Answer: 0.016 h
Explanation:
It is given that, biker has an average speed = 18 km/h
Total distance traveled = 0.30 km
Therefore, time taken by biker to travel this distance:
Thus, the biker takes 0.016 hours to travel the segment of 0.30 km at an average speed of 18 km/h.
Answer:
All chemical reactions involve energy. Energy is used to break bonds in reactants, and energy is released when new bonds form in products. Endothermic reactions absorb energy, and exothermic reactions release energy. The law of conservation of energy states that matter cannot be created or destroyed.From my reader
1. A lamp can transfer energy through light and thermal energy, fire, and a radiator.
2. A tuning fork can transfer sound energy/vibration throughout a medium, speaker, and a piano.
3. A heart works by electrical energy produced from chemical energy within the body, computer, and a phone.
