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Pachacha [2.7K]
3 years ago
10

Which of the following statements is NOT a correct assumption of the classicalmodel of an ideal gas?A. The molecules are in rand

om motion.B. The volume of the molecules is negligible compared with the volume occupied bythe gas.C. The molecules obey Newton's laws of motion.D. The collisions between molecules are inelastic.E. The only appreciable forces on the molecules are those that occur duringcollisions.
Physics
2 answers:
Elena-2011 [213]3 years ago
6 0

The answer is D, because the collision's between molecules are elastic, not inelastic.

CaHeK987 [17]3 years ago
6 0

D! because the collision's between molecules are elastic, not inelastic.

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Three different people weight a standard mass of 2.00 g on the same balance. Each person obtains a reading of 2.32 g for the mas
Lubov Fominskaja [6]

Answer: precise

Explanation:

Three different people weight a standard mass of 2.00 g on the same balance. Each person obtains a reading of 2.32 g for the mass of the standard. These results imply that the balance that was used is precise.

Precision can be defined as the closeness of measured values to each other, for a measuring equipment it is the closeness of the values of readings obtained at different times to each other. It does not necessarily means the measurements are accurate(closeness to the actual value). Therefore, in the case above where three different people measured the same mass on the same balance, and each of them obtained the same value which is different from the standard value. We can say the balance used is precise because the three readings are the same.

5 0
3 years ago
Considering , will F ever equal zero?
Kamila [148]
No it will not because F will equal 3 not 0

4 0
3 years ago
Read 2 more answers
Why is it possible to remove a paper without moving the object on it.(apply newton's law)
klasskru [66]

This is possible due to inertia of motion. which is nothing but newton's first law.

according to this law , an object tries to retain its state of motion or rest unless acted upon by an external force.  

consider an object placed on a paper, initially both the object and paper are at rest. to pull the paper , we apply force on the paper and paper gains velocity. but the object keeps its motion of rest and hence the paper can be removed without moving the object.


7 0
3 years ago
Kimonoski takes a 9-minute shower every day. The shower uses about 1.8 gal per minute of water. He also uses 23 gallons of hot w
ioda

Answer:

Q_{week} = 458884.6\, BTU

Explanation:

The weekly water consumption of Kimonoski is:

m_{bath,week} = (62.4\,\frac{lbm}{ft^{3}})\cdot (1.8\,\frac{gal}{min} )\cdot (\frac{0.134\,ft^{3}}{1\,gal} )\cdot (\frac{1\,min}{60\,s} )\cdot (9\,min)\cdot (\frac{60\,s}{1\,min} )\cdot (7\,\frac{days}{week} )\cdot (1\,week)

m_{bath.week} = 948.205\,lbm

m_{others, week} = (62.4\,\frac{lbm}{ft^{3}})\cdot (23\,gal)\cdot (\frac{0.134\,ft^{3}}{1\,gal} )\cdot (7\,\frac{days}{week} )\cdot (1\,week)

m_{others, week} = 1346.218\,lbm

m_{week} = m_{bath,week} + m_{others, week}

m_{week} = 2294.423\,lbm

The total energy required per week for hot water is:

Q_{week} = m_{week}\cdot c_{p,water}\cdot \Delta T

Q_{week} =(2294.423\,lbm)\cdot (1\,\frac{BTU}{lbm\cdot ^{\textdegree}F} )\cdot (50^{\textdegree}F)

Q_{week} = 458884.6\, BTU

3 0
3 years ago
A simple pendulum is known to have a period, T = 1.55 s. Student A uses their smartphone stopwatch app to measure the total time
arsen [322]

Given that,

Time period of simple pendulum is 1.55 s.

Time period of simple pendulum for A student =1.25 s

Time period of simple pendulum for B student =1.5 s

We know that

The accuracy is defined as how close a measurement is to a known value .

The result of student of A is 1.25 s. It is more precise because it has more significant figure than student B's result of 1.6 s.

But the measurement made by student B's is much closer the known value of 1.55 s.

Hence, The most probable source of error is the result of student A.

5 0
3 years ago
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