Answer:I don't know!!!!I don't know!!!!I don't know!!!!I don't know!!!!I don't know!!!!
Explanation:
Answer:
The final temperature is 64.28°C.
Explanation:
Imagine now that one tried to repeat the same measurement, but between the time that the 400 cm³ of warm water was measured at 88°C and the time it was mixed with the 130 cm³ of cooler water at 15°C, the warmer water had lost 3060 cal to the environment. Calculate the final equilibrium temperature assuming no heat loss after mixing occurs.
Let the temperature of hot water before mixing is t
We need to calculate the temperature
Using formula of energy
Put the value into the formula
We need to calculate the final temperature
Using formula of temperature
Put the value into the formula
Hence, The final temperature is 64.28°C.
Answer:
B) Acceleration increases.
Explanation:
2021 edge
Answer:
<em>Correct choice: D. Object A is the fastest</em>
Explanation:
In a distance vs time graph, the distance is plotted vertically, and the time is plotted horizontally.
The diagram shows three graphs of objects A, B, and C.
The graph of A shows the object traveled 12 meters in 3 seconds, for a speed of 12/3= 4 m/s.
The graph of B shows the object traveled 8 meters in 4 seconds for a speed of 8/4=2 m/s.
Finally, the object C travels 4 meters in 4 seconds, for a speed of 4/4= 1 m/s
Thus, the fastest object is A.