Answer:
The answer is 157.4
Explanation:
If you just do 20 x 7.87 = 157.4
1) 29.8 C
At the beginning, the metal is at higher temperature (70.4 C) while the water is at lower temperature (23.6 C). When they are put in contact, the metal transfers heat to the water, until they reach thermal equilibrium: at thermal equilibrium the two objects (the metal and the water have same temperature). Therefore, since the temperature of the water at thermal equilibrium is 29.8 C, the final temperature of the metal must be the same (29.8 C).
2) 6.2 C
The temperature change of the water is given by the difference between its final temperature and its initial temperature:
where
Substituting into the formula,
And the positive sign means that the temperature of the water has increased.
3) -40.6 C
The temperature change of the metal is given by the difference between its final temperature and its initial temperature:
where
Substituting into the formula,
And the negative sign means the temperature of the metal has decreased.
Your answer is B :) because well the conditions are harsh.
<span>Other than the fact that our cells would never be able to fulfill different functions without cell differentiation, each and every cell would do the same thing. Our bodies could never be able to take shape. Hope the answer helps. </span>
Answer:
30 m/s
Explanation:
Velocity is since we know that the initial velocity is 0, and the acceleration is then we also know that time is 3 seconds it follows that: