Answer:
D) Electric power distribution.
Explanation:
Electric power distribution requires high voltages to efficiently transmit electric power. This requires use of a transformer which uses electromagnetic induction.
Newtons 1st law of motion states that the object will continue to move at its present speed and direction until an outside force acts upon it.
So unless the objects inside the car are restrained, they will continue moving at whatever speed the car is traveling at, even if the car is stopped by a crash.
Answer:
![200 cal/^{\circ}C](https://tex.z-dn.net/?f=200%20cal%2F%5E%7B%5Ccirc%7DC)
Explanation:
When heat energy is supplied to an object, the temperature of the object increases according to the equation:
![Q=C\Delta T](https://tex.z-dn.net/?f=Q%3DC%5CDelta%20T)
where
Q is the heat supplied
C is the heat capacity of the object
is the change in temperature
In this problem we have:
is the energy supplied
is the change in temperature of the object
Therefore, the heat capacity of the object is:
![C=\frac{Q}{\Delta T}=\frac{10,000}{50}=200 cal/^{\circ}C](https://tex.z-dn.net/?f=C%3D%5Cfrac%7BQ%7D%7B%5CDelta%20T%7D%3D%5Cfrac%7B10%2C000%7D%7B50%7D%3D200%20cal%2F%5E%7B%5Ccirc%7DC)