_w [17]

All wheelchairs may be secured so that the user is facing the curb side of the vehicle is true. The answer is letter A. It provides a unique 180 degree powered rotation which makes it possible to raise, lower and rotate fully. 

6 0
3 years ago
A black, totally absorbing piece of cardboard of area a = 2.1 cm2 intercepts light with an intensity of 8.8 w/m2 from a camera s
PolarNik [594]

Answer:

The value of radiation pressure is 2.933 \times 10^{-8} Pa

Explanation:

Given:

Intensity I = 8.8 \frac{W}{m^{2} }

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From the formula of radiation pressure in terms of intensity,

   P = \frac{I}{c}

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Put all values in above equation,

  P = \frac{8.8}{3 \times 10^{8} }

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Therefore, the value of radiation pressure is 2.933 \times 10^{-8} Pa

8 0
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