The resistance between A and B is 10 ohms.
Answer:
724.3J/Kg.K
Explanation:
CHECK THE COMPLETE QUESTION BELOW
Compute the specific heat capacity at constant volume of nitrogen (N2) gas.and compare with specific heat of liquid water. The molar mass of N2 is 28.0 g/mol.
The specific heat capacity can be computed by using expression below
c= CV/M
Where c= specific heat capacity
M= molar mass
CV= molar hear capacity
Nitrogen is a diatomic element, the Cv can be related to gas constant with 5/2R
Where R= 8.314J/mol.k
Molar mass= 28 ×10^-3Kg/mol
If we substitute to the expression, we have
c= (5R/2)/(M)
=5R/2 × 1/M
=(5×8.314) /(2×28 ×10^-3)
=724.3J/Kg.K
Hence, the specific heat capacity at constant volume of nitrogen (N2) gas is
724.3J/Kg.K
The specific heat of liquid water is about 4182 J/(K kg) which is among substance with high specific heat, therefore specific heat of Nitrogen gas is 724.3J/Kg.K which is low compare to that of liquid water.
Answer:
B. for an object that floats
Explanation:
For an object to float the weight of the object must be balanced by the buoyancy force.
However an object will sink if the magnitude of the buoyant force is equal to the weight of the amount of fluid that has the same volume as the object.
Answer:
Explanation:
(The following exercise is written in Spanish and for that reason explanation will be held in Spanish)
Supóngase que el planeta tiene una órbita circular, el período de rotación del planeta es:
Asimismo, la rapidez angular se describe como función de la aceleración centrípeta:
Ahora se reemplaza en la ecuación de período:
La aceleración experimentada por el planeta es:
Se reemplaza en la ecuación de período:
La distancia del planeta con respecto al sol es finalmente despejada:
![R = \sqrt[3]{G\cdot M_{sun}\cdot \left(\frac{T}{2\pi} \right)^{2}}](https://tex.z-dn.net/?f=R%20%3D%20%5Csqrt%5B3%5D%7BG%5Ccdot%20M_%7Bsun%7D%5Ccdot%20%5Cleft%28%5Cfrac%7BT%7D%7B2%5Cpi%7D%20%5Cright%29%5E%7B2%7D%7D)
Finalmente, se sustituyen las variables y se determina la distancia:
![R = \sqrt[3]{\left(6.674\times 10^{-11}\,\frac{N\cdot m^{2}}{kg^{2}} \right)\cdot (1.989\times 10^{30}\,kg)\cdot \left[\frac{(65\,a)\cdot \left(365\,\frac{d}{a} \right)\cdot \left(86400\,\frac{s}{d} \right)}{2\pi} \right]^{2}}](https://tex.z-dn.net/?f=R%20%3D%20%5Csqrt%5B3%5D%7B%5Cleft%286.674%5Ctimes%2010%5E%7B-11%7D%5C%2C%5Cfrac%7BN%5Ccdot%20m%5E%7B2%7D%7D%7Bkg%5E%7B2%7D%7D%20%5Cright%29%5Ccdot%20%281.989%5Ctimes%2010%5E%7B30%7D%5C%2Ckg%29%5Ccdot%20%5Cleft%5B%5Cfrac%7B%2865%5C%2Ca%29%5Ccdot%20%5Cleft%28365%5C%2C%5Cfrac%7Bd%7D%7Ba%7D%20%5Cright%29%5Ccdot%20%5Cleft%2886400%5C%2C%5Cfrac%7Bs%7D%7Bd%7D%20%5Cright%29%7D%7B2%5Cpi%7D%20%5Cright%5D%5E%7B2%7D%7D)
<span>vibrations that travel through the air or another medium and can be heard when they reach a person's or animal's ear.</span>
