Answer: 15 mph east
Explanation: Since the bicycle went east for 30 miles, in 2 hours. You divide 30 by how many hours which is 2. So, the solution is 15.
Answer:
2,800°F (1,538°C)
Explanation:
30g of iron will melt at the same temperature as 1g of iron.
When you drop something, gravity creates a force.
Atoms are made up of three particles: protons, neutrons and electrons. Protons and neutrons are heavier than electrons and reside in the center of the atom, which is called the nucleus.Jun 5, 2013-livescience.com