Three friends were kicking soccer balls at a neighborhood field. Three soccer balls were rolling across the field. The black soc
cer ball has less mass than the blue and orange balls, which have equal mass. All three soccer balls were kicked by one of the friends, but not all from the same direction. Use the information in the diagram to answer.
Which soccer ball(s) experienced the strongest force? How do you know?
A. All three soccer balls experienced the same force because they changed speed by the same amount.
B the orange soccer ball it has more mass and the fastest ending speed
c. the blue soccer ball it takes a stronger force to slow down a more massive object than to speed it up.
D the blue and orange soccer balls they have more mass than the black soccer ball changed speed by the same amount
Which soccer ball(s) experienced the strongest force? How do you know?
A. All three soccer balls experienced the same force because they changed speed by the same amount.
B the orange soccer ball it has more mass and the fastest ending speed
c. the blue soccer ball it takes a stronger force to slow down a more massive object than to speed it up.
D the blue and orange soccer balls they have more mass than the black soccer ball changed speed by the same amount
2 answers:
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Answer:
a. 123.9°C
b.
c.
Explanation:
Hello, I'm attaching a picture with the numerical development of this exercise.
a. Since the steam is overheated vapour, the specific volume is gotten from the corresponding table. Then, as it became a saturated vapour, we look for the interval in which the same volume of state 1 is, then we interpolate and get the temperature.
b. Now, at 80°C, since it is about a rigid tank (constant volume for every thermodynamic process), the specific volume of the mixture is 0.79645 m^3/kg as well, so the specific volume for the liquid and the vapour are taken into account to get the quality of 0.234.
c. Now,since this is an isocoric process, the heat transfer per kg of steam is computed as the difference in the internal energy, considering the initial condition (showed in a. part) and the final one computed here.
** The thermodynamic data were obtained from Cengel's thermodynamics book 7th edition.
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