You are an engineer working for an amusement park. They have asked you to develop one of the fastest roller coasters in the U. S., but they also want it to be
cost efficient. Therefore, they do not want to have to use a lot of energy for
braking near the completion of the roller coaster ride. How would you develop
this ride so that it is still easy for to the amusement park guests to get on and off?

Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f

Urgent pls a. coal consumption levels off and remains flat. b. petroleum, natural gas, and renewables show an increase in consumption c. more nonrenewable resources continued to be consumed than renewable. d. there is little projected increase in nuclear energy use. e. carbon dioxide emissions are projected to decline as we approach 2040. global energy consumption is defined as the total energy used by an individual or organizations from around the world. use the graph above to analyze the projected energy consumption from now until 2040. which statements in the prompt apply? a) a, b, d b) b, c, d c) a, c, d d) a, b, c, d