Answer:
C. mixture
Explanation:
A mixture is an impure substance. It has the following properties;
- It's composition is indefinite
- Their constituents retain their identities i.e. physical properties are retained
- Constituents react differently to changed conditions
- They can easily be separated into constituents by physical methods.
Granite is a rock. A rock is usually formed by a combination of different minerals.
Granite is made up of many compounds and so it is a mixture.
If only that were true, you would see tidal power stations
all up and down every coast by now.
T = 3.5 secs
Velocity (v) = g * t = 10 m/s^2 * 3.5 sec = 35 m/s
Answer:
Kinetic Energy.
Explanation:
The movement of a roller coaster is accomplished by the conversion of potential energy to kinetic energy. The roller coaster cars gain potential energy as they are pulled to the top of the first hill. As the cars descend the potential energy is converted to kinetic energy.
