Answer:
In my perspective I think its D because Electrical energy is converted to light and heat
Answer:
See explanation
Explanation:
Recall that;
Speed = Distance/time
Distance = Speed * time
Speed = 200 km/h
Time = 4 hours
Distance = 200 km/h * 4 hours = 800 kilometres
Displacement has to do with distance covered in a specified direction, in this case, the direction is towards Zambales.
Hence, the displacement is 800 kilometres towards Zambales.
The heart has 2 chambers: The UPPER CHAMBERS are called the <u>atrium</u> and the LOWER CHAMBERS are called the <u>ventricles</u>
Therefore , answer is c
Answer:
![C_m=0.474\frac{J}{g\°C}](https://tex.z-dn.net/?f=C_m%3D0.474%5Cfrac%7BJ%7D%7Bg%5C%C2%B0C%7D)
Explanation:
Hello.
In this case, since this is a system in which the water is heated up and the metal is cooled down in a calorimeter which is not affected by the heat lose-gain process, we can infer that the heat lost by the metal is gained be water, it means that we can write:
![Q_m=-Q_w](https://tex.z-dn.net/?f=Q_m%3D-Q_w)
Thus, in terms of masses, specific heats and temperatures we can write:
![m_mC_m(T_{eq}-T_m)=-m_wC_w(T_{eq}-T_w)](https://tex.z-dn.net/?f=m_mC_m%28T_%7Beq%7D-T_m%29%3D-m_wC_w%28T_%7Beq%7D-T_w%29)
Whereas the equilibrium temperature is the given final temperature of 28.4 °C and we can compute the specific heat of the metal as shown below:
![C_m=\frac{-m_wC_w(T_{eq}-T_w)}{m_m(T_{eq}-T_m)}](https://tex.z-dn.net/?f=C_m%3D%5Cfrac%7B-m_wC_w%28T_%7Beq%7D-T_w%29%7D%7Bm_m%28T_%7Beq%7D-T_m%29%7D)
Plugging the values in and since the density of water is 1.00 g/mL so the mass is 80.0g, we obtain:
![C_m=\frac{-80.0g*4.184\frac{J}{g\°C} (28.4\°C-24.0\°C)}{44.0g(28.4\°C-99.0\°C)}\\\\C_m=0.474\frac{J}{g\°C}](https://tex.z-dn.net/?f=C_m%3D%5Cfrac%7B-80.0g%2A4.184%5Cfrac%7BJ%7D%7Bg%5C%C2%B0C%7D%20%2828.4%5C%C2%B0C-24.0%5C%C2%B0C%29%7D%7B44.0g%2828.4%5C%C2%B0C-99.0%5C%C2%B0C%29%7D%5C%5C%5C%5CC_m%3D0.474%5Cfrac%7BJ%7D%7Bg%5C%C2%B0C%7D)
Best regards!