Write a report on roller coasters that includes the following information: The history of roller coasters
How roller coasters work
Roller coaster safety
Famous roller coasters
How does the number of riders on a roller coaster affect the speed that it can achieve?
In other words " As you increase the mass of an object rolling downhill, does it affect the
overall speed that can be achieved?"

The discovery of the electron as a subatomic particle was a result of

Ineed this now one scientist feels that the changes in global climatic patterns may be good for the health of the biosphere. another scientist feels that sharp changes in climatic patterns could result in the extinction of the biosphere. which of these is the most likely reason the two scientists gave conflicting opinions on the impact of changes in the global climatic pattern? they do not have enough knowledge on the topic. they did not discuss the issue among themselves. they believe conflicting opinion strengthens science. they study different areas of science and have different scientific focuses.

First answer marked as brainiest which is the correct equation describing the first law of thermodynamics? a) when the internal energy of a system changes, it equals the amount of heat added plus the work done. b) when work is done by the piston, it is equal to the heat added plus the change in internal energy of the system. c) when heat is added to the system, it is equal to the amount of work done by the piston plus the change in internal energy of the system.